Lantronix (LTRX) 10-Q 2008 Q2 Quarterly report

Exhibit 32.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER AND PRINCIPAL FINANCIAL OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Reagan Y. Sakai , certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Quarterly Report of Lantronix, Inc. on Form 10-Q for the fiscal quarter ended December 31, 2007 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 Quarterly Report on Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of Lantronix, Inc.

Date: February 8, 2008

By:       /s/ Reagan Y. Sakai                    

Name:  Reagan Y. Sakai

Title:    Interim Chief Executive Officer

 Chief Financial Officer and Secretary

 (Principal Executive and Financial Officer)