Form of Restricted Stock Unit Award Agreement (for non-employee directors)

Vesting Schedule:

Grant of Restricted Stock Units. The Company hereby confirms the grant to you, as of the Grant Date and subject to the terms and conditions in this Agreement and the Plan, of the number of Restricted Stock Units specified on the cover page of this Agreement (the “Units”). Each Unit represents the right to receive one Share of the Company’s common stock. Prior to their settlement or forfeiture in accordance with the terms of this Agreement, the Units granted to you will be credited to an account in your name maintained by the Company. This account shall be unfunded and maintained for book-keeping purposes only, with the Units simply representing an unfunded and unsecured contingent obligation of the Company.

Restrictions Applicable to Units. Neither this Award nor the Units subject to this Award may be sold, assigned, transferred, exchanged or encumbered, voluntarily or involuntarily, other than a transfer upon your death in accordance with your will or by the laws of descent and distribution. Following any such transfer, this Award shall continue to be subject to the same terms and conditions that were applicable to this Award immediately prior to its transfer. Any attempted transfer in violation of this Section 2 shall be void and without effect. The Units and your right to receive Shares in settlement of the Units under this Agreement shall be subject to forfeiture as provided in Section 5 until satisfaction of the vesting conditions set forth in Section 4.

No Shareholder Rights. The Units subject to this Award do not entitle you to any rights of a holder of the Company’s common stock. You will not have any of the rights of a shareholder of the Company in connection with the grant of Units subject to this Agreement unless and until Shares are issued to you upon settlement of the Units as provided in Section 6.

Vesting of Units. For purposes of this Agreement, “Vesting Date” means any date, including the Scheduled Vesting Dates specified in the Vesting Schedule on the cover page of this Agreement, on which Units subject to this Agreement vest as provided in this Section 4.

Scheduled Vesting. If you remain a Service Provider continuously from the Grant Date specified on the cover page of this Agreement, then the Units will vest in the amounts and on the Scheduled Vesting Dates specified in the Vesting Schedule.

Accelerated or Continued Vesting. All unvested Units shall vest in full upon the occurrence of a Change in Control that occurs while you continue to be a Service Provider.

Effect of Termination of Service. Except as otherwise provided in accordance with Section 4(b) above, if you cease to be a Service Provider, you will forfeit all unvested Units.

Settlement of Units. After any Units vest pursuant to Section 4, the Company shall, as soon as practicable (but no later than the 15^th day of the third calendar month following the Vesting Date), cause to be issued and delivered to you (or to your personal representative or your designated beneficiary or estate in the event of your death, as applicable) one Share in payment and settlement of each vested Unit. Delivery of the Shares shall be effected by the issuance of a

Governing Plan Document. This Agreement and the Award are subject to all the provisions of the Plan, and to all interpretations, rules and regulations which may, from time to time, be adopted and promulgated by the Committee pursuant to the Plan. If there is any conflict between the provisions of this Agreement and the Plan, the provisions of the Plan will govern.

No Right to Continued Service. This Agreement does not give you a right to continued Service with the Company or any Affiliate, and the Company or any such Affiliate may terminate your Service at any time and otherwise deal with you without regard to the effect it may have upon you under this Agreement.

Choice of Law. This Agreement will be interpreted and enforced under the laws of the state of Minnesota (without regard to its conflicts or choice of law principles).

Binding Effect. This Agreement will be binding in all respects on your heirs, representatives, successors and assigns, and on the successors and assigns of the Company.

Section 409A of the Code. The award of Units as provided in this Agreement and any issuance of Shares or payment pursuant to this Agreement are intended to be exempt from Section 409A of the Code under the short-term deferral exception specified in Treas. Reg. § 1.409A-l(b)(4).

Electronic Delivery and Acceptance. The Company may deliver any documents related to this Restricted Stock Unit Award by electronic means and request your acceptance of this Agreement by electronic means. You hereby consent to receive all applicable documentation by electronic delivery and to participate in the Plan through an on-line (and/or voice activated) system established and maintained by the Company or the Company’s third-party stock plan administrator.