FIRST AMENDMENT TO credit agreement

THIS FIRST AMENDMENT TO CREDIT AGREEMENT (this “Amendment”) made as of the 9th day of May, 2014, by and among QUILL EQUITY LLC, a Delaware limited liability company (“Borrower”), DUPONT FABROS TECHNOLOGY, L.P., a Maryland limited partnership (“Guarantor”), KEYBANK NATIONAL ASSOCIATION, a national banking association (“KeyBank”), THE OTHER LENDERS WHICH ARE SIGNATORIES HERETO (KeyBank and the other lenders which are signatories hereto, collectively, the “Lenders”), and KEYBANK NATIONAL ASSOCIATION, a national banking association, as Administrative Agent for the Lenders (the “Agent”).

WHEREAS, Borrower, Guarantor, Agent and the Lenders entered into that certain Credit Agreement dated as of March 27, 2013 (the “Credit Agreement”); and

WHEREAS, Borrower has requested that the Agent and the Lenders make certain modifications to the terms of the Credit Agreement; and

WHEREAS, the Agent and the Lenders have agreed to make such modifications subject to the execution and delivery by Borrower and Guarantor of this Amendment.

NOW, THEREFORE, for and in consideration of the sum of TEN and NO/100 DOLLARS ($10.00), and other good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged, the parties hereto do hereby covenant and agree as follows:

1.Definitions. All the terms used herein which are not otherwise defined herein shall have the meanings set forth in the Credit Agreement.

2.Modifications of the Credit Agreement. Borrower, Guarantor, the Lenders and Agent do hereby modify and amend the Credit Agreement as follows:

(a)By deleting in its entirety the definition of “Applicable Margin” appearing in §1.1 of the Credit Agreement, and inserting in lieu thereof the following:

“Applicable Margin. The Applicable Margin for LIBOR Rate Loans and Base Rate Loans shall be as follows:

(b)By deleting in its entirety the first (1^st) sentence of §4.2 of the Credit Agreement, and inserting in lieu thereof the following:

“Borrower agrees to pay to KeyBank and Agent for their own account certain fees for services rendered or to be rendered in connection with the Loans as provided pursuant to a fee letter dated March 24, 2014 between Guarantor, KeyBank and Arranger (the “Agreement Regarding Fees”).”

(c)By deleting in its entirety Section §4.12 of the Credit Agreement, and inserting in lieu thereof the following:

“§4.12    Default Interest. Following the occurrence and during the continuance of any Event of Default, and regardless of whether or not the Agent or the Lenders shall have accelerated the maturity of the Loans, all Loans shall bear interest payable on demand at a rate per annum equal to two and 55/100ths percent (2.55%) above the Base Rate (the “Default Rate”), until such amount shall be paid in full (after as well as before judgment), or if any of such amounts shall exceed the maximum rate permitted by law, then at the maximum rate permitted by law.”

3.References to Credit Agreement. All references in the Loan Documents to the Credit Agreement shall be deemed a reference to the Credit Agreement as modified and amended herein.

4.Acknowledgment of Borrower and Guarantor. Borrower and Guarantor hereby acknowledge, represent and agree that the Loan Documents, as modified and amended herein, remain in full force and effect and constitute the valid and legally binding obligation of Borrower and Guarantor, as applicable, enforceable against Borrower and Guarantor in accordance with their respective terms, and that the execution and delivery of this Amendment does not constitute, and shall not be deemed to constitute, a release, waiver or satisfaction of Borrower’s or Guarantor’s obligations under the Loan Documents.

5.Representations and Warranties. Borrower and Guarantor represent and warrant to Agent and the Lenders as follows:

(a)Authorization. The execution, delivery and performance of this Amendment and the transactions contemplated hereby (i) are within the authority of Borrower and Guarantor, (ii) have been duly authorized by all necessary proceedings on the part of the Borrower and Guarantor, (iii) do not and will not conflict with or result in any breach or contravention of any provision of law, statute, rule or regulation to which any of the Borrower or Guarantor is subject or any judgment, order, writ, injunction, license or permit applicable to any of the Borrower or Guarantor, (iv) do not and will not conflict with or constitute a default (whether with the passage of time or the giving of notice, or both) under any provision of the partnership agreement or certificate, certificate of formation, operating agreement, articles of incorporation or other charter documents or bylaws of, or any mortgage, indenture, agreement, contract or other instrument binding upon, any of the Borrower or Guarantor or any of their respective properties or to which any of the Borrower or Guarantor is subject, and (v) do not and will not result in or require the imposition of any lien or other encumbrance on any of the properties, assets or rights of any of the Borrower or Guarantor.

