SECURITIES & EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   ----------

                                  SCHEDULE 13G
                                 (Rule 13d-102)

             INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
           TO RULES 13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED
         PURSUANT TO 13d-2(b) UNDER THE SECURITIES EXCHANGE ACT OF 1934
                               (Amendment No. 4)*

                                 LANTRONIX INC.
                                (Name of Issuer)

                                  Common Stock
                         (Title of Class of Securities)

                                    516548104
                                 (CUSIP Number)

                                DECEMBER 31, 2006
             (Date of event which requires filing of this statement)

     Check the appropriate box to designate the rule pursuant to which this
Schedule 13G is filed:

     [ ]  Rule 13d-1(b)

     [X]  Rule 13d-1(c)

     [ ]  Rule 13d-1(d)

----------
*    The remainder of this cover page shall be filled out for a reporting
     person's initial filing on this form with respect to the subject class of
     securities, and for any subsequent amendment containing information which
     would alter the disclosures provided in a prior cover page.

     The information required in the remainder of this cover page shall not be
deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act
of 1934 ("Act") or otherwise subject to the liabilities of that section of the
Act but shall be subject to all other provisions of the Act (however, see the
Notes).


                               Page 1 of 11 Pages



CUSIP No. 516548104                    13G                    Page 2 of 11 Pages


--------------------------------------------------------------------------------
(1)  NAMES OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

     Empire Capital Partners, L.P.
--------------------------------------------------------------------------------
(2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **

     (a)  [ ]
     (b)  [X]
--------------------------------------------------------------------------------
(3)  SEC USE ONLY

--------------------------------------------------------------------------------
(4)  CITIZENSHIP OR PLACE OF ORGANIZATION

     Delaware
--------------------------------------------------------------------------------
               (5)  SOLE VOTING POWER

                    -0-
               -----------------------------------------------------------------
  NUMBER OF    (6)  SHARED VOTING POWER
   SHARES
BENEFICIALLY        3,073,426
  OWNED BY     -----------------------------------------------------------------
    EACH       (7)  SOLE DISPOSITIVE POWER
  REPORTING
 PERSON WITH        -0-
               -----------------------------------------------------------------
               (8)  SHARED DISPOSITIVE POWER

                    3,073,426
--------------------------------------------------------------------------------
(9)  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     3,073,426
--------------------------------------------------------------------------------
(10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES **

     [ ]
--------------------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

     5.1%
--------------------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON **

     PN
--------------------------------------------------------------------------------

**   SEE INSTRUCTIONS BEFORE FILLING OUT!



CUSIP No. 516548104                    13G                    Page 3 of 11 Pages


--------------------------------------------------------------------------------
(1)  NAMES OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

     Empire GP, L.L.C.
--------------------------------------------------------------------------------
(2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **

     (a)  [ ]
     (b)  [X]
--------------------------------------------------------------------------------
(3)  SEC USE ONLY

--------------------------------------------------------------------------------
(4)  CITIZENSHIP OR PLACE OF ORGANIZATION

     Delaware
--------------------------------------------------------------------------------
               (5)  SOLE VOTING POWER

                    -0-
               -----------------------------------------------------------------
  NUMBER OF    (6)  SHARED VOTING POWER
   SHARES
BENEFICIALLY        3,073,426
  OWNED BY     -----------------------------------------------------------------
    EACH       (7)  SOLE DISPOSITIVE POWER
  REPORTING
 PERSON WITH        -0-
               -----------------------------------------------------------------
               (8)  SHARED DISPOSITIVE POWER

                    3,073,426
--------------------------------------------------------------------------------
(9)  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     3,073,426
--------------------------------------------------------------------------------
(10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES **

     [ ]
--------------------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

     5.1%
--------------------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON **

     OO
--------------------------------------------------------------------------------

**   SEE INSTRUCTIONS BEFORE FILLING OUT!



CUSIP No. 516548104                    13G                    Page 4 of 11 Pages


--------------------------------------------------------------------------------
(1)  NAMES OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

     Empire Capital Management, L.L.C.
--------------------------------------------------------------------------------
(2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **

     (a)  [ ]
     (b)  [X]
--------------------------------------------------------------------------------
(3)  SEC USE ONLY

--------------------------------------------------------------------------------
(4)  CITIZENSHIP OR PLACE OF ORGANIZATION

     Delaware
--------------------------------------------------------------------------------
               (5)  SOLE VOTING POWER

                    -0-
               -----------------------------------------------------------------
  NUMBER OF    (6)  SHARED VOTING POWER
   SHARES
BENEFICIALLY        3,289,774
  OWNED BY     -----------------------------------------------------------------
    EACH       (7)  SOLE DISPOSITIVE POWER
  REPORTING
 PERSON WITH        -0-
               -----------------------------------------------------------------
               (8)  SHARED DISPOSITIVE POWER

                    3,289,774
--------------------------------------------------------------------------------
(9)  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     3,289,774
--------------------------------------------------------------------------------
(10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES **

     [ ]
--------------------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

     5.5%
--------------------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON **

     OO
--------------------------------------------------------------------------------

**   SEE INSTRUCTIONS BEFORE FILLING OUT!



CUSIP No. 516548104                    13G                    Page 5 of 11 Pages


--------------------------------------------------------------------------------
(1)  NAMES OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

     Scott A. Fine
--------------------------------------------------------------------------------
(2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **

     (a)  [ ]
     (b)  [X]
--------------------------------------------------------------------------------
(3)  SEC USE ONLY

--------------------------------------------------------------------------------
(4)  CITIZENSHIP OR PLACE OF ORGANIZATION

     United States
--------------------------------------------------------------------------------
               (5)  SOLE VOTING POWER

                    -0-
               -----------------------------------------------------------------
  NUMBER OF    (6)  SHARED VOTING POWER
   SHARES
BENEFICIALLY        6,363,200
  OWNED BY     -----------------------------------------------------------------
    EACH       (7)  SOLE DISPOSITIVE POWER
  REPORTING
 PERSON WITH        -0-
               -----------------------------------------------------------------
               (8)  SHARED DISPOSITIVE POWER

                    6,363,200
--------------------------------------------------------------------------------
(9)  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     6,363,200
--------------------------------------------------------------------------------
(10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES **

     [ ]
--------------------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

     10.6%
--------------------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON **

     IN
--------------------------------------------------------------------------------

**   SEE INSTRUCTIONS BEFORE FILLING OUT!



CUSIP No. 516548104                    13G                    Page 6 of 11 Pages


--------------------------------------------------------------------------------
(1)  NAMES OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

     Peter J. Richards
--------------------------------------------------------------------------------
(2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP **

     (a)  [ ]
     (b)  [X]
--------------------------------------------------------------------------------
(3)  SEC USE ONLY

--------------------------------------------------------------------------------
(4)  CITIZENSHIP OR PLACE OF ORGANIZATION

     United States
--------------------------------------------------------------------------------
               (5)  SOLE VOTING POWER

                    -0-
               -----------------------------------------------------------------
  NUMBER OF    (6)  SHARED VOTING POWