CONSENT OF INDEPENDENT ACCOUNTANTS
We hereby consent to the incorporation by reference in the Registration Statement on Form S-8 (File No. 333-76728) of Plexus Corp. of our report dated May 19, 2006 relating to the financial statements and schedule of Plexus Corp. 401(k) Savings Plan, which appears in this Annual Report (Form 11-K) for the year ended December 31, 2005.
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Wipfli LLP
June 26, 2006
Green Bay, Wisconsin
Green Bay, Wisconsin