Seagate Technology (STX) 10-Q 2006 Q3 Quarterly report

EXHIBIT 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

This certification is not to be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and does not constitute a part of the Quarterly Report of Seagate Technology (the “Company”) on Form 10-Q for the fiscal quarter ended March 31, 2006, as filed with the Securities and Exchange Commission on the date hereof (the “Report”).

In connection with the Report we, William D. Watkins, Chief Executive Officer of the Company, and Charles C. Pope, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: April 28, 2006	/s/ WILLIAM D. WATKINS William D. Watkins Chief Executive Officer
Date: April 28, 2006	/s/ CHARLES C. POPE Charles C. Pope Chief Financial Officer

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