(b)Enforceability. This Amendment is the valid and legally binding obligations of Borrower and Guarantor enforceable in accordance with the respective terms and provisions hereof, except as enforceability is limited by bankruptcy, insolvency, reorganization, moratorium or other laws relating to or affecting generally the enforcement of creditors’ rights and the effect of general principles of equity.

(c)Approvals. The execution, delivery and performance of this Amendment and the transactions contemplated hereby do not require the approval or consent of any Person or the authorization, consent, approval of or any license or permit issued by, or any filing or registration with, or the giving of any notice to, any court, department, board, commission or other governmental agency or authority other than those already obtained and any disclosure filings with the SEC as may be required with respect to this Amendment.

(d)Reaffirmation. Borrower and Guarantor reaffirm and restate as of the date hereof each and every representation and warranty made by the Borrower and Guarantor and their respective Subsidiaries in the Loan Documents or otherwise made by or on behalf of such Persons in connection therewith except for representations or warranties that expressly relate to an earlier date.

6.No Default. By execution hereof, the Borrower and Guarantor certify that as of the date of this Amendment and immediately after giving effect to this Amendment, no Default or Event of Default has occurred and is continuing.

7.Waiver of Claims. Borrower and Guarantor acknowledge, represent and agree that none of such Persons has any defenses, setoffs, claims, counterclaims or causes of action of any kind or nature whatsoever arising on or before the date hereof with respect to the Loan Documents, the administration or funding of the Loan or with respect to any acts or omissions of Agent or any Lender, or any past or present officers, agents or employees of Agent or any Lender pursuant to or relating to the Loan Documents, and each of such Persons does hereby expressly waive, release and relinquish any and all such defenses, setoffs, claims, counterclaims and causes of action arising on or before the date hereof, if any.

8.Ratification. Except as hereinabove set forth, all terms, covenants and provisions of the Credit Agreement remain unaltered and in full force and effect, and the parties hereto do hereby expressly ratify and confirm the Loan Documents as modified and amended herein. Guarantor hereby consents to the terms of this Amendment. Nothing in this Amendment or any other document delivered in connection herewith shall be deemed or construed to constitute, and there has not otherwise occurred, a novation, cancellation, satisfaction, release, extinguishment or substitution of the indebtedness evidenced by the Notes or the other obligations of Borrower and Guarantor under the Loan Documents.

9.Effective Date. The effectiveness of this Amendment is subject to receipt by the Agent of each of the following, each in form and substance reasonably satisfactory to the Agent:

(a)A counterpart of this Amendment duly executed by the Borrower, Guarantor, all of the Lenders and Agent;

(b)Evidence that the Borrower shall have paid all fees due and payable with respect to this Amendment; and

(c)Such other certificates, documents, instruments and agreements as the Agent may reasonably request.

The Borrower will pay the reasonable fees and expenses of Agent in connection with this Amendment in accordance with Section 15 of the Credit Agreement. All interest accrued prior to the effectiveness of this Amendment under provisions of the Credit Agreement modified by this Amendment shall remain payable at the due dates set forth in the Credit Agreement.

10.Amendment as Loan Document. This Amendment shall constitute a Loan Document.

11.Counterparts. This Amendment may be executed in any number of counterparts which shall together constitute but one and the same agreement.

12.MISCELLANEOUS. THIS AMENDMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE COMMONWEALTH OF VIRGINIA. This Amendment shall be binding upon and shall inure to the benefit of the parties hereto and their respective permitted successors, successors-in-title and assigns as provided in the Credit Agreement.

IN WITNESS WHEREOF, the parties hereto have hereto set their hands and affixed their seals as of the day and year first above written.