LOAN AND SECURITY AGREEMENT

Exhibit 10.06

LOAN AND SECURITY AGREEMENT

THIS LOAN AND SECURITY AGREEMENT (this “Agreement”) dated as of April 19, 2011 (the “Effective Date”) between SILICON VALLEY BANK, a California corporation (“Bank”), and PROOFPOINT, INC., a Delaware corporation (“Borrower”), provides the terms on which Bank shall lend to Borrower and Borrower shall repay Bank.  The parties agree as follows:

1                                         ACCOUNTING AND OTHER TERMS

Accounting terms not defined in this Agreement shall be construed following GAAP.  Calculations and determinations must be made following GAAP, except as otherwise expressly provided in this Agreement.  Capitalized terms not otherwise defined in this Agreement shall have the meanings set forth in Section 13.  All other terms contained in this Agreement, unless otherwise indicated, shall have the meaning provided by the Code to the extent such terms are defined therein.

2                                         LOAN AND TERMS OF PAYMENT

2.1                               Promise to Pay.  Borrower hereby unconditionally promises to pay Bank the outstanding principal amount of all Credit Extensions and accrued and unpaid interest thereon as and when due in accordance with this Agreement.

2.1.1 Equipment Facility.

(a)                                  Equipment Advances.  Subject to the terms and conditions of this Agreement, during the Draw Period, Bank shall make advances (each, an “Equipment Advance” and, collectively, “Equipment Advances”) not exceeding the Equipment Line.  Equipment Advances may only be used to finance: (i) Eligible Equipment purchased within one hundred twenty (120) days (determined based upon the applicable invoice date of such Eligible Equipment) before the date of each Equipment Advance, (ii) Other Equipment, and (iii) repayment of existing term Indebtedness of Borrower or leasehold expenses of Borrower (collectively, “Term Debt”); provided, however, unless otherwise agreed to by Bank in writing, not more than 35% of the proceeds of each Equipment Advance may be used to finance Other Equipment and repayment of Term Debt.  The portion of each Equipment Advance (at least 65%) that cannot be used to finance Other Equipment or the repayment of Term Debt, may not exceed 100% of the total invoice for Eligible Equipment (excluding taxes, shipping, warranty charges, freight discounts and installation expenses relating to such Eligible Equipment, which may be financed pursuant hereto as Other Equipment if the requisite percentages are met).  Each Equipment Advance must be in an amount equal at least the lesser of Five Hundred Thousand Dollars ($500,000) or the amount that has not yet been drawn under the Equipment Line.  After repayment, no Equipment Advance may be reborrowed.

(b)                                 Repayment.  Borrower shall repay each Equipment Advance pursuant to the terms set forth in its corresponding Loan Supplement.  For each Equipment Advance, Borrower shall make: (i) monthly payments of interest only during the Equipment Interest Only Period, and (ii) commencing as of the Equipment Amortization Date and on the first day of each successive calendar month (each a “Payment Date”), thirty six (36) equal monthly payments of principal, plus any accrued interest, calculated by Bank based upon (i) the amount of the Equipment Advance, (ii) the interest rate set forth in Section 2.3, and (iii) an amortization schedule equal to the Repayment Period (individually, the “Scheduled Payment”, and collectively, “Scheduled Payments”).  All outstanding principal and accrued and unpaid interest is due and payable in full on the last Payment Date with respect to such Equipment Advance.  An Equipment Advance may only be prepaid, at Borrower’s option, in accordance with Sections 2.1.1(c) and 2.1.1(e).

(c)                                  Prepayment Upon an Event of Loss.  Borrower shall bear the risk of any loss, theft, destruction, or damage of or to the Financed Equipment.  If during the term of this Agreement any item of Financed Equipment becomes obsolete or is lost, stolen, destroyed, damaged beyond repair, rendered permanently unfit for use, or seized by a governmental authority for any reason for a period equal to at least the remainder of the term of this Agreement (an “Event of Loss”), then if no Event of Default has occurred and is continuing, within ten (10) days following the Event of Loss, at Borrower’s option, Borrower shall (i) pay to Bank, with respect to the Financed Equipment subject to the Event of Loss, all outstanding principal, all accrued and unpaid interest to the date of the prepayment; or (ii) repair or replace any Financed Equipment subject to the Event of Loss provided the repaired or replaced Financed Equipment is of equal or like value to the Financed Equipment subject to the Event of Loss and

provided further that Bank has a first priority perfected security interest in such repaired or replaced Financed Equipment subject to Permitted Liens.

(d)                                 Mandatory Prepayment Upon an Acceleration.  If the Equipment Advances are accelerated following the occurrence of an Event of Default, Borrower shall immediately pay to Bank an amount equal to the sum of (i) all outstanding principal plus accrued and unpaid interest, (ii) the Prepayment Fee, and (iii) all other sums, if any, that shall have become due and payable, including interest at the Default Rate with respect to any past due amounts.

(e)                                  Permitted Prepayment of Equipment Advances.  So long as no Event of Default has occurred and is continuing, Borrower shall have the option to prepay all, but not less than all, of the Equipment Advances advanced by Bank under this Agreement, provided Borrower (i) delivers written notice to Bank of its election to prepay the Equipment Advances at least five (5) Business Days prior to such prepayment, and (ii) pays, on the date of such prepayment (A) all outstanding principal plus accrued and unpaid interest, (B) the Prepayment Fee, and (C) all other sums, if any, that shall have become due and payable, including interest at the Default Rate with respect to any past due amounts.

2.1.2                     General Provisions Relating to the Advances.  Each Equipment Advance shall be made in Dollars and shall, at Borrower’s option in accordance with the terms of this Agreement, be either in the form of a Prime Rate Advance or a LIBOR Advance; provided, that in no event shall Borrower maintain at any time LIBOR Advances having more than two (2) different Interest Periods.  Borrower shall pay interest accrued on the Equipment Advances at the rates and in the manner set forth in Section 2.3(b).

2.2                               Intentionally omitted.

2.3                               Payment of Interest on the Credit Extensions.

(a)                                  Computation of Interest.  Interest on the Credit Extensions and all fees payable hereunder shall be computed on the basis of a 360-day year and the actual number of days elapsed in the period during which such interest accrues.  In computing interest on any Credit Extension, the date of the making of such Credit Extension shall be included and the date of payment shall be excluded; provided, however, that if any Credit Extension is repaid on the same day on which it is made, such day shall be included in computing interest on such Credit Extension.

(b)                                 Interest; Payment.  Each Equipment Advance shall bear interest on the outstanding principal amount thereof from the date when made, continued or converted until paid in full at a rate per annum equal to (i) for Prime Rate Advances, 0.50% above the Prime Rate and (ii) for LIBOR Advances, the LIBOR Rate plus the applicable LIBOR Rate Margin.  On and after the expiration of any Interest Period applicable to any LIBOR Advance outstanding on the date of occurrence of an Event of Default or acceleration of the Obligations, the Effective Amount of such LIBOR Advance shall, during the continuance of such Event of Default or after acceleration, bear interest at a rate per annum equal to the Prime Rate plus five and one-half percent (5.50%).  Pursuant to the terms hereof, interest on each Equipment Advance shall be paid in arrears on each Interest Payment Date.  Interest shall also be paid on the date of any prepayment of any Equipment Advance pursuant to this Agreement for the portion of any Equipment Advance so prepaid and upon payment (including prepayment) in full thereof.  All accrued but unpaid interest on the Equipment Advances shall be due and payable on the Equipment Maturity Date.

(c)                                  Default Rate.  Except as otherwise provided in Section 2.3(b), upon the occurrence and during the continuance of an Event of Default, Obligations shall bear interest at a rate five percent (5.0%) above the rate that would otherwise be applicable thereto (the “Default Rate”) unless Bank otherwise elects from time to time in its sole discretion to impose a smaller increase.  Payment or acceptance of the increased interest provided in this Section 2.3(c) is not a permitted alternative to timely payment and shall not constitute a waiver of any Event of Default or otherwise prejudice or limit any rights or remedies of Bank.

(d)                                 Prime Rate Advances.  Each change in the interest rate of the Prime Rate Advances based on changes in the Prime Rate shall be effective on the effective date of such change and to the extent of such change.

(e)                                  LIBOR Advances.  The interest rate applicable to each LIBOR Advance shall be determined in accordance with Section 3.7(a) hereunder.  Subject to Sections 3.6 through 3.8, such rate shall apply

2

during the entire Interest Period applicable to such LIBOR Advance, and interest calculated thereon shall be payable on the Interest Payment Date applicable to such LIBOR Advance.

(f)                                    Debit of Accounts.  Bank may debit any of Borrower’s deposit accounts, including the Designated Deposit Account, for principal and interest payments or any other amounts Borrower owes Bank when due.  These debits shall not constitute a set-off.

(g)                                 Interest Payment Date.  Unless otherwise provided, interest is payable monthly on the first (1st) calendar day of each month.

2.4                               Fees.  Borrower shall pay to Bank:

(a)                                  Loan Fee.  A fully earned, non-refundable loan fee of $20,000, on the Effective Date;

(b)                                 Prepayment Fee.  The Prepayment Fee, if and when due hereunder; and

(c)                                  Bank Expenses.  All Bank Expenses (including reasonable attorneys’ fees and expenses for documentation and negotiation of this Agreement) incurred through and after the Effective Date, when due.

2.5                               Payments; Application of Payments.

(a)                                  All payments (including prepayments) to be made by Borrower under any Loan Document shall be made in immediately available funds in U.S. Dollars, without setoff or counterclaim, before 12:00 p.m. Pacific time on the date when due.  Payments of principal and/or interest received after 12:00 p.m. Pacific time are considered received at the opening of business on the next Business Day.  When a payment is due on a day that is not a Business Day, the payment shall be due the next Business Day, and additional fees or interest, as applicable, shall continue to accrue until paid.

(b)                                 Borrower shall have no right to specify the order or the accounts to which Bank shall allocate or apply any payments required to be made by Borrower to Bank or otherwise received by Bank under this Agreement when any such allocation or application is not specified elsewhere in this Agreement.

3                                         CONDITIONS OF LOANS

3.1                               Conditions Precedent to Initial Credit Extension.  Bank’s obligation to make the initial Credit Extension is subject to the condition precedent that Bank shall have received, in form and substance satisfactory to Bank, such documents, and completion of such other matters, as Bank may reasonably deem necessary or appropriate, including, without limitation:

(a)                                  duly executed original signatures to the Loan Documents;

(b)                                 Borrower’s Operating Documents and a good standing certificate of Borrower certified by the Secretary of State of the States of Delaware and California as of a date no earlier than thirty (30) days prior to the Effective Date;

(c)                                  duly executed original signatures to the completed Borrowing Resolutions for Borrower;

(d)                                 certified copies, dated as of a recent date, of financing statement searches, as Bank shall request, accompanied by written evidence (including any UCC termination statements) that the Liens indicated in any such financing statements either constitute Permitted Liens or have been or, in connection with the initial Credit Extension, will be terminated or released;

(e)                                  the Perfection Certificate of Borrower, together with the duly executed original signature thereto;

(f)                                    evidence satisfactory to Bank that the insurance policies required by Section 6.5 hereof are in full force and effect, together with appropriate evidence showing lender loss payable and/or additional insured clauses and cancellation notice to Bank (or endorsements reflecting the same) in favor of Bank;

3

(g)                                 payment of the fees and Bank Expenses then due as specified in Section 2.4 hereof.

3.2                               Conditions Precedent to all Credit Extensions.  Bank’s obligations to make each Credit Extension, including the initial Credit Extension, is subject to the following conditions precedent:

(a)                                  except as otherwise provided in Section 3.5(a), timely receipt of an executed Payment/Advance Form, Notice of Borrowing and Loan Supplement;

(b)                                 the representations and warranties in this Agreement shall be true, accurate, and complete in all material respects on the date of the Notice of Borrowing and Loan Supplement and on the Funding Date of each Credit Extension; provided, however, that such materiality qualifier shall not be applicable to any representations and warranties that already are qualified or modified by materiality in the text thereof; and provided, further that those representations and warranties expressly referring to a specific date shall be true, accurate and complete in all material respects as of such date, and no Event of Default shall have occurred and be continuing or result from the Credit Extension.  Each Credit Extension is Borrower’s representation and warranty on that date that the representations and warranties in this Agreement remain true, accurate, and complete in all material respects; provided, however, that such materiality qualifier shall not be applicable to any representations and warranties that already are qualified or modified by materiality in the text thereof; and provided, further that those representations and warranties expressly referring to a specific date shall be true, accurate and complete in all material respects as of such date; and

(c)                                  in Bank’s sole discretion made in good faith, there has not been any material impairment in the general affairs, management, results of operation, financial condition or the prospect of repayment of the Obligations, or any material adverse deviation by Borrower from the most recent business plan of Borrower presented to and accepted by Bank.

3.3                               Intentionally omitted.

3.4                               Covenant to Deliver.  Borrower agrees to deliver to Bank each item required to be delivered to Bank under this Agreement as a condition precedent to any Credit Extension.  Borrower expressly agrees that a Credit Extension made prior to the receipt by Bank of any such item shall not constitute a waiver by Bank of Borrower’s obligation to deliver such item, and the making of any Credit Extension in the absence of a required item shall be in Bank’s sole discretion.

3.5                               Procedures for Borrowing.

(a)                                  Subject to the prior satisfaction of all other applicable conditions to the making of an Equipment Advance set forth in this Agreement, each Equipment Advance shall be made upon Borrower’s irrevocable written notice delivered to Bank in the form of a Notice of Borrowing, each executed by a Responsible Officer of Borrower or his or her designee or without instructions if the Equipment Advances are necessary to meet Obligations which have become due.  Bank may rely on any telephone notice given by a person whom Bank believes is a Responsible Officer or designee.  Borrower will indemnify Bank for any loss Bank suffers due to such reliance.  Such Notice of Borrowing must be received by Bank prior to 12:00 p.m.Pacific time, (i) at least three (3) Business Days prior to the requested Funding Date, in the case of LIBOR Advances, and (ii) on the requested Funding Date, in the case of Prime Rate Advances, specifying: (1) the amount of the Equipment Advance; (2) the requested Funding Date; (3) whether the Equipment Advance is to be comprised of LIBOR Advances or Prime Rate Advances; and (4) the duration of the Interest Period applicable to any such LIBOR Advances included in such notice; provided that if the Notice of Borrowing shall fail to specify the duration of the Interest Period for any Equipment Advance comprised of LIBOR Advances, such Interest Period shall be one (1) month.  Borrower shall also deliver to Bank by electronic mail or facsimile a completed Loan Supplement, executed by a Responsible Officer or his or her designee, copies of invoices for the Financed Equipment and such additional information as Bank may reasonably request at least five (5) Business Days before the proposed Funding Date.  At Bank’s discretion, Bank shall have the opportunity to confirm that, upon filing the UCC-1 financing statement covering the Equipment described on the Loan Supplement, Bank shall have a first priority perfected security interest in such Equipment subject to Permitted Liens.

(b)                                 If Borrower satisfies the conditions of each Equipment Advance, the proceeds of such Equipment Advances will then be made available to Borrower on the Funding Date by Bank by transfer to the

4

Designated Deposit Account and, subsequently, by wire transfer to such other account as Borrower may instruct in the Notice of Borrowing.

3.6                               Conversion and Continuation Elections.

(a)                                  So long as (i) no Event of Default exists; (ii) Borrower shall not have sent any notice of termination of this Agreement; and (iii) Borrower shall have complied with such customary procedures as Bank has established from time to time for Borrower’s requests for LIBOR Advances, Borrower may, upon irrevocable written notice to Bank:

(1)                                  elect to convert on any Business Day, Prime Rate Advances into LIBOR Advances;

(2)                                  elect to continue on any Interest Payment Date any LIBOR Advances maturing on such Interest Payment Date; or

(3)                                  elect to convert on any Interest Payment Date any LIBOR Advances maturing on such Interest Payment Date into Prime Rate Advances.

(b)                                 Borrower shall deliver a Notice of Conversion/Continuation in accordance with Section 10 to be received by Bank prior to 12:00 p.m.  Pacific time (i) at least three (3) Business Days in advance of the Conversion Date or Continuation Date, if any Equipment Advances are to be converted into or continued as LIBOR Advances; and (ii) on the Conversion Date, if any Equipment Advances are to be converted into Prime Rate Advances, in each case specifying the:

(1)                                  proposed Conversion Date or Continuation Date;

(2)                                  aggregate amount of the Equipment Advances to be converted or continued;

(3)                                  nature of the proposed conversion or continuation; and

(4)                                  duration of the requested Interest Period.

(c)                                  If upon the expiration of any Interest Period applicable to any LIBOR Advances, Borrower shall have timely failed to select a new Interest Period to be applicable to such LIBOR Advances, Borrower shall be deemed to have elected to convert such LIBOR Advances into Prime Rate Advances.

(d)                                 Any LIBOR Advances shall, at Bank’s option, convert into Prime Rate Advances in the event that (i) an Event of Default shall exist, or (ii) the aggregate principal amount of the Prime Rate Advances which have been previously converted to LIBOR Advances, or the aggregate principal amount of existing LIBOR Advances continued, as the case may be, at the beginning of an Interest Period shall at any time during such Interest Period exceed the Equipment Line.  Borrower agrees to pay Bank, upon demand by Bank (or Bank may, at its option, charge the Designated Deposit Account or any other account Borrower maintains with Bank) any amounts required to compensate Bank for any loss (including loss of anticipated profits), cost, or expense incurred by Bank, as a result of the conversion of LIBOR Advances to Prime Rate Advances pursuant to this Section 3.6(d).

(e)                                  Notwithstanding anything to the contrary contained herein, Bank shall not be required to purchase United States Dollar deposits in the London interbank market or other applicable LIBOR market to fund any LIBOR Advances, but the provisions hereof shall be deemed to apply as if Bank had purchased such deposits to fund the LIBOR Advances.

3.7.                            Special Provisions Governing LIBOR Advances.  Notwithstanding any other provision of this Agreement to the contrary, the following provisions shall govern with respect to LIBOR Advances as to the matters covered:

(a)                                  Determination of Applicable Interest Rate.  As soon as practicable on each Interest Rate Determination Date, Bank shall determine (which determination shall, absent manifest error in calculation, be final, conclusive and binding upon all parties) the interest rate that shall apply to the LIBOR Advances for which an interest rate is then being determined for the applicable Interest Period and shall promptly give notice thereof (in writing or by telephone confirmed in writing) to Borrower.

5

(b)                                 Inability to Determine Applicable Interest Rate.  In the event that Bank shall have determined (which determination shall be final and conclusive and binding upon all parties hereto), on any Interest Rate Determination Date with respect to any LIBOR Advance, that by reason of circumstances affecting the London interbank market adequate and fair means do not exist for ascertaining the interest rate applicable to such Equipment Advance on the basis provided for in the definition of LIBOR, Bank shall on such date give notice (by facsimile or by telephone confirmed in writing) to Borrower of such determination, whereupon (i) no Equipment Advances may be made as, or converted to, LIBOR Advances until such time as Bank notifies Borrower that the circumstances giving rise to such notice no longer exist, and (ii) any Notice of Borrowing or Notice of Conversion/Continuation given by Borrower with respect to Equipment Advances in respect of which such determination was made shall be deemed to be rescinded by Borrower.

(c)                                  Compensation for Breakage or Non-Commencement of Interest Periods.  Borrower shall compensate Bank, upon written request by Bank (which request shall set forth the manner and method of computing such compensation), for all losses, expenses, unrealized gains and liabilities (including any interest paid by Bank to lenders of funds borrowed by it to make or carry its LIBOR Advances, any loss, expense or liability incurred by Bank in connection with the liquidation or re-employment of such funds, and, in the case of complete or partial principal payments or conversions of LIBOR Advances prior to the last day of the applicable Interest Period, any amount by which (A) the additional interest which would have been payable on the amount so prepaid or converted had it not been paid or converted until the last day of the applicable Interest Period exceeds (B) the interest which would have been recoverable by Bank by placing the amount so received on deposit in the certificate of deposit markets, the offshore currency markets, or United States Treasury investment products, as the case may be, for a period starting on the date on which it was so paid or converted and ending on the last day of such Interest Period at the interest rate determined by Bank in its reasonable discretion), if any, that Bank may incur: (i) if for any reason (other than a default by Bank or due to any failure of Bank to fund LIBOR Advances due to impracticability or illegality under Sections 3.7 or 3.8) a borrowing or a conversion to or continuation of any LIBOR Advance does not occur on a date specified in a Notice of Borrowing or a Notice of Conversion/Continuation, as the case may be, or (ii) if for any reason (including voluntary or mandatory prepayment or acceleration) any complete or partial principal payment or any conversion of any of Borrower’s LIBOR Advances occurs on a date prior to the last day of an Interest Period applicable to that Equipment Advance.  Bank’s determination as to such amount shall be conclusive absent manifest error.  Borrower shall immediately notify Borrower’s account officer at Bank if any of the situations described in (ii) above occur.

(d)                                 Assumptions Concerning Funding of LIBOR Advances.  Calculation of all amounts payable to Bank under this Section 3.7 and under Section 3.8 shall be made as though Bank had actually funded each of its relevant LIBOR Advances through the purchase of a Eurodollar deposit bearing interest at the rate obtained pursuant to the definition of LIBOR Rate in an amount equal to the amount of such LIBOR Advance and having a maturity comparable to the relevant Interest Period; provided, however, that Bank may fund each of its LIBOR Advances in any manner it sees fit and the foregoing assumptions shall be utilized only for the purposes of calculating amounts payable under this Section 3.7 and under Section 3.8.

(e)                                  LIBOR Advances After Default.  After the occurrence and during the continuance of an Event of Default, (i) Borrower may not elect to have an Equipment Advance be made or continued as, or converted to, a LIBOR Advance after the expiration of any Interest Period then in effect for such Equipment Advance and (ii) subject to the provisions of Section 3.7(c), any Notice of Conversion/Continuation given by Borrower with respect to a requested conversion/continuation that has not yet occurred shall, at Bank’s option, be deemed to be rescinded by Borrower and be deemed a request to convert or continue Equipment Advances referred to therein as Prime Rate Advances.

3.8                               Additional Requirements/Provisions Regarding LIBOR Advances.

(a)                                  Borrower shall pay Bank, upon demand by Bank, from time to time such amounts as Bank may determine to be necessary to compensate it for any costs incurred by Bank that Bank determines are attributable to its making or maintaining of any amount receivable by Bank hereunder in respect of any LIBOR Advances relating thereto (such increases in costs and reductions in amounts receivable being herein called “Additional Costs”), in each case resulting from any Regulatory Change which:

(i)                                     changes the basis of taxation of any amounts payable to Bank under this Agreement in respect of any LIBOR Advances (other than changes which affect taxes measured by or imposed on the overall net income of Bank by the jurisdiction in which Bank has its principal office);

6

(ii)                                  imposes or modifies any reserve, special deposit or similar requirements relating to any extensions of credit or other assets of, or any deposits with, or other liabilities of Bank (including any LIBOR Advances or any deposits referred to in the definition of LIBOR); or

(iii)                               imposes any other condition affecting this Agreement (or any of such extensions of credit or liabilities).

Bank will notify Borrower of any event occurring after the Effective Date which will entitle Bank to compensation pursuant to this Section 3.8(a) as promptly as practicable after it obtains knowledge thereof and determines to request such compensation.  Bank will furnish Borrower with a statement setting forth the basis and amount of each request by Bank for compensation under this Section 3.8(a).  Determinations and allocations by Bank for purposes of this Section 3.8(a) of the effect of any Regulatory Change on its costs of maintaining its obligations to make LIBOR Advances, of making or maintaining LIBOR Advances, or on amounts receivable by it in respect of LIBOR Advances, and of the additional amounts required to compensate Bank in respect of any Additional Costs, shall be conclusive absent manifest error.

(b)                                 If Bank shall determine that the adoption or implementation of any applicable law, rule, regulation, or treaty regarding capital adequacy, or any change therein, or any change in the interpretation or administration thereof by any governmental authority, central bank, or comparable agency charged with the interpretation or administration thereof, or compliance by Bank (or its applicable lending office) with any request or directive regarding capital adequacy (whether or not having the force of law) of any such authority, central bank, or comparable agency, has or would have the effect of reducing the rate of return on capital of Bank or any person or entity controlling Bank (a “Parent”) as a consequence of its obligations hereunder to a level below that which Bank (or its Parent) could have achieved but for such adoption, change, or compliance (taking into consideration policies with respect to capital adequacy) by an amount deemed by Bank to be material, then from time to time, within ten (10) Business Days after delivery to Borrower from Bank in accordance with Section 10 of the statement referred to in the next sentence, Borrower shall pay to Bank such additional amount or amounts as will compensate Bank for such reduction.  Bank will furnish Borrower with a statement setting forth the basis and amount of each request by Bank under this Section 3.8(b) which shall be conclusive absent manifest error.

(c)                                  If, at any time, Bank, in its sole and absolute discretion, determines that (i) the amount of LIBOR Advances for periods equal to the corresponding Interest Periods are not available to Bank in the offshore currency interbank markets, or (ii) LIBOR does not accurately reflect the cost to Bank of lending the LIBOR Advances, then Bank shall promptly give notice thereof to Borrower.  Upon the giving of such notice, Bank’s obligation to make the LIBOR Advances shall terminate; provided, however, LIBOR Advances shall not terminate if Bank and Borrower agree in writing to a different interest rate applicable to LIBOR Advances.

(d)                                 If it shall become unlawful for Bank to continue to fund or maintain any LIBOR Advances, or to perform its obligations hereunder, upon demand by Bank, Borrower shall prepay the LIBOR Advances in full with accrued interest thereon and all other amounts payable by Borrower hereunder (including, without limitation, any amount payable in connection with such prepayment pursuant to Section 3.7(c)(ii)).  Notwithstanding the foregoing, to the extent a determination by Bank as described above relates to a LIBOR Advance then being requested by Borrower pursuant to a Notice of Borrowing or a Notice of Conversion/Continuation, Borrower shall have the option, subject to the provisions of Section 3.7(c)(ii), to (i) rescind such Notice of Borrowing or Notice of Conversion/Continuation by giving notice (by facsimile or by telephone confirmed in writing) to Bank of such rescission on the date on which Bank gives notice of its determination as described above, or (ii) modify such Notice of Borrowing or Notice of Conversion/Continuation to obtain a Prime Rate Advance or to have outstanding Advances converted into or continued as Prime Rate Advances by giving notice (by facsimile or by telephone confirmed in writing) to Bank of such modification on the date on which Bank gives notice of its determination as described above.

4                                         CREATION OF SECURITY INTEREST

4.1                               Grant of Security Interest.  Borrower hereby grants Bank, to secure the payment and performance in full of all of the Obligations, a continuing security interest in, and pledges to Bank, the Collateral, wherever located, whether now owned or hereafter acquired or arising, and all proceeds and products thereof.

4.2                               Priority of Security Interest.  Borrower represents, warrants, and covenants that the security interest granted herein is and shall at all times continue to be a first priority perfected security interest in the

7

Collateral (subject only to Permitted Liens that may have superior priority to Bank’s Lien under this Agreement). If Borrower shall acquire a commercial tort claim, Borrower shall promptly notify Bank in a writing signed by Borrower of the general details thereof and grant to Bank in such writing a security interest therein and in the proceeds thereof, all upon the terms of this Agreement, with such writing to be in form and substance reasonably satisfactory to Bank.

4.3                               Authorization to File Financing Statements.  Borrower hereby authorizes Bank to file financing statements, without notice to Borrower, with all appropriate jurisdictions to perfect or protect Bank’s interest or rights hereunder, including a notice that any disposition of the Collateral, by either Borrower or any other Person, shall be deemed to violate the rights of Bank under the Code.

5                                         REPRESENTATIONS AND WARRANTIES

Borrower represents and warrants, except as set forth in the Perfection Certificate, as follows:

5.1                               Due Organization, Authorization; Power and Authority.  Borrower is duly existing and in good standing as a Registered Organization in its jurisdiction of formation and is qualified and licensed to do business and is in good standing in any jurisdiction in which the conduct of its business or its ownership of property requires that it be qualified except where the failure to do so could not reasonably be expected to have a material adverse effect on Borrower’s business.  In connection with this Agreement, Borrower has delivered to Bank a completed certificate each signed by Borrower, entitled “Perfection Certificate.” Borrower represents and warrants to Bank that (a) Borrower’s exact legal name is that indicated on the Perfection Certificate and on the signature page hereof; (b) Borrower is an organization of the type and is organized in the jurisdiction set forth in the Perfection Certificate; (c) the Perfection Certificate accurately sets forth Borrower’s organizational identification number or accurately states that Borrower has none; (d) the Perfection Certificate accurately sets forth Borrower’s place of business, or, if more than one, its chief executive office as well as Borrower’s mailing address (if different than its chief executive office); (e) Borrower (and each of its predecessors) has not, in the past five (5) years, changed its jurisdiction of formation, organizational structure or type, or any organizational number assigned by its jurisdiction; and (f) all other information set forth on the Perfection Certificate pertaining to Borrower and each of its Subsidiaries is accurate and complete (it being understood and agreed that Borrower may from time to time update certain information in the Perfection Certificate after the Effective Date to the extent permitted by one or more specific provisions in this Agreement).  lf Borrower is not now a Registered Organization but later becomes one, Borrower shall promptly notify Bank of such occurrence and provide Bank with Borrower’s organizational identification number.

The execution, delivery and performance by Borrower of the Loan Documents to which it is a party have been duly authorized, and do not (i) conflict with any of Borrower’s organizational documents, (ii) contravene, conflict with, constitute a default under or violate any material Requirement of Law, (iii) contravene, conflict or violate any applicable order, writ, judgment, injunction, decree, determination or award of any Governmental Authority by which Borrower or any of its Subsidiaries or any of their property or assets may be bound or affected, (iv) require any action by, filing, registration, or qualification with, or Governmental Approval from, any Governmental Authority (except such Governmental Approvals which have already been obtained and are in full force and effect) or (v) constitute an event of default under any material agreement by which Borrower is bound.  Borrower is not in default under any agreement to which it is a party or by which it is bound in which the default could reasonably be expected to have a material adverse effect on Borrower’s business.

5.2                               Collateral.  Borrower has good title to, has rights in, and the power to transfer each item of the Collateral upon which it purports to grant a Lien hereunder, free and clear of any and all Liens except Permitted Liens.  Borrower has no deposit accounts other than the deposit accounts with Bank, the deposit accounts, if any, described in the Perfection Certificate delivered to Bank in connection herewith, or of which Borrower has given Bank notice and taken such actions as are necessary to give Bank a perfected security interest therein.

The Collateral is not in the possession of any third party bailee (such as a warehouse) except as otherwise provided in the Perfection Certificate.  None of the components of the Collateral shall be maintained at locations other than as provided in the Perfection Certificate or as permitted pursuant to Section 7.2.

5.3                               Intentionally omitted.

8

5.4                               Litigation.  There are no actions or proceedings pending or, to the knowledge of the Responsible Officers, threatened in writing by or against Borrower or any of its Subsidiaries involving more than, individually or in the aggregate, Fifty Thousand Dollars ($50,000).

5.5                               Financial Statements; Financial Condition.  All consolidated financial statements for Borrower and any of its Subsidiaries delivered to Bank fairly present in all material respects Borrower’s consolidated financial condition and Borrower’s consolidated results of operations.  There has not been any material deterioration in Borrower’s consolidated financial condition since the date of the most recent financial statements submitted to Bank.

5.6                               Solvency.  The fair salable value of Borrower’s assets (including goodwill minus disposition costs) exceeds the fair value of its liabilities; Borrower is not left with unreasonably small capital after the transactions in this Agreement; and Borrower is able to pay its debts (including trade debts) as they mature.

5.7                               Regulatory Compliance.  Borrower is not an “investment company” or a company “controlled” by an “investment company” under the Investment Company Act of 1940, as amended.  Borrower is not engaged as one of its important activities in extending credit for margin stock (under Regulations X, T and U of the Federal Reserve Board of Governors).  Borrower has complied in all material respects with the Federal Fair Labor Standards Act.  Neither Borrower nor any of its Subsidiaries is a “holding company” or an “affiliate” of a “holding company” or a “subsidiary company” of a “holding company” as each term is defined and used in the Public Utility Holding Company Act of 2005.  Borrower has not violated any laws, ordinances or rules, the violation of which could reasonably be expected to have a material adverse effect on its business.  None of Borrower’s or any of its Subsidiaries’ properties or assets has been used by Borrower or any Subsidiary or, to the best of Borrower’s knowledge, by previous Persons, in disposing, producing, storing, treating, or transporting any hazardous substance other than legally.  Borrower and each of its Subsidiaries have obtained all consents, approvals and authorizations of, made all declarations or filings with, and given all notices to, all Government Authorities that are necessary to continue their respective businesses as currently conducted.

5.8                               Subsidiaries; Investments.  Borrower does not own any stock, partnership interest or other equity securities except for Permitted Investments.

5.9                               Tax Returns and Payments; Pension Contributions.  Borrower has timely filed all required tax returns and reports, and Borrower has timely paid all foreign, federal, state and local taxes, assessments, deposits and contributions owed by Borrower, except for failure to pay in a timely manner state and local taxes in an aggregate amount not to exceed $150,000.  Borrower may defer payment of any contested taxes, provided that Borrower (a) in good faith contests its obligation to pay the taxes by appropriate proceedings promptly and diligently instituted and conducted, (b) notifies Bank in writing of the commencement of, and any material development in, the proceedings, and (c) posts bonds or takes any other steps required to prevent the governmental authority levying such contested taxes from obtaining a Lien upon any of the Collateral that is other than a “Permitted Lien”.  Borrower is unaware of any claims or adjustments proposed for any of Borrower’s prior tax years which could result in additional taxes becoming due and payable by Borrower.  Borrower has paid all amounts necessary to fund all present pension, profit sharing and deferred compensation plans in accordance with their terms, and Borrower has not withdrawn from participation in, and has not permitted partial or complete termination of, or permitted the occurrence of any other event with respect to, any such plan which could reasonably be expected to result in any liability of Borrower, including any liability to the Pension Benefit Guaranty Corporation or its successors or any other governmental agency.

5.10                        Use of Proceeds.  Borrower shall use the proceeds of the Credit Extensions solely as working capital, to purchase Eligible Equipment, Other Equipment, repayment of Term Debt and to fund its general business requirements and not for personal, family, household or agricultural purposes.

5.11                        Full Disclosure.  No written representation, warranty or other statement of Borrower in any certificate or written statement given to Bank, as of the date such representation, warranty, or other statement was made, taken together with all such written certificates and written statements given to Bank, contains any untrue statement of a material fact or omits to state a material fact necessary to make the statements contained in the certificates or statements not misleading (it being recognized by Bank that the projections and forecasts provided by Borrower in good faith and based upon reasonable assumptions are not viewed as facts and that actual results during the period or periods covered by such projections and forecasts may differ from the projected or forecasted results).

9

5.12                        Definition of “Knowledge.”  For purposes of the Loan Documents, whenever a representation or warranty is made to Borrower’s knowledge or awareness, to the “best of” Borrower’s knowledge, or with a similar qualification, knowledge or awareness means the actual knowledge, after reasonable investigation, of the Responsible Officers.

6                                         AFFIRMATIVE COVENANTS

From the Effective Date through and until the termination of this Agreement pursuant to Section 12.11, Borrower shall do all of the following:

6.1                               Government Compliance.

(a)                                  Maintain its and all its Subsidiaries’ legal existence and good standing in their respective jurisdictions of formation and maintain qualification in each jurisdiction in which the failure to so qualify would reasonably be expected to have a material adverse effect on Borrower’s business or operations.  Borrower shall comply, and have each Subsidiary comply, with all laws, ordinances and regulations to which it is subject, noncompliance with which could have a material adverse effect on Borrower’s business.

(b)                                 Obtain all of the Governmental Approvals necessary for the performance by Borrower of its obligations under the Loan Documents to which it is a party and the grant of a security interest to Bank in all of its property.  Borrower shall promptly provide copies of any such obtained Governmental Approvals to Bank.

6.2                               Financial Statements, Reports, Certificates.  Deliver to Bank:

(a)                                  Monthly Financial Statements.  As soon as available, but no later than thirty (30) days after the last day of each month, a company prepared consolidated balance sheet and income statement covering Borrower’s consolidated operations for such month certified by a Responsible Officer and in a form acceptable to Bank (the “Monthly Financial Statements”);

(b)                                 Monthly Compliance Certificate.  Within thirty (30) days after the last day of each month and together with the Monthly Financial Statements, a duly completed Compliance Certificate signed by a Responsible Officer, certifying that as of the end of such month, Borrower was in full compliance with all of the terms and conditions of this Agreement, and setting forth calculations showing compliance with the financial covenants set forth in this Agreement and such other information as Bank shall reasonably request;

(c)                                  Annual Audited Financial Statements.  As soon as available, but no later than two hundred seventy (270) days after the last day of Borrower’s fiscal year, audited consolidated financial statements prepared under GAAP, consistently applied, together with an unqualified opinion on the financial statements from an independent certified public accounting firm acceptable to Bank in its reasonable discretion;

(d)                                 Annual Projections.  Annual financial projections approved by Borrower’s Board of Directors consistent in form and detail with those provided to Borrower’s venture capital investors, as soon as available, but no later than the earlier of (i) sixty (60) days after the last day of Borrower’s fiscal year, or (ii) seven (7) days after the approval thereof by Borrowers Board of Directors;

(e)                                  Other Statements.  Within five (5) days of delivery, copies of all statements, reports and notices made available to Borrower’s security holders or to any holders of Subordinated Debt;

(f)                                    SEC Filings.  In the event that Borrower becomes subject to the reporting requirements under the Exchange Act within five (5) days of filing, copies of all periodic and other reports, proxy statements and other materials filed by Borrower with the SEC, any Governmental Authority succeeding to any or all of the functions of the SEC or with any national securities exchange, or distributed to its shareholders, as the case may be.  Documents required to be delivered pursuant to the terms hereof (to the extent any such documents are included in materials otherwise filed with the SEC) may be delivered electronically and if so delivered, shall be deemed to have been delivered on the date on which Borrower posts such documents, or provides a link thereto, on Borrower’s website on the Internet at Borrower’s website address;

(g)                                 Legal Action Notice.  A prompt report of any legal actions pending or threatened in writing against Borrower or any of its Subsidiaries that would reasonably be expected to result in damages or costs

10

to Borrower or any of its Subsidiaries of, individually or in the aggregate, Two Hundred Fifty Thousand Dollars ($250,000) or more; and

(h)                                 Other Financial Information.  Other financial information reasonably requested by Bank.

6.3                               Collection of Accounts.  Direct all Account Debtors to pay all proceeds of Accounts directly into the lockbox account currently in use through Bank, or such other “blocked account” as specified by Bank, pursuant to a blocked account agreement in such form as Bank may specify in its good faith business judgment; all wire payments by Account Debtors are to be directed into the Silicon Valley Bank Cash Collateral Account.  Whether or not an Event of Default has occurred and is continuing, Borrower shall immediately deliver all payments on and proceeds of Accounts to an account maintained with Bank to be applied (i) prior to an Event of Default, pursuant to the terms of Section 2.5(b) hereof, and (ii) after the occurrence and during the continuance of an Event of Default, pursuant to the terms of Section 9.4 hereof

6.4                               Taxes; Pensions.  Timely file, and require each of its Subsidiaries to timely file, all required tax returns and reports and timely pay, and require each of its Subsidiaries to timely pay, all foreign, federal, state and local taxes, assessments, deposits and contributions owed by Borrower and each of its Subsidiaries, except for (i) deferred payment of any taxes contested pursuant to the terms of Section 5.9 hereof, and (ii) the failure to timely pay state and local taxes in an aggregate amount not to exceed $150,000.  Borrower shall deliver to Bank, on demand, appropriate certificates attesting to such payments, and pay all amounts necessary to fund all present pension, profit sharing and deferred compensation plans in accordance with their terms.

6.5                               Insurance.  Keep its business and the Collateral insured for risks and in amounts standard for companies in Borrower’s industry and location and as Bank may reasonably request.  Insurance policies shall be in a form, with companies, and in amounts that are satisfactory to Bank.  All property policies shall have a lender’s loss payable endorsement showing Bank as a lender loss payee and waive subrogation against Bank.  All liability policies shall show, or have endorsements showing, Bank as an additional insured.  All policies (or their respective endorsements) shall provide that the insurer shall give Bank at least twenty (20) days notice before canceling, amending, or declining to renew its policy.  At Bank’s request, Borrower shall deliver certified copies of policies and evidence of all premium payments.  Except as otherwise provided in Section 2.1.1(c), proceeds payable under any policy shall, at Bank’s option, be payable to Bank on account of the Obligations.  If Borrower fails to obtain insurance as required under this Section 6.5 or to pay any amount or furnish any required proof of payment to third persons and Bank, Bank may make all or part of such payment or obtain such insurance policies required in this Section 6.5, and take any action under the policies Bank deems prudent.

6.6                               Operating Accounts.

(a)                                  Maintain its primary operating and other deposit accounts and securities accounts with Bank and Bank’s Affiliates.

6.7                               Financial Covenants.  Maintain at all times, to be tested as of the last day of each month, unless otherwise noted, with respect to Borrower:

(a)                                  Liquidity.  Borrower’s unrestricted cash and Cash Equivalents at Bank plus net accounts receivable shall be at least two times the amount of all outstanding Indebtedness of Borrower.

6.8                               Protection of Intellectual Property Rights.

(a)                                  (i) Protect, defend and maintain the validity and enforceability of its Intellectual Property that is material to its business; (ii) promptly advise Bank in writing of material infringements of its Intellectual Property that is material to its business; and (iii) not allow any Intellectual Property material to Borrower’s business to be abandoned, forfeited or dedicated to the public without Bank’s written consent.

6.9                               Litigation Cooperation.  From the date hereof and continuing through the termination of this Agreement, make available to Bank, without expense to Bank, Borrower and its officers, employees and agents and Borrower’s books and records, to the extent that Bank may deem them reasonably necessary to prosecute or defend any third-party suit or proceeding instituted by or against Bank with respect to any Collateral or relating to Borrower.

11

6.10                        Access to Collateral; Books and Records.  Allow Bank, or its agents, to inspect the Collateral and audit and copy Borrower’s Books.  Such inspections or audits shall be conducted no more often than once every twelve (12) months unless an Event of Default has occurred and is continuing.  The foregoing inspections and audits shall be at Borrower’s expense.

6.11                        Further Assurances.  Execute any further instruments and take further action as Bank reasonably requests to perfect or continue Bank’s Lien in the Collateral or to effect the purposes of this Agreement.

