FIRST AMENDMENT TO THE QLOGIC CORPORATION 2005 PERFORMANCE INCENTIVE PLAN

EXHIBIT 10.11

FIRST AMENDMENT TO THE
QLOGIC CORPORATION
2005 PERFORMANCE INCENTIVE PLAN

     This First Amendment to the QLogic Corporation 2005 Performance Incentive Plan (the “Amendment”) is adopted by QLogic Corporation, a Delaware corporation (the “Company”), effective as of June 1, 2006 (the “Effective Date”).

RECITALS

     A. The QLogic Corporation 2005 Performance Incentive Plan (the “Plan”) was adopted by the Board of Directors of the Company (the “Board”) on June 9, 2005 and approved by the stockholders of the Company on August 23, 2005.

     B. Appendix A of the Plan sets forth the material terms of the automatic award grants to non-employee directors.

     C. The Company completed a 2-for-1 stock split on March 2, 2006 (the “Stock Split”).

     D. The Board desires to amend the Plan to: (i) adjust the initial option grant to new non-employee directors to 50,000 shares of Common Stock, (ii) adjust the annual option grant to non-employee directors to 25,000 shares of Common Stock, (iii) adjust the annual option grant t