Exhibit 23.1

                       CONSENT OF INDEPENDENT ACCOUNTANTS

         We hereby consent to the incorporation by reference in this
Post-Effective Amendment No. 2 to Registration Statement on Form S-8 of our
report dated April 28, 1999 relating to the financial statements of Adaptec,
Inc., which appears in Adaptec, Inc.'s Annual Report on Form 10-K for the year
ended March 31, 1999.

/s/ PricewaterhouseCoopers LLP

San Jose, California

November 19, 1999