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 Quarterly
Report of Lantronix, Inc. on Form 10-Q for the fiscal quarter ended December 31,
2004 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 14, 2005
                                    By: /S/ MARC H. NUSSBAUM
                                        --------------------------------------
                                        Name:  Marc H. Nussbaum
                                        Title: 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 Quarterly
Report of Lantronix, Inc. on Form 10-Q for the fiscal quarter ended December 31,
2004, 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 14, 2005
                                    By: /S/ JAMES W. KERRIGAN
                                        --------------------------------------
                                        Name:  James W. Kerrigan
                                        Title: Chief Financial Officer