Exhibit 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Marc H. Nussbaum, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Annual Report of Lantronix, Inc. on Form 10-K for the fiscal year ended June 30, 2006 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Annual Report on Form 10-K fairly presents in all material respects the financial condition and results of operations of Lantronix, Inc.

Date: September 11, 2006	By:	/s/ MARC H. NUSSBAUM
		Name: Marc H. Nussbaum
		Title:   President and Chief Executive Officer

I, James W. Kerrigan, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Annual Report of Lantronix, Inc. on Form 10-K for the fiscal year ended June 30, 2006 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Annual Report on Form 10-K fairly presents in all material respects the financial condition and results of operations of Lantronix, Inc

Date: September 11, 2006	By:	/s/ JAMES W. KERRIGAN
		Name: James W. Kerrigan
		Title:   Chief Financial Officer and Secretary