7                                         NEGATIVE COVENANTS

From the Effective Date through and until the termination of this Agreement pursuant to Section 12.11, Borrower shall not do any of the following without Bank’s prior written consent:

7.1                               Dispositions.  Convey, sell, lease, transfer, assign, or otherwise dispose of (collectively, “Transfer”), or permit any of its Subsidiaries to Transfer, all or any part of its business or property, except for Transfers (a) of Inventory in the ordinary course of business; (b) of unneeded, worn-out or obsolete Equipment that does not constitute Financed Equipment; (c) in connection with Permitted Liens and Permitted Investments; and (d) of non-exclusive licenses for the use of the property of Borrower or its Subsidiaries in the ordinary course of business.

7.2                               Changes in Business, Management, Ownership, or Business Locations.  (a) Engage in or permit any of its Subsidiaries to engage in any business other than the businesses currently engaged in by Borrower and such Subsidiary, as applicable, or reasonably related thereto; (b) liquidate or dissolve; or (c) (i) have a change in Borrower’s chief executive officer or Borrower’s chief financial officer either (1) both within 6 months of each other or (2) otherwise, unless a replacement chief executive officer or chief financial officer, as the case may be, is approved by Borrower’s Board of Directors within 180 days of the date of the termination of the chief executive officer or chief financial officer, as the case may be (provided, however, Bank shall have no obligation to fund any Credit Extension before any such replacement has been made); or (ii) enter into any transaction or series of related transactions in which the stockholders of Borrower who were not stockholders immediately prior to the first such transaction own more than 40% of the voting stock of Borrower immediately after giving effect to such transaction or related series of such transactions (other than by the sale of Borrower’s equity securities in a public offering or to venture capital investors so long as Borrower identifies to Bank the venture capital investors prior to the closing of the transaction and provides to Bank a description of the material terms of the transaction).

Borrower shall not, without at least thirty (30) days prior written notice to Bank: (l) add any new offices or business locations, including warehouses (unless such new offices or business locations contain less than One Hundred Thousand Dollars ($100,000) in Borrower’s assets or property) or deliver any portion of the Collateral valued, individually or in the aggregate, in excess of Two Hundred Thousand Dollars ($200,000) to a bailee at a location other than to a bailee and at a location already disclosed in the Perfection Certificate, (2) change its jurisdiction of organization, (3) change its organizational structure or type, (4) change its legal name, or (5) change any organizational number (if any) assigned by its jurisdiction of organization.  If Borrower intends to deliver any portion of the Collateral valued, individually or in the aggregate, in excess of Two Hundred Thousand Dollars ($200,000) to a bailee, and Bank and such bailee are not already parties to a bailee agreement governing both the Collateral and the location to which Borrower intends to deliver the Collateral, then Borrower will first receive the written consent of Bank, and such bailee shall execute and deliver a bailee agreement in form and substance satisfactory to Bank in its sole discretion.

7.3                               Mergers or Acquisitions.  Merge or consolidate, or permit any of its Subsidiaries to merge or consolidate, with any other Person, or acquire, or permit any of its Subsidiaries to acquire, all or substantially all of the capital stock or property of another Person, except: (i) a Subsidiary may merge or consolidate into another Subsidiary or into Borrower, and (ii) acquisitions by Borrower where (a) total consideration for all such transactions consists of cash consideration and/or capital stock; (b) no Event of Default has occurred and is continuing or would exist after giving effect to the transactions; (c) Borrower is in compliance with all of the terms and conditions of this Agreement on a pro forma basis; and (d) Borrower is the surviving legal entity.

7.4                               Indebtedness.  Create, incur, assume, or be liable for any Indebtedness, or permit any Subsidiary to do so, other than Permitted Indebtedness.

12

7.5                               Encumbrance.  Create, incur, allow, or suffer any Lien on any of its property, or assign or convey any right to receive income, including the sale of any Accounts, or permit any of its Subsidiaries to do so, except for Permitted Liens, permit any Collateral not to be subject to the first priority security interest granted herein, or enter into any agreement, document, instrument or other arrangement (except with or in favor of Bank) with any Person which directly or indirectly prohibits or has the effect of prohibiting Borrower or any Subsidiary from assigning, mortgaging, pledging, granting a security interest in or upon, or encumbering any of Borrower’s or any Subsidiary’s Intellectual Property, except as is otherwise permitted in Section 7.1 hereof and the definition of “Permitted Liens” herein.

7.6                               Maintenance of Collateral Accounts.  Maintain any Collateral Account except pursuant to the terms of Section 6.6 hereof.

7.7                               Distributions; Investments.  (a) Pay any dividends or make any distribution or payment or redeem, retire or purchase any capital stock provided that (i) Borrower may convert any of its convertible securities into other securities pursuant to the terms of such convertible securities or otherwise in exchange thereof, (ii) Borrower may pay dividends solely in common stock; and (iii) Borrower may repurchase the stock of former employees or consultants pursuant to stock repurchase agreements so long as an Event of Default does not exist at the time of such repurchase and would not exist after giving effect to such repurchase, provided such repurchase does not exceed in the aggregate of Fifty Thousand Dollars ($50,000) per fiscal year; or (b) directly or indirectly make any Investment other than Permitted Investments, or permit any of its Subsidiaries to do so.

7.8                               Transactions with Affiliates.  Directly or indirectly enter into or permit to exist any material transaction with any Affiliate of Borrower, except for transactions that are in the ordinary course of Borrower’s business, upon fair and reasonable terms that are no less favorable to Borrower than would be obtained in an arm’s length transaction with a non-affiliated Person.

7.9                               Subordinated Debt.  (a) Make or permit any payment on any Subordinated Debt, except under the terms of the subordination, intercreditor, or other similar agreement to which such Subordinated Debt is subject, or (b) amend any provision in any document relating to the Subordinated Debt which would increase the amount thereof or adversely affect the subordination thereof to Obligations owed to Bank.

7.10                        Compliance.  Become an “investment company” or a company controlled by an “investment company”, under the Investment Company Act of 1940, as amended, or undertake as one of its important activities extending credit to purchase or carry margin stock (as defined in Regulation U of the Board of Governors of the Federal Reserve System), or use the proceeds of any Credit Extension for that purpose; fail to meet the minimum funding requirements of ERISA, permit a Reportable Event or Prohibited Transaction, as defined in ERISA, to occur; fail to comply with the Federal Fair Labor Standards Act or violate any other law or regulation, if the violation could reasonably be expected to have a material adverse effect on Borrower’s business, or permit any of its Subsidiaries to do so; withdraw or permit any Subsidiary to withdraw from participation in, permit partial or complete termination of, or permit the occurrence of any other event with respect to, any present pension, profit sharing and deferred compensation plan which could reasonably be expected to result in any liability of Borrower, including any liability to the Pension Benefit Guaranty Corporation or its successors or any other governmental agency.

8                                         EVENTS OF DEFAULT

Any one of the following shall constitute an event of default (an “Event of Default”) under this Agreement:

8.1                               Payment Default.  Borrower fails to (a) make any payment of principal or interest on any Credit Extension on its due date, or (b) pay any other Obligations within three (3) Business Days after such Obligations are due and payable (which three (3) Business Day cure period shall not apply to payments due on the Equipment Maturity Date).  During the cure period, the failure to make or pay any payment specified under clause (b) hereunder is not an Event of Default (but no Credit Extension will be made during the cure period);

8.2                               Covenant Default.

(a) Borrower fails or neglects to perform any obligation in Sections 6.3, 6.5, 6.6, 6.7 or violates any covenant in Section 7; or

13

(b) Borrower fails or neglects to perform any obligation in Section 6.2 and such failure or neglect continues for more than five (5) days after the occurrence thereof (but no Credit Extensions shall be made during such cure period); or

(c) Borrower fails or neglects to perform, keep, or observe any other term, provision, condition, covenant or agreement contained in this Agreement or any Loan Documents, and as to any default (other than those specified in this Section 8) under such other term, provision, condition, covenant or agreement that can be cured, has failed to cure the default within ten (10) days after the occurrence thereof; provided, however, that if the default cannot by its nature be cured within the ten (10) day period or cannot after diligent attempts by Borrower be cured within such ten (10) day period, and such default is likely to be cured within a reasonable time, then Borrower shall have an additional period (which shall not in any case exceed thirty (30) days) to attempt to cure such default, and within such reasonable time period the failure to cure the default shall not be deemed an Event of Default (but no Credit Extensions shall be made during such cure period).  Cure periods provided under this section shall not apply, among other things, to any other covenants set forth in clauses (a) and (b) above;

8.3                               Material Adverse Change.  A Material Adverse Change occurs;

8.4                               Attachment; Levy; Restraint on Business.

(a) (i) The service of process seeking to attach, by trustee or similar process, any funds of Borrower or of any entity under the control of Borrower (including a Subsidiary) on deposit or otherwise maintained with Bank or any Bank Affiliate, or (ii) a notice of lien or levy is filed against any of Borrower’s assets by any government agency, and the same under subclauses (i) and (ii) hereof are not, within ten (10) days after the occurrence thereof, discharged or stayed (whether through the posting of a bond or otherwise); provided, however, no Credit Extensions shall be made during any ten (10) day cure period; or

(b) (i) any material portion of Borrower’s assets is attached, seized, levied on, or comes into possession of a trustee or receiver, or (ii) any court order enjoins, restrains, or prevents Borrower from conducting any material part of its business;

8.5                               Insolvency.  (a) Borrower is unable to pay its debts (including trade debts) as they become due or otherwise becomes insolvent; (b) Borrower begins an Insolvency Proceeding; or (c) an Insolvency Proceeding is begun against Borrower and not dismissed or stayed within thirty (30) days (but no Credit Extensions shall be made while of any of the conditions described in clause (a) exist and/or until any Insolvency Proceeding is dismissed);

8.6                               Other Agreements.  There is, under any agreement to which Borrower or any Guarantor is a party with a third party or parties, (a) any default resulting in a right by such third party or parties, whether or not exercised, to accelerate the maturity of any Indebtedness in an amount individually or in the aggregate in excess of One Million Dollars ($1,000,000); or (b) any default by Borrower or Guarantor, the result of which could have a material adverse effect on Borrower’s or any Guarantor’s business;

8.7                               Judgments.  One or more final judgments, orders, or decrees for the payment of money in an amount, individually or in the aggregate, of at least Two Hundred Fifty Thousand Dollars ($250,000) (not covered by independent third-party insurance as to which liability has been accepted by such insurance carrier) shall be rendered against Borrower and the same are not, within ten (10) days after the entry thereof, discharged or execution thereof stayed or bonded pending appeal, or such judgments are not discharged prior to the expiration of any such stay (provided that no Credit Extensions will be made prior to the discharge, stay, or bonding of such judgment, order, or decree);

8.8                               Misrepresentations.  Borrower or any Person acting for Borrower makes any representation, warranty, or other statement now or later in this Agreement, any Loan Document or in any writing delivered to Bank or to induce Bank to enter this Agreement or any Loan Document, and such representation, warranty, or other statement is incorrect in any material respect when made; or

8.9                               Subordinated Debt.  Any document, instrument, or agreement evidencing the subordination of any Subordinated Debt shall for any reason be revoked or invalidated or otherwise cease to be in full force and effect, any Person shall be in breach thereof or contest in any manner the validity or enforceability thereof or deny that it has any further liability or obligation thereunder, or the Obligations shall for any reason be subordinated or shall not have the priority contemplated by this Agreement;

14

9                                         BANK’S RIGHTS AND REMEDIES

9.1                               Rights and Remedies.  While an Event of Default occurs and continues Bank may, without notice or demand, do any or all of the following:

(a)                                  declare all Obligations immediately due and payable (but if an Event of Default described in Section 8.5 occurs all Obligations are immediately due and payable without any action by Bank);

(b)                                 stop advancing money or extending credit for Borrower’s benefit under this Agreement or under any other agreement between Borrower and Bank;

(c)                                  settle or adjust disputes and claims directly with Account Debtors for amounts on terms and in any order that Bank considers advisable, notify any Person owing Borrower money of Bank’s security interest in such funds, and verify the amount of such account;

(d)                                 make any payments and do any acts it considers necessary or reasonable to protect the Collateral and/or its security interest in the Collateral.  Borrower shall assemble the Collateral if Bank requests and make it available as Bank designates.  Bank may enter premises where the Collateral is located, take and maintain possession of any part of the Collateral, and pay, purchase, contest, or compromise any Lien which appears to be prior or superior to its security interest and pay all expenses incurred.  Borrower grants Bank a license to enter and occupy any of its premises, without charge, to exercise any of Bank’s rights or remedies;

(e)                                  apply to the Obligations any (i) balances and deposits of Borrower it holds, or (ii) any amount held by Bank owing to or for the credit or the account of Borrower;

(f)                                    ship, reclaim, recover, store, finish, maintain, repair, prepare for sale, advertise for sale, and sell the Collateral.  Bank is hereby granted a non-exclusive, royalty-free license or other right to use, without charge, Borrower’s labels, Patents, Copyrights, mask works, rights of use of any name, trade secrets, trade names, Trademarks, and advertising matter, or any similar property as it pertains to the Collateral, in completing production of, advertising for sale, and selling any Collateral and, in connection with Bank’s exercise of its rights under this Section, Borrower’s rights under all licenses and all franchise agreements inure to Bank’s benefit;

(g)                                 place a “hold” on any account maintained with Bank and/or deliver a notice of exclusive control, any entitlement order, or other directions or instructions pursuant to any control agreement or similar agreements providing control of any Collateral;

(h)                                 demand and receive possession of Borrower’s Books; and

(i)                                     exercise all rights and remedies available to Bank under the Loan Documents or at law or equity, including all remedies provided under the Code (including disposal of the Collateral pursuant to the terms thereof).

9.2                               Power of Attorney.  Borrower hereby irrevocably appoints Bank as its lawful attorney-in-fact, exercisable upon the occurrence and during the continuance of an Event of Default, to: (a) endorse Borrower’s name on any checks or other forms of payment or security; (b) sign Borrower’s name on any invoice or bill of lading for any Account or drafts against Account Debtors; (c) settle and adjust disputes and claims about the Accounts directly with Account Debtors, for amounts and on terms Bank determines reasonable; (d) make, settle, and adjust all claims under Borrower’s insurance policies; (e) pay, contest or settle any Lien, charge, encumbrance, security interest, and adverse claim in or to the Collateral, or any judgment based thereon, or otherwise take any action to terminate or discharge the same; and (f) transfer the Collateral into the name of Bank or a third party as the Code permits.  Borrower hereby appoints Bank as its lawful attorney-in-fact to sign Borrower’s name on any documents necessary to perfect or continue the perfection of Bank’s security interest in the Collateral regardless of whether an Event of Default has occurred until all Obligations have been satisfied in full and Bank is under no further obligation to make Credit Extensions hereunder.  Bank’s foregoing appointment as Borrower’s attorney in fact, and all of Bank’s rights and powers, coupled with an interest, are irrevocable until all Obligations have been fully repaid and performed and Bank’s obligation to provide Credit Extensions terminates.

9.3                               Protective Payments.  If Borrower fails to obtain the insurance called for by Section 6.5 or fails to pay any premium thereon or fails to pay any other amount which Borrower is obligated to pay under this

15

Agreement or any other Loan Document, Bank may obtain such insurance or make such payment, and all amounts so paid by Bank are Bank Expenses and immediately due and payable, bearing interest at the then highest rate applicable to the Obligations, and secured by the Collateral.  Bank will make reasonable efforts to provide Borrower with notice of Bank obtaining such insurance at the time it is obtained or within a reasonable time thereafter.  No payments by Bank are deemed an agreement to make similar payments in the future or Bank’s waiver of any Event of Default.

9.4                               Application of Payments and Proceeds Upon Default.  If an Event of Default has occurred and is continuing, Bank may apply any funds in its possession, whether from Borrower account balances, payments, proceeds realized as the result of any collection of Accounts or other disposition of the Collateral, or otherwise, to the Obligations in such order as Bank shall determine in its sole discretion.  Any surplus shall be paid to Borrower or other Persons legally entitled thereto; Borrower shall remain liable to Bank for any deficiency.  If Bank, in its good faith business judgment, directly or indirectly enters into a deferred payment or other credit transaction with any purchaser at any sale of Collateral, Bank shall have the option, exercisable at any time, of either reducing the Obligations by the principal amount of the purchase price or deferring the reduction of the Obligations until the actual receipt by Bank of cash therefor.

9.5                               Bank’s Liability for Collateral.  So long as Bank complies with reasonable banking practices regarding the safekeeping of the Collateral in the possession or under the control of Bank, Bank shall not be liable or responsible for: (a) the safekeeping of the Collateral; (b) any loss or damage to the Collateral; (c) any diminution in the value of the Collateral; or (d) any act or default of any carrier, warehouseman, bailee, or other Person.  Borrower bears all risk of loss, damage or destruction of the Collateral.

9.6                               No Waiver; Remedies Cumulative.  Bank’s failure, at any time or times, to require strict performance by Borrower of any provision of this Agreement or any other Loan Document shall not waive, affect, or diminish any right of Bank thereafter to demand strict performance and compliance herewith or therewith.  No waiver hereunder shall be effective unless signed by the party granting the waiver and then is only effective for the specific instance and purpose for which it is given.  Bank’s rights and remedies under this Agreement and the other Loan Documents are cumulative.  Bank has all rights and remedies provided under the Code, by law, or in equity.  Bank’s exercise of one right or remedy is not an election and shall not preclude Bank from exercising any other remedy under this Agreement or other remedy available at law or in equity, and Bank’s waiver of any Event of Default is not a continuing waiver.  Bank’s delay in exercising any remedy is not a waiver, election, or acquiescence.

9.7                               Demand Waiver.  Borrower waives demand, notice of default or dishonor, notice of payment and nonpayment, notice of any default, nonpayment at maturity, release, compromise, settlement, extension, or renewal of accounts, documents, instruments, chattel paper, and guarantees held by Bank on which Borrower is liable.

9.8                               Discontinuance of an Event of Default.  Subsequent to the occurrence of a specific Event of Default, in the event that Borrower believes that such specific Event of Default is no longer continuing, it may request that Bank confirm in writing to Borrower that Bank considers that such specific Event of Default has discontinued and that Bank will not seek to claim or to enforce any remedies based thereon.  Bank shall make such decision in its sole and unfettered discretion.

10                                  NOTICES

All notices, consents, requests, approvals, demands, or other communication by any party to this Agreement or any other Loan Document must be in writing and shall be deemed to have been validly served, given, or delivered: (a) upon the earlier of actual receipt and three (3) Business Days after deposit in the U.S. mail, first class, registered or certified mail return receipt requested, with proper postage prepaid; (b) upon transmission, when sent by electronic mail or facsimile transmission; (c) one (l) Business Day after deposit with a reputable overnight courier with all charges prepaid; or (d) when delivered, if hand-delivered by messenger, all of which shall be addressed to the party to be notified and sent to the address, facsimile number, or email address indicated below.  Bank or Borrower may change its mailing or electronic mail address or facsimile number by giving the other party written notice thereof in accordance with the terms of this Section 10.

16

11                                  CHOICE OF LAW, VENUE, JURY TRIAL WAIVER, AND JUDICIAL REFERENCE

California law governs the Loan Documents without regard to principles of conflicts of law. Borrower and Bank each submit to the exclusive jurisdiction of the State and Federal courts in Santa Clara County, California; provided, however, that nothing in this Agreement shall be deemed to operate to preclude Bank from bringing suit or taking other legal action in any other jurisdiction to realize on the Collateral or any other security for the Obligations, or to enforce a judgment or other court order in favor of Bank.  Borrower expressly submits and consents in advance to such jurisdiction in any action or suit commenced in any such court, and Borrower hereby waives any objection that it may have based upon lack of personal jurisdiction, improper venue, or forum non conveniens and hereby consents to the granting of such legal or equitable relief as is deemed appropriate by such court.  Borrower hereby waives personal service of the summons, complaints, and other process issued in such action or suit and agrees that service of such summons, complaints, and other process may be made by registered or certified mail addressed to Borrower at the address set forth in, or subsequently provided by Borrower in accordance with, Section 10 of this Agreement and that service so made shall be deemed completed upon the earlier to occur of Borrower’s actual receipt thereof or three (3) days after deposit in the U.S. mails, proper postage prepaid.

TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, BORROWER AND BANK EACH WAIVE THEIR RIGHT TO A JURY TRIAL OF ANY CLAIM OR CAUSE OF ACTION ARISING OUT OF OR BASED UPON THIS AGREEMENT, THE LOAN DOCUMENTS OR ANY CONTEMPLATED TRANSACTION, INCLUDING CONTRACT, TORT, BREACH OF DUTY AND ALL OTHER CLAIMS.  THIS WAIVER IS A MATERIAL INDUCEMENT FOR BOTH PARTIES TO ENTER INTO THIS AGREEMENT.  EACH PARTY HAS REVIEWED THIS WAIVER WITH ITS COUNSEL.

WITHOUT INTENDING IN ANY WAY TO LIMIT THE PARTIES’ AGREEMENT TO WAIVE THEIR RESPECTIVE RIGHT TO A TRIAL BY JURY, if the above waiver of the right to a trial by jury is not enforceable, the parties hereto agree that any and all disputes or controversies of any nature between them arising at any time shall be decided by a reference to a private judge, mutually selected by the parties (or, if they cannot agree, by the Presiding Judge of the Santa Clara County, California Superior Court) appointed in accordance with California Code of Civil Procedure Section 638 (or pursuant to comparable provisions of federal law if the dispute falls within the exclusive jurisdiction of the federal courts), sitting without jury, in Santa Clara County, California; and the parties hereby submit to the jurisdiction of such court.  The reference proceedings shall be conducted pursuant to and in accordance with the provisions of California Code of Civil Procedure§§ 638 through 645.1, inclusive.  The private judge shall have the power, among others, to grant provisional relief, including without limitation, entering temporary restraining orders, issuing preliminary and permanent injunctions and appointing receivers.  All such proceedings shall be closed to the public and confidential and all records relating thereto shall be permanently sealed.  If during the course of any dispute, a party desires to seek provisional relief, but a judge has not been appointed at that point pursuant to the judicial reference procedures, then such party may apply to the Santa Clara County, California Superior Court for such relief.  The proceeding before the private judge shall be conducted in the same manner as it would be before a court under the rules of evidence applicable to judicial proceedings.  The parties shall be entitled to discovery which shall be conducted in the same manner as it would be before a court under the rules of discovery applicable to judicial proceedings.  The private judge shall oversee discovery and may enforce all discovery rules and orders applicable to judicial proceedings in the same manner as a trial court judge.  The parties agree that the selected or appointed private judge shall have the power to decide all issues in the action or proceeding, whether of fact or of law, and shall report a statement of decision thereon pursuant to California Code

17

of Civil Procedure § 644(a).  Nothing in this paragraph shall limit the right of any party at any time to exercise self-help remedies, foreclose against collateral, or obtain provisional remedies.  The private judge shall also determine all issues relating to the applicability, interpretation, and enforceability of this paragraph.

12                                  GENERAL PROVISIONS

12.1                        Successors and Assigns.  This Agreement binds and is for the benefit of the successors and permitted assigns of each party.  Borrower may not assign this Agreement or any rights or obligations under it without Bank’s prior written consent (which may be granted or withheld in Bank’s discretion).  Bank has the right, without the consent of or notice to Borrower, to sell, transfer, assign, negotiate, or grant participation in all or any part of, or any interest in, Bank’s obligations, rights, and benefits under this Agreement and the other Loan Documents (other than the Warrant, as to which assignment, transfer and other such actions are governed by the terms of the Warrant).

12.2                        Indemnification.  Borrower agrees to indemnify, defend and hold Bank and its directors, officers, employees, agents, attorneys, or any other Person affiliated with or representing Bank (each, an “Indemnified Person”) harmless against: (a) all obligations, demands, claims, and liabilities (collectively, “Claims”) claimed or asserted by any other party in connection with the transactions contemplated by the Loan Documents; and (b) all losses or expenses (including Bank Expenses) in any way suffered, incurred, or paid by such Indemnified Person as a result of, following from, consequential to, or arising from transactions between Bank and Borrower contemplated by the Loan Documents (including reasonable attorneys’ fees and expenses), except for Claims and/or losses directly caused by such Indemnified Person’s gross negligence or willful misconduct.

12.3                        Time of Essence.  Time is of the essence for the performance of all Obligations in this Agreement.

12.4                        Severability of Provisions.  Each provision of this Agreement is severable from every other provision in determining the enforceability of any provision.

12.5                        Correction of Loan Documents.  Bank may correct patent errors and fill in any blanks in the Loan Documents consistent with the agreement of the parties so long as Bank provides Borrower with written notice of such correction and allows Borrower at least ten (10) days to object to such correction.  In the event of such objection, such correction shall not be made except by an amendment signed by both Bank and Borrower.

12.6                        Amendments in Writing; Waiver; Integration.  No purported amendment or modification of any Loan Document, or waiver, discharge or termination of any obligation under any Loan Document, shall be enforceable or admissible unless, and only to the extent, expressly set forth in a writing signed by the party against which enforcement or admission is sought.  Without limiting the generality of the foregoing, no oral promise or statement, nor any action, inaction, delay, failure to require performance or course of conduct shall operate as, or evidence, an amendment, supplement or waiver or have any other effect on any Loan Document.  Any waiver granted shall be limited to the specific circumstance expressly described in it, and shall not apply to any subsequent or other circumstance, whether similar or dissimilar, or give rise to, or evidence, any obligation or commitment to grant any further waiver.  The Loan Documents represent the entire agreement about this subject matter and supersede prior negotiations or agreements.  All prior agreements, understandings, representations, warranties, and negotiations between the parties about the subject matter of the Loan Documents merge into the Loan Documents.

12.7                        Counterparts.  This Agreement may be executed in any number of counterparts and by different parties on separate counterparts, each of which, when executed and delivered, is an original, and all taken together, constitute one Agreement.

12.8                        Survival.  All covenants, representations and warranties made in this Agreement continue in full force until this Agreement has terminated pursuant to Section 12.11.  The obligation of Borrower in Section 12.2 to indemnify Bank shall survive until the statute of limitations with respect to such claim or cause of action shall have run.

12.9                        Confidentiality.  In handling any confidential information, Bank shall exercise the same degree of care that it exercises for its own proprietary information, but disclosure of information may be made: (a) to Bank’s Subsidiaries or Affiliates (such Subsidiaries and Affiliates, together with Bank, collectively, “Bank Entities”); (b) to prospective transferees or purchasers of any interest in the Credit Extensions (provided, however, Bank shall use its

18

best efforts to obtain any prospective transferee’s or purchaser’s agreement to the terms of this provision); (c) as required by law, regulation, subpoena, or other order; (d) to Bank’s regulators or as otherwise required in connection with Bank’s examination or audit; (e) as Bank considers appropriate in exercising remedies under the Loan Documents; and (f) to third-party service providers of Bank so long as such service providers have executed a confidentiality agreement with Bank with terms no less restrictive than those contained herein.  Confidential information does not include information that is either: (i) in the public domain or in Bank’s possession when disclosed to Bank, or becomes part of the public domain after disclosure to Bank; or (ii) disclosed to Bank by a third party if Bank does not know that the third party is prohibited from disclosing the information.

Bank Entities may use the confidential information for reporting purposes and the development and distribution of databases and market analyses so long as such confidential information is aggregated and anonymized prior to distribution unless otherwise expressly prohibited by Borrower.  The provisions of the immediately preceding sentence shall survive the termination of this Agreement.

12.10                 Attorneys’ Fees, Costs and Expenses.  In any action or proceeding between Borrower and Bank arising out of or relating to the Loan Documents, the prevailing party shall be entitled to recover its reasonable attorneys’ fees and other costs and expenses incurred, in addition to any other relief to which it may be entitled.

12.11                 Termination.  Upon the indefeasible payment in full in cash of the Obligations (other than inchoate indemnity obligations) and if Bank has no further obligations to make any Credit Extension, either because the availability of Credit Extensions and Draw Period have elapsed hereunder or Borrower has acknowledged and agreed in writing satisfactory to Bank that there is no further obligation of Bank to fund hereunder, this Agreement shall terminate except for Borrower’s indemnity obligations hereunder which shall survive until all applicable statute of limitations periods with respect to actions that may be brought against Bank has run.  lf this Agreement is terminated as set forth in the preceding sentence, Bank’s Lien granted hereunder in the Collateral shall terminate and Bank shall, at Borrower’s sole cost and expense, take all actions and execute all documents reasonably requested by Borrower to evidence or to more fully effect such termination or to release its Liens granted hereunder in the Collateral and all rights therein shall revert to Borrower.

12.12                 Electronic Execution of Documents.  The words “execution,” “signed,” “signature” and words of like import in any Loan Document shall be deemed to include electronic signatures or the keeping of records in electronic form, each of which shall be of the same legal effect, validity and enforceability as a manually executed signature or the use of a paper-based recordkeeping systems, as the case may be, to the extent and as provided for in any applicable law, including, without limitation, any state law based on the Uniform Electronic Transactions Act.

12.13                 Captions.  The headings used in this Agreement are for convenience only and shall not affect the interpretation of this Agreement.

12.14                 Construction of Agreement.  The parties mutually acknowledge that they and their attorneys have participated in the preparation and negotiation of this Agreement.  In cases of uncertainty this Agreement shall be construed without regard to which of the parties caused the uncertainty to exist.

12.15                 Relationship.  The relationship of the parties to this Agreement is determined solely by the provisions of this Agreement.  The parties do not intend to create any agency, partnership, joint venture, trust, fiduciary or other relationship with duties or incidents different from those of parties to an arm’s-length contract.

12.16                 Third Parties.  Nothing in this Agreement, whether express or implied, is intended to: (a) confer any benefits, rights or remedies under or by reason of this Agreement on any persons other than the express parties to it and their respective permitted successors and assigns; (b) relieve or discharge the obligation or liability of any person not an express party to this Agreement; or (c) give any person not an express party to this Agreement any right of subrogation or action against any party to this Agreement.

13                                  DEFINITIONS

13.1                        Definitions.  As used in the Loan Documents, the word “shall” is mandatory, the word “may” is permissive, the word “or” is not exclusive, the words “includes” and “including” are not limiting, the singular includes the plural, and numbers denoting amounts that are set off in brackets are negative.  As used in this Agreement, the following capitalized terms have the following meanings:

19

“Account” is any “account” as defined in the Code with such additions to such term as may hereafter be made, and includes, without limitation, all accounts receivable and other sums owing to Borrower.

“Account Debtor” is any “account debtor” as defined in the Code with such additions to such term as may hereafter be made.

“Additional Costs” is defined in Section 3.8.

“Affiliate” is, with respect to any Person, each other Person that owns or controls directly or indirectly the Person, any Person that controls or is controlled by or is under common control with the Person, and each of that Person’s senior executive officers, directors, partners and, for any Person that is a limited liability company, that Person’s managers and members.

“Agreement” is defined in the preamble hereof.

“Bank” is defined in the preamble hereof.

“Bank Expenses” are all audit fees and expenses, costs, and expenses (including reasonable attorneys’ fees and expenses) for preparing, amending, negotiating, administering, defending and enforcing the Loan Documents (including, without limitation, those incurred in connection with appeals or Insolvency Proceedings) or otherwise incurred with respect to Borrower.

“Borrower” is defined in the preamble hereof.

“Borrower’s Books” are all Borrower’s books and records including ledgers, federal and state tax returns, records regarding Borrower’s assets or liabilities, the Collateral, business operations or financial condition, and all computer programs or storage or any equipment containing such information.

“Borrowing Resolutions” are, with respect to any Person, those resolutions substantially in the form attached hereto as Exhibit C.

“Business Day” is any day that is not a Saturday, Sunday or other day on which banking institutions in the State of California are authorized or required by law or other governmental action to close, except that if any determination of a “Business Day” shall relate to a LIBOR Advance, the term “Business Day” shall also mean a day on which dealings are carried on in the London interbank market.

“Cash Equivalents” means (a) marketable direct obligations issued or unconditionally guaranteed by the United States or any agency or any State thereof having maturities of not more than one (1) year from the date of acquisition; (b) commercial paper maturing no more than one (1) year after its creation and having the highest rating from either Standard & Poor’s Ratings Group or Moody’s Investors Service, Inc.; (c) Bank’s certificates of deposit issued maturing no more than one (1) year after issue; and (d) money market funds at least ninety-five percent (95%) of the assets of which constitute Cash Equivalents of the kinds described in clauses (a) through (c) of this definition.

“Code” is the Uniform Commercial Code, as the same may, from time to time, be enacted and in effect in the State of California; provided, that, to the extent that the Code is used to define any term herein or in any Loan Document and such term is defined differently in different Articles or Divisions of the Code, the definition of such term contained in Article or Division 9 shall govern; provided further, that in the event that, by reason of mandatory provisions of law, any or all of the attachment, perfection, or priority of, or remedies with respect to, Bank’s Lien on any Collateral is governed by the Uniform Commercial Code in effect in a jurisdiction other than the State of California, the term “Code” shall mean the Uniform Commercial Code as enacted and in effect in such other jurisdiction solely for purposes of the provisions thereof relating to such attachment, perfection, priority, or remedies and for purposes of definitions relating to such provisions.

“‘Collateral” is any and all properties, rights and assets of Borrower described on Exhibit A.

“Collateral Account” is any Deposit Account, Securities Account, or Commodity Account.

“Commodity Account” is any “commodity account” as defined in the Code with such additions to such term as may hereafter be made.

20

“Compliance Certificate” is that certain certificate in the form attached hereto as Exhibit D.

“Contingent Obligation” is, for any Person, any direct or indirect liability, contingent or not, of that Person for (a) any indebtedness, lease, dividend, letter of credit or other obligation of another such as an obligation, in each case, directly or indirectly guaranteed, endorsed, co-made, discounted or sold with recourse by that Person, or for which that Person is directly or indirectly liable; (b) any obligations for undrawn letters of credit for the account of that Person; and (c) all obligations from any interest rate, currency or commodity swap agreement, interest rate cap or collar agreement, or other agreement or arrangement designated to protect a Person against fluctuation in interest rates, currency exchange rates or commodity prices; but “Contingent Obligation” does not include endorsements in the ordinary course of business.  The amount of a Contingent Obligation is the stated or determined amount of the primary obligation for which the Contingent Obligation is made or, if not determinable, the maximum reasonably anticipated liability for it determined by the Person in good faith; but the amount may not exceed the maximum of the obligations under any guarantee or other support arrangement.

“Continuation Date” means any date on which Borrower continues a LIBOR Advance into another Interest Period.

“Conversion Date” means any date on which Borrower converts a Prime Rate Advance to a LIBOR Advance or a LIBOR Advance to a Prime Rate Advance.

“Copyrights” are any and all copyright rights, copyright applications, copyright registrations and like protections in each work or authorship and derivative work thereof, whether published or unpublished and whether or not the same also constitutes a trade secret.

“Credit Extension” is any Equipment Advance, or any other extension of credit by Bank for Borrower’s benefit.

“Default Rate” is defined in Section 2.3(c).

“Deposit Account” is any “deposit account” as defined in the Code with such additions to such term as may hereafter be made.

“Designated Deposit Account” is Borrower’s deposit account, account number                               , maintained with Bank.

“Dollars,” “dollars” or use of the sign “$’’ means only lawful money of the United States and not any other currency, regardless of whether that currency uses the “$” sign to denote its currency or may be readily converted into lawful money of the United States.

“Draw Period” is the period of time from the Effective Date through the earlier to occur of (a) the day twelve (12) months after the Effective Date, or (b) an Event of Default.

“Effective Date” is defined in the preamble hereof.

“Eligible Equipment” is the following to the extent it complies with all of Borrower’s representations and warranties to Bank, is acceptable to Bank in all respects, is located at Borrower’s headquarters or such other location of which Bank has approved in writing, and is subject to a first priority Lien in favor of Bank subject to Permitted Liens new and used: (a) general purpose equipment, computer equipment, office equipment, test and laboratory equipment, furnishings, subject to the limitations set forth herein, and (b) Other Equipment.

“Equipment” is all “equipment” as defined in the Code with such additions to such term as may hereafter be made, and includes without limitation all machinery, fixtures, goods, vehicles (including motor vehicles and trailers), and any interest in any of the foregoing.

“Equipment Advance” is defined in Section 2.1.1(a).

“Equipment Amortization Date” means, for each Equipment Advance, the day twelve (12) months after the Effective Date, or if such date is not the first day of the month, then the first day of the calendar month immediately following such date.

21

“Equipment Interest Only Period” means, for each Equipment Advance, the period of time commencing on its Funding Date through the day before the Equipment Amortization Date.

“Equipment Line” is an Equipment Advance or Equipment Advances in an aggregate original principal amount of up to Six Million Dollars ($6,000,000).

“Equipment Maturity Date” is means, for each Equipment Advance, the day forty eight (48) months after the Effective Date, or if such date is not the first day of the month, then the first day of the calendar month immediately following such date.

“ERISA” is the Employee Retirement Income Security Act of 1974, and its regulations.

“Event of Default” is defined in Section 8.

“Event of Loss” is defined in Section 2.1.l(c).

“Exchange Act” is the Securities Exchange Act of 1934, as amended.

“Financed Equipment” is all present and future Eligible Equipment in which Borrower has any interest which is financed by an Equipment Advance.

“Funding Date” is any date on which a Credit Extension is made to or for the account of Borrower which shall be a Business Day.

“GAAP” is generally accepted accounting principles set forth in the opinions and pronouncements of the Accounting Principles Board of the American Institute of Certified Public Accountants and statements and pronouncements of the Financial Accounting Standards Board or in such other statements by such other Person as may be approved by a significant segment of the accounting profession, which are applicable to the circumstances as of the date of determination.

“General Intangibles” is all “general intangibles” as defined in the Code in effect on the date hereof with such additions to such term as may hereafter be made, and includes without limitation, all Intellectual Property, claims, income and other tax refunds, security and other deposits, payment intangibles, contract rights, options to purchase or sell real or personal property, rights in all litigation presently or hereafter pending (whether in contract, tort or otherwise), insurance policies (including without limitation key man, property damage, and business interruption insurance), payments of insurance and rights to payment of any kind.

“Governmental Approval” is any consent, authorization, approval, order, license, franchise, permit, certificate, accreditation, registration, filing or notice, of, issued by, from or to, or other act by or in respect of, any Governmental Authority.

“Governmental Authority” is any nation or government, any state or other political subdivision thereof, any agency, authority, instrumentality, regulatory body, court, central bank or other entity exercising executive, legislative, judicial, taxing, regulatory or administrative functions of or pertaining to government, any securities exchange and any self-regulatory organization.

“Guarantor” is any present or future guarantor of the Obligations.

“Indebtedness” is (a) indebtedness for borrowed money or the deferred price of property or services, such as reimbursement and other obligations for surety bonds and letters of credit, (b) obligations evidenced by notes, bonds, debentures or similar instruments, (c) capital lease obligations, and (d) Contingent Obligations.

“Indemnified Person” is defined in Section 12.2.

“Insolvency Proceeding” is any proceeding by or against any Person under the United States Bankruptcy Code, or any other bankruptcy or insolvency law, including assignments for the benefit of creditors, compositions, extensions generally with its creditors, or proceedings seeking reorganization, arrangement, or other relief.

“Intellectual Property” means all of Borrower’s right, title, and interest in and to the following:

22

(a)                                  its Copyrights, Trademarks and Patents;

(b)                                 any and all trade secrets and trade secret rights, including, without limitation, any rights to unpatented inventions, know-how, operating manuals;

(c)                                  any and all source code;

(d)                                 any and all design rights which may be available to Borrower;

(e)                                  any and all claims for damages by way of past, present and future infringement of any of the foregoing, with the right, but not the obligation, to sue for and collect such damages for said use or infringement of the Intellectual Property rights identified above; and

(f)                                    all amendments, renewals and extensions of any of the Copyrights, Trademarks or Patents.

“Interest Payment Date” means, with respect to any LIBOR Advance, the last day of each Interest Period applicable to such LIBOR Advance and, with respect to Prime Rate Advances, the first day of each month (or, if that day of the month does not fall on a Business Day, then on the first Business Day following such date), and each date a Prime Rate Advance is converted into a LIBOR Advance to the extent of the amount converted to a LIBOR Advance.

“Interest Period” means, as to any LIBOR Advance, the period commencing on the date of such LIBOR Advance, or on the conversion/continuation date on which the LIBOR Advance is converted into or continued as a LIBOR Advance, and ending on the date that is 1, 2 or 3 months thereafter, in each case as Borrower may elect in the applicable Notice of Borrowing or Notice of Conversion/Continuation; provided, however, that (a) no Interest Period with respect to any LIBOR Advance shall end later than its Equipment Maturity Date, (b) the last day of an Interest Period shall be determined in accordance with the practices of the LIBOR interbank market as from time to time in effect, (c) if any Interest Period would otherwise end on a day that is not a Business Day, that Interest Period shall be extended to the following Business Day unless, in the case of a LIBOR Advance, the result of such extension would be to carry such Interest Period into another calendar month, in which event such Interest Period shall end on the preceding Business Day, (d) any Interest Period pertaining to a LIBOR Advance that begins on the last Business Day of a calendar month (or on a day for which there is no numerically corresponding day in the calendar month at the end of such Interest Period) shall end on the last Business Day of the calendar month at the end of such Interest Period, and (e) interest shall accrue from and include the first Business Day of an Interest Period but exclude the last Business Day of such Interest Period.

“Interest Rate Determination Date” means each date for calculating the LIBOR for purposes of determining the interest rate in respect of an Interest Period.  The Interest Rate Determination Date shall be the second Business Day prior to the first day of the related Interest Period for a LIBOR Advance.

“Inventory” is all “inventory” as defined in the Code in effect on the date hereof with such additions to such term as may hereafter be made, and includes without limitation all merchandise, raw materials, parts, supplies, packing and shipping materials, work in process and finished products, including without limitation such inventory as is temporarily out of Borrower’s custody or possession or in transit and including any returned goods and any documents of title representing any of the above.

“Investment” is any beneficial ownership interest in any Person (including stock, partnership interest or other securities), and any loan, advance or capital contribution to any Person.

“LIBOR” means, for any Interest Rate Determination Date with respect to an Interest Period for any Equipment Advance to be made, continued as or converted into a LIBOR Advance, the rate of interest per annum determined by Bank to be the per annum rate of interest at which deposits in United States Dollars are offered to Bank in the London interbank market (rounded upward, if necessary, to the nearest 0.0001%) in which Bank customarily participates at 11:00 a.m. (local time in such interbank market) two (2) Business Days prior to the first day of such Interest Period for a period approximately equal to such Interest Period and in an amount approximately equal to the amount of such Equipment Advance.

23

“LIBOR Advance” means an Equipment Advance that bears interest based at the LIBOR Rate plus the LIBOR Rate Margin.

“LIBOR Rate” means, for each Interest Period in respect of LIBOR Advances comprising part of the same Equipment Advance, an interest rate per annum (rounded upward, if necessary, to the nearest 0.0001%) equal to LIBOR for such Interest Period divided by one (1) minus the Reserve Requirement for such Interest Period.

“LIBOR Rate Margin” is three hundred (300) basis points or 3%.

“Lien” is a claim, mortgage, deed of trust, levy, charge, pledge, security interest or other encumbrance of any kind, whether voluntarily incurred or arising by operation of law or otherwise against any property.

“Loan Documents” are, collectively, this Agreement, the Perfection Certificate, any note, or notes or guaranties executed by Borrower or any Guarantor, and any other present or future agreement between Borrower any Guarantor and/or for the benefit of Bank in connection with this Agreement, all as amended, restated, or otherwise modified.

“Loan Supplement” is the form attached hereto as Exhibit E.

“Material Adverse Change” is (a) a material impairment in the perfection or priority of Bank’s Lien in the Collateral or in the value of such Collateral; (b) a material adverse change in the business, operations, or financial condition of Borrower; or (c) a material impairment of the prospect of repayment of any portion of the Obligations.

“Monthly Financial Statements” is defined in Section 6.2(a).

‘‘Notice of Borrowing” means a notice given by Borrower to Bank in accordance with Section 3.2(a), substantially in the form of Exhibit F, with appropriate insertions.

“Notice of Conversion/Continuation” means a notice given by Borrower to Bank in accordance with Section 3.6, substantially in the form of Exhibit G, with appropriate insertions.

“Obligations” are Borrower’s obligations to pay when due any debts, principal, interest, Bank Expenses and other amounts Borrower owes Bank now or later, whether under this Agreement, the Loan Documents, or otherwise, including, without limitation, all obligations relating to letters of credit (including reimbursement obligations for drawn and undrawn letters of credit), cash management services, and foreign exchange contracts, if any, and including interest accruing after Insolvency Proceedings begin and debts, liabilities, or obligations of Borrower assigned to Bank, and to perform Borrower’s duties under the Loan Documents.

“Operating Documents” are, for any Person, such Person’s formation documents, as certified with the Secretary of State of such Person’s state of formation on a date that is no earlier than 30 days prior to the Effective Date, and, (a) if such Person is a corporation, its bylaws in current form, (b) if such Person is a limited liability company, its limited liability company agreement (or similar agreement), and (c) if such Person is a partnership, its partnership agreement (or similar agreement), each of the foregoing with all current amendments or modifications thereto.

“Other Equipment” is leasehold improvements, intangible property such as computer software and software licenses, equipment specifically designed or manufactured for Borrower, other intangible property, limited use property and other similar property and soft costs approved by Bank, including taxes, shipping, warranty charges, freight discounts and installation expenses.

“Patents” means all patents, patent applications and like protections including without limitation improvements, divisions, continuations, renewals, reissues, extensions and continuations-in-part of the same.

“Payment/Advance Form” is that certain form attached hereto as Exhibit B. 

“Payment Date” is defined in Section 2.1.1 (b).

“Perfection Certificate” is defined in Section 5.1.

24

“Permitted Indebtedness” is:

(a)                                  Borrower’s Indebtedness to Bank under this Agreement and the other Loan Documents;

(b)                                 Indebtedness existing on the Effective Date and shown on the Perfection Certificate;

(c)                                  Subordinated Debt;

(d)                                 unsecured Indebtedness to trade creditors incurred in the ordinary course of business;

(e)                                  Indebtedness incurred as a result of endorsing negotiable instruments received in the ordinary course of business;

(f)                                    Indebtedness secured by Liens permitted under clauses (a) and (c) of the definition of “Permitted Liens” hereunder;

(g)                                 Guaranties of real property lease obligations of Subsidiaries; and

(h)                                 extensions, refinancings, modifications, amendments and restatements of any items of Permitted Indebtedness (a) through (f) above, provided that the principal amount thereof is not increased or the terms thereof are not modified to impose more burdensome terms upon Borrower or its Subsidiary, as the case may be.

“Permitted Investments” are:

(a)                                  Investments (including, without limitation, Subsidiaries) existing on the Effective Date and shown on the Perfection Certificate and;

(b)                                 (i) Investments consisting of Cash Equivalents, and (ii) any Investments permitted by Borrower’s investment policy, as amended from time to time, provided that such investment policy (and any such amendment thereto) has been approved in writing by Bank;

(c)                                  Investments consisting of the endorsement of negotiable instruments for deposit or collection or similar transactions in the ordinary course of Borrower;

(d)                                 Investments consisting of deposit accounts in compliance with Section 6.6;

(e)                                  Investments accepted in connection with Transfers permitted by Section 7.1;

(f)                                    Investments (i) by Borrower in Subsidiaries not to exceed Five Hundred Thousand Dollars ($500,000) in the aggregate in any fiscal year and (ii) by Subsidiaries in other Subsidiaries or in Borrower;

(g)                                 Investments consisting of (i) travel advances and employee relocation loans and other employee loans and advances in the ordinary course of business, and (ii) loans to employees, officers or directors relating to the purchase of equity securities of Borrower or its Subsidiaries pursuant to employee stock purchase plans or agreements approved by Borrower’s Board of Directors;

(h)                                 Investments (including debt obligations) received in connection with the bankruptcy or reorganization of customers or suppliers and in settlement of delinquent obligations of, and other disputes with, customers or suppliers arising in the ordinary course of business; and

(i)                                     Investments consisting of notes receivable of, or prepaid royalties and other credit extensions, to customers and suppliers who are not Affiliates, in the ordinary course of business; provided that this paragraph (i) shall not apply to Investments of Borrower in any Subsidiary.

“Permitted Liens” are:

(a)                                  Liens: (i) existing on the Effective Date and shown on the Perfection Certificate on assets other than Financed Equipment, or (ii) arising under this Agreement and the other Loan Documents;

25

(b)                                 Liens for taxes, fees, assessments or other government charges or levies, either (i) not due and payable or (ii) being contested in good faith and for which Borrower maintains adequate reserves on its Books, provided that no notice of any such Lien has been filed or recorded under the Internal Revenue Code of 1986, as amended, and the Treasury Regulations adopted thereunder;

(c)                                  purchase money Liens (i) on Equipment (other than Financed Equipment) acquired or held by Borrower incurred for financing the acquisition of the Equipment securing no more than Five Hundred Thousand Dollars ($500,000) in the aggregate amount outstanding, or (ii) existing on Equipment (other than Financed Equipment) when acquired, if the Lien is confined to the property and improvements and the proceeds of the Equipment;

(d)                                 Liens of carriers, warehousemen, suppliers, or other Persons that are possessory in nature arising in the ordinary course of business so long as such Liens attach only to Inventory and which are not delinquent or remain payable without penalty or which are being contested in good faith and by appropriate proceedings which proceedings have the effect of preventing the forfeiture or sale of the property subject thereto;

(e)                                  Liens to secure payment of workers’ compensation, employment insurance, old-age pensions, social security and other like obligations incurred in the ordinary course of business (other than Liens imposed by ERISA);

(f)                                    Liens incurred in the extension, renewal or refinancing of the indebtedness secured by Liens described in (a) through (c), but any extension, renewal or replacement Lien must be limited to the property encumbered by the existing Lien and the principal amount of the indebtedness may not increase;

(g)                                 leases or subleases of real property granted in the ordinary course of Borrower’s business (or, if referring to another Person, in the ordinary course of such Person’s business), and leases, subleases, non-exclusive licenses or sublicenses of personal property (other than Intellectual Property) granted in the ordinary course of Borrower’s business (or, if referring to another Person, in the ordinary course of such Person’s business), if the leases, subleases, licenses and sublicenses do not prohibit granting Bank a security interest therein and any such Liens do not extend to or cover Financed Equipment;

(h)                                 non-exclusive licenses of Intellectual Property granted to third parties in the ordinary course of business;

(i)                                     Liens arising from attachments or judgments, orders, or decrees in circumstances not constituting an Event of Default under Sections 8.4 and 8.7 and junior to the Lien of Bank; and

(j)                                     Liens in favor of other financial institutions arising in connection with Borrower’s deposit and/or securities accounts held at such institutions, provided that Borrower is in compliance with Section 6.6.

“Person” is any individual, sole proprietorship, partnership, limited liability company, joint venture, company, trust, unincorporated organization, association, corporation, institution, public benefit corporation, firm, joint stock company, estate, entity or government agency.

“Prepayment Fee” means, in addition to the payment of any principal, interest, other expenses or fees then-owing, a termination fee in an amount equal to one percent (1%) of the then outstanding Obligations, provided that no Prepayment Fee shall be charged if the credit facility hereunder is replaced with a new facility from Bank.

“Prime Rate” is Bank’s most recently announced “prime rate,” even if it is not Bank’s lowest rate.

“Prime Rate Advance” means an Equipment Advance that bears interest based at the Prime Rate plus 0.50%.

“Registered Organization” is any “registered organization” as defined in the Code with such additions to such term as may hereafter be made.

“Regulatory Change” means, with respect to Bank, any change on or after the date of this Agreement in United States federal, state, or foreign laws or regulations, including Regulation D, or the adoption or making on or after such date of any interpretations, directives, or requests applying to a class of lenders including Bank, of or

26

under any United States federal or state, or any foreign laws or regulations (whether or not having the force of law) by any court or governmental or monetary authority charged with the interpretation or administration thereof.

“Repayment Period” as to each Equipment Advance, is a period of time equal to thirty six (36) consecutive months.

“Requirement of Law” is as to any Person, the organizational or governing documents of such Person, and any law (statutory or common), treaty, rule or regulation or determination of an arbitrator or a court or other Governmental Authority, in each case applicable to or binding upon such Person or any of its property or to which such Person or any of its property is subject.

“Reserve Requirement” means, for any Interest Period, the average maximum rate at which reserves (including any marginal, supplemental, or emergency reserves) are required to be maintained during such Interest Period under Regulation D against “Eurocurrency liabilities” (as such term is used in Regulation D) by member banks of the Federal Reserve System.  Without limiting the effect of the foregoing, the Reserve Requirement shall reflect any other reserves required to be maintained by Bank by reason of any Regulatory Change against (a) any category of liabilities which includes deposits by reference to which the LIBOR Rate is to be determined as provided in the definition of LIBOR or (b) any category of extensions of credit or other assets which include Equipment Advances.

“Responsible Officer” is any of the Chief Executive Officer, President, Chief Financial Officer and Controller of Borrower.

“Scheduled Payment” is defined in Section 2.1.1(b).

“SEC” shall mean the Securities and Exchange Commission, any successor thereto, and any analogous Governmental Authority.

“Securities Account” is any “securities account” as defined in the Code with such additions to such term as may hereafter be made.

“Subordinated Debt” is indebtedness incurred by Borrower subordinated to all of Borrower’s now or hereafter indebtedness to Bank (pursuant to a subordination, intercreditor, or other similar agreement in form and substance satisfactory to Bank entered into between Bank and the other creditor), on terms acceptable to Bank.

“Subsidiary” is, as to any Person, a corporation, partnership, limited liability company or other entity of which shares of stock or other ownership interests having ordinary voting power (other than stock or such other ownership interests having such power only by reason of the happening of a contingency) to elect a majority of the board of directors or other managers of such corporation, partnership or other entity are at the time owned, or the management of which is otherwise controlled, directly or indirectly through one or more intermediaries, or both, by such Person.  Unless the context otherwise requires, each reference to a Subsidiary herein shall be a reference to a Subsidiary of Borrower.

“Trademarks” means any trademark and servicemark rights, whether registered or not, applications to register and registrations of the same and like protections, and the entire goodwill of the business of Borrower connected with and symbolized by such trademarks.

“Transfer” is defined in Section 7.1.

[Signature page follows.]

27

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed as of the Effective Date.

[Signature page to Loan and Security Agreement]

EXHIBIT A- COLLATERAL DESCRIPTION

The Collateral consists of all right, title and interest of Borrower in and to the following personal property:

all Equipment financed by Bank, including the following:

and all Borrower’s Books relating to the foregoing, and any and all claims, rights and interests in any of the above and all substitutions for, additions, attachments, accessories, accessions and improvements to and replacements, products, proceeds and insurance proceeds of any or all of the foregoing.

Pursuant to the terms of a certain negative pledge arrangement with Bank, Borrower has agreed not to encumber any of its assets or property, including without limitation Intellectual Property, without Bank’s prior written consent, other than Liens that are specifically permitted under the Loan and Security Agreement between Bank and Borrower dated as of the Effective Date, as it may be amended from time to time.

EXHIBIT B — LOAN PAYMENT/ADVANCE REQUEST FORM

DEADLINE FOR SAME DAY PROCESSING IS NOON PACIFIC TIME*

* Unless otherwise provided for an Equipment Advance bearing interest at LIBOR.

EXHIBIT C

BORROWING RESOLUTIONS

SVBSilicon Valley Bank

            A Member of SVB Financial Group

CORPORATE BORROWING CERTIFICATE

I hereby certify as follows, as of the date set forth above:

1.  I am the Secretary, Assistant Secretary or other officer of the Borrower.  My title is as set forth below.

2.  Borrower’s exact legal name is set forth above.  Borrower is a corporation existing under the laws of the State of Delaware.

3.  Attached hereto are true, correct and complete copies of Borrower’s Certificate of Incorporation (including amendments), as filed with the Secretary of State of the state in which Borrower is incorporated as set forth in paragraph 2 above. Such Certificate of Incorporation have not been amended, annulled, rescinded, revoked or supplemented, and remain in full force and effect as of the date hereof.

4.  The following resolutions were duly and validly adopted by Borrower’s Board of Directors at a duly held meeting of such directors (or pursuant to a unanimous written consent or other authorized corporate action).  Such resolutions are in full force and effect as of the date hereof and have not been in any way modified, repealed, rescinded, amended or revoked, and Bank may rely on them until Bank receives written notice of revocation from Borrower.  In addition, these resolutions were approved by the requisite number of holders of Borrower’s preferred stock, as set forth in Borrower’s Certificate of Incorporation.

RESOLVED, that any one of the following officers or employees of Borrower, whose names, titles and signatures are below, may act on behalf of Borrower:

RESOLVED FURTHER, that any one of the persons designated above with a checked box beside his or her name may, from time to time, add or remove any individuals to and from the above list of persons authorized to act on behalf of Borrower.

RESOLVED FURTHER, that such individuals may, on behalf of Borrower:

Borrow Money.  Borrow money from Silicon Valley Bank (“Bank”).

Execute Loan Documents.  Execute any loan documents Bank requires.

Grant Security.  Grant Bank a security interest in any of Borrower’s assets.

Negotiate Items.  Negotiate or discount all drafts, trade acceptances, promissory notes, or other indebtedness in which Borrower has an interest and receive cash or otherwise use the proceeds.

Letters of Credit.  Apply for letters of credit from Bank.

Foreign Exchange Contracts.  Execute spot or forward foreign exchange contracts.

Issue Warrants.  Issue warrants for Borrower’s capital stock.

Further Acts.  Designate other individuals to request advances, pay fees and costs and execute other documents or agreements (including documents or agreement that waive Borrowers right to a jury trial) they believe to be necessary to effectuate such resolutions.

Resolved Further, that all acts authorized by the above resolutions and any prior acts relating thereto are ratified.

5.  The persons listed above are Borrower’s officers or employees with their titles and signatures shown next to their names.

***  If the Secretary, Assistant Secretary or other certifying officer executing above is designated by the resolutions set forth in paragraph 4 as one of the authorized signing officers, this Certificate must also be signed by a second authorized officer or director of Borrower.

I, the                                           of Borrower, hereby certify as to paragraphs l through 5 above, as of the date set forth above.

[print title]

EXHIBIT D

COMPLIANCE CERTIFICATE

The undersigned authorized officer of Proofpoint, Inc. (“Borrower”) certifies that under the terms and conditions of the Loan and Security Agreement between Borrower and Bank (the “Agreement”):

(1) Borrower is in complete compliance for the period ending                               with all required covenants except as noted below; (2) there are no Events of Default; (3) all representations and warranties in the Agreement are true and correct in all material respects on this date except as noted below; provided, however, that such materiality qualifier shall not be applicable to any representations and warranties that already are qualified or modified by materiality in the text thereof; and provided, further that those representations and warranties expressly referring to a specific date shall be true, accurate and complete in all material respects as of such date; (4) Borrower, and each of its Subsidiaries, has timely filed all required tax returns and reports, and Borrower has timely paid all foreign, federal, state and local taxes, assessments, deposits and contributions owed by Borrower except as otherwise permitted pursuant to the terms of Section 5.9 of the Agreement; and (5) no Liens have been levied or claims made against Borrower or any of its Subsidiaries relating to unpaid employee payroll or benefits of which Borrower has not previously provided written notification to Bank.

Attached are the required documents supporting the certification.  The undersigned certifies that these are prepared in accordance with GAAP consistently applied from one period to the next except as explained in an accompanying letter or footnotes. The undersigned acknowledges that no borrowings may be requested at any time or date of determination that Borrower is not in compliance with any of the terms of the Agreement, and that compliance is determined not just at the date this certificate is delivered. Capitalized terms used but not otherwise defined herein shall have the meanings given them in the Agreement.

Please indicate compliance status by circling Yes/No under “Complies” column.

The following financial covenant analysis and information set forth in Schedule 1 attached hereto are true and accurate as of the date of this Certificate.

The following are the exceptions with respect to the certification above:  (If no exceptions exist, state “No exceptions to note.”)

Schedule 1 to Compliance Certificate

Financial Covenants of Borrower

In the event of a conflict between this Schedule and the Loan Agreement, the terms of the Loan Agreement shall govern.

I.              Liquidity (Section 6.7(a))

Required:             2.00:1.00

Actual:

EXHIBIT E

LOAN AGREEMENT SUPPLEMENT No. [ ]

LOAN AGREEMENT SUPPLEMENT No. [   ], dated                                , 20       (“Supplement”), to the Loan and Security Agreement dated as of                                    , 2011 (as amended, restated, or otherwise modified from time to time, the “Loan Agreement) by and between the undersigned Proofpoint, Inc. (“Borrower”) and Silicon Valley Bank (“Bank”).  Capitalized terms used herein but not otherwise defined herein are used with the respective meanings given to such terms in the Loan Agreement.

To secure the prompt payment by Borrower of all amounts from time to time outstanding under the Loan Agreement, and the performance by Borrower of all its obligations contained in the Loan Agreement, Borrower grants Bank, a first priority security interest in each item of equipment and other property described in Annex A hereto, which equipment and other property shall be deemed to be additional Financed Equipment and Collateral. The Loan Agreement is hereby incorporated by reference herein and is hereby ratified, approved and confirmed. Annex A (Equipment Schedule) is attached hereto. The proceeds of the Equipment Advance should be transferred to Borrower’s account with Bank set forth below:

Borrower hereby certifies that (a) the foregoing information is true and correct; (b) the representations and warranties made by Borrower in the Loan Agreement are true and correct on the date hereof and shall be true and correct on such Funding Date. No Event of Default has occurred and is continuing under the Loan Agreement. This Supplement may be executed by Borrower and Bank in separate counterparts, each of which when so executed and delivered shall be an original, but all such counterparts shall together constitute but one and the same instrument.

This Supplement is delivered as of this day and year first above written.

Annex A - Description of Financed Equipment

Annex A to Supplement

The Financed Equipment being financed with the Equipment Advance which this Supplement is being executed is listed below.  Upon the funding of such

Equipment Advance, this schedule and the property described below automatically shall be deemed to be a part of the Collateral.

Sample Notice of Borrowing

EXHIBIT F

FORM OF NOTICE OF BORROWING

PROOFPOINT, INC.

TO:                            SILICON VALLEY BANK

3003 Tasman Drive

Santa Clara, CA 95054

Attention: Corporate Services Department

RE:                              Loan and Security Agreement dated as of                                        , 2011 (as amended, modified, supplemented or restated from time to time, the “Loan Agreement”), by and between PROOFPOINT, INC. (“Borrower”), and Silicon Valley Bank (the “Bank”)

Ladies and Gentlemen:

The undersigned refers to the Loan Agreement, the terms defined therein and used herein as so defined, and hereby gives you notice irrevocably, pursuant to Section 3.5 (a) of the Loan Agreement, of the borrowing of an Equipment Advance.

1.             The Funding Date, which shall be a Business Day, of the requested borrowing is                                    .

2.             The aggregate amount of the requested borrowing is $                                           .

3.             The requested Equipment Advance shall consist of $                                         of Prime Rate Advances and $                      of LIBOR Advances.

4.             The duration of the Interest Period for the LIBOR Advances included in the requested Equipment Advance shall be                                   months.

The undersigned hereby certifies that the following statements are true on the date hereof, and will be true on the date of the proposed Equipment Advance before and after giving effect thereto, and to the application of the proceeds therefrom, as applicable:

(a)           all representations and warranties of Borrower contained in the Loan Agreement are true, accurate and complete in all material respects as of the date hereof; provided, however, that such materiality qualifier shall not be applicable to any representations and warranties that already are qualified or modified by materiality in the text thereof; and provided, further that those representations and warranties expressly referring to a specific date shall be true, accurate and complete in all material respects as of such date; and

(b)           no Default or Event of Default has occurred and is continuing, or would result from such proposed Equipment Advance.

For internal Bank use only

EXHIBIT G

FORM OF NOTICE OF CONVERSION/CONTINUATION

PROOFPOINT, INC.

TO:                            SILICON VALLEY BANK
3003 Tasman Drive
Santa Clara, CA  95054
Attention:

RE:                              Loan and Security Agreement dated as of                                        , 2011 (as amended, modified, supplemented or restated from time to time, the “Loan Agreement”), by and between PROOFPOINT, INC. (“Borrower”), and Silicon Valley Bank (the “Bank”)

Ladies and Gentlemen:

The undersigned refers to the Loan Agreement, the terms defined therein being used herein as therein defined, and hereby gives you notice irrevocably, pursuant to Section 3.5 of the Loan Agreement, of the [conversion] [continuation] of the Equipment Advances specified herein, that:

1.             The date of the [conversion] [continuation] is                                      , 20     .

2.             The aggregate amount of the proposed Equipment Advances to be [converted] is $                                                or [continued] is $                         .

3.             The Equipment Advances are to be [converted into] [continued as] [LIBOR] [Prime Rate] Advances.

4.             The duration of the Interest Period for the LIBOR Advances included in the [conversion] [continuation] shall be                                   months.

The undersigned, on behalf of Borrower, hereby certifies that the following statements are true on the date hereof, and will be true on the date of the proposed [conversion] [continuation], before and after giving effect thereto and to the application of the proceeds therefrom:

(a)           all representations and warranties of Borrower stated in the Loan Agreement are true, accurate and complete in all material respects as of the date hereof; provided, however, that such materiality qualifier shall not be applicable to any representations and warranties that already are qualified or modified by materiality in the text thereof; and provided, further that those representations and warranties expressly referring to a specific date shall be true, accurate and complete in all material respects as of such date; and

(b)           no Default or Event of Default has occurred and is continuing, or would result from such proposed [conversion] [continuation].

[Signature page follows.]

For internal Bank use only

FIRST AMENDMENT TO LOAN AND SECURITY AGREEMENT

THIS FIRST AMENDMENT to Loan and Security Agreement (this “Amendment”) is entered into this 19th day of May, 2011, by and between Silicon Valley Bank (“Bank”) and Proofpoint, Inc., a Delaware corporation (“Borrower”) whose address is 892 Ross Drive, Sunnyvale, CA 94089.

RECITALS

A.            Bank and Borrower have entered into that certain Loan and Security Agreement dated as of April 19, 2011 (as the same may from time to time be further amended, modified, supplemented or restated, the “Loan Agreement”).

B.            Bank has extended credit to Borrower for the purposes permitted in the Loan Agreement.

C.            Borrower has requested that Bank amend the Loan Agreement and Perfection Certificate to make certain revisions as more fully set forth herein.

D.            Bank has agreed to so amend certain provisions of the Loan Agreement and Perfection Certificate, but only to the extent, in accordance with the terms, subject to the conditions and in reliance upon the representations and warranties set forth below.

AGREEMENT

NOW, THEREFORE, in consideration of the foregoing recitals and other good and valuable consideration, the receipt and adequacy of which is hereby acknowledged, and intending to be legally bound, the parties hereto agree as follows:

1.             Definitions.  Capitalized terms used but not defined in this Amendment shall have the meanings given to them in the Loan Agreement.

2.             Amendments to Loan Agreement and Perfection Certificate.

2.1          Section 6.1(b) (Governmental Approvals).  Section 6.1(b) of the Loan Agreement is amended in its entirety and replaced with the following:

(b)           Obtain all of the Governmental Approvals necessary for the performance by Borrower of its obligations under the Loan Documents to which it is a party and the grant of a security interest to Bank in all of the Collateral.

2.2          Perfection Certificate (Litigation).  Section 8(a) of the Perfection Certificate is amended and updated to include the litigation described in Schedule 1 to this Amendment.

3.             Limitation of Amendments.

3.1          The amendments set forth in Section 2 above are effective for the purposes set forth herein and shall be limited precisely as written and shall not be deemed to (a) be a consent to any amendment, waiver or modification of any other term or condition of any Loan Document, or (b) otherwise prejudice any right or remedy which Bank may now have or may have in the future under or in connection with any Loan Document.

3.2          This Amendment shall be construed in connection with and as part of the Loan Documents and all terms, conditions, representations, warranties, covenants and agreements set forth in the Loan Documents, except as herein amended, are hereby ratified and confirmed and shall remain in full force and effect.

1

4.             Representations and Warranties.  To induce Bank to enter into this Amendment, Borrower hereby represents and warrants to Bank as follows:

4.1          Immediately after giving effect to this Amendment (a) the representations and warranties contained in the Loan Documents are true, accurate and complete in all material respects as of the date hereof (except to the extent such representations and warranties relate to an earlier date, in which case they are true and correct as of such date), and (b) no Event of Default has occurred and is continuing;

4.2          Borrower has the power and authority to execute and deliver this Amendment and to perform its obligations under the Loan Agreement, as amended by this Amendment;

4.3          The organizational documents of Borrower delivered to Bank on the Effective Date remain true, accurate and complete and have not been amended, supplemented or restated and are and continue to be in full force and effect;

4.4          The execution and delivery by Borrower of this Amendment and the performance by Borrower of its obligations under the Loan Agreement, as amended by this Amendment, have been duly authorized;

4.5          The execution and delivery by Borrower of this Amendment and the performance by Borrower of its obligations under the Loan Agreement, as amended by this Amendment, do not and will not contravene (a) any law or regulation binding on or affecting Borrower, (b) any contractual restriction with a Person binding on Borrower, (c) any order, judgment or decree of any court or other governmental or public body or authority, or subdivision thereof, binding on Borrower, or (d) the organizational documents of Borrower;

4.6          The execution and delivery by Borrower of this Amendment and the performance by Borrower of its obligations under the Loan Agreement, as amended by this Amendment, do not require any order, consent, approval, license, authorization or validation of, or filing, recording or registration with, or exemption by any governmental or public body or authority, or subdivision thereof, binding on Borrower, except as already has been obtained or made; and

4.7          This Amendment has been duly executed and delivered by Borrower and is the binding obligation of Borrower, enforceable against Borrower in accordance with its terms, except as such enforceability may be limited by bankruptcy, insolvency, reorganization, liquidation, moratorium or other similar laws of general application and equitable principles relating to or affecting creditors’ rights.

5.             Counterparts.  This Amendment may be executed in any number of counterparts and all of such counterparts taken together shall be deemed to constitute one and the same instrument.

6.             Effectiveness.  This Amendment shall be deemed effective upon the due execution and delivery to Bank of this Amendment by each party hereto.

7.             Amendments in Writing; Integration.  This Amendment is a Loan Document. This Amendment and the Loan Documents represent the entire agreement about this subject matter and supersede prior negotiations or agreements. All prior agreements, understandings, representations, warranties, and negotiations between the parties about the subject matter of this Amendment and the Loan Documents merge into this Amendment and the Loan Documents.

8.             Governing Law; Venue.  The provisions of Section 11 of the Loan Agreement apply to this Amendment.

[Signature page follows.]

2

IN WITNESS WHEREOF, the parties hereto have caused the First Amendment to Loan and Security Agreement to be duly executed and delivered as of the date first written above.

3

Schedule I

4