EX-32.1 4 gsit-20250930xex32d1.htm EX-32.1

Exhibit 32.1

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CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

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In connection with the Quarterly Report of GSI Technology, Inc. (the “Company”) on Form 10-Q for the quarter ended September 30, 2025 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned officers of the Company, each certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

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| (1) | The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)); and

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

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u | ​
November 7, 2025 | ​
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​ | /s/ LEE-LEAN SHU
​ | Lee-Lean Shu
​ | President, Chief Executive Officer and Chairman

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OUG | ​
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​ | /s/ DOUGLAS M. SCHIRLE
​ | Douglas M. Schirle
​ | Chief Financial Officer

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A signed original of this written statement required by Section 906, or other document authenticating, acknowledging, or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to the Registrant and will be retained by the Registrant and furnished to the Securities and Exchange Commission or its staff upon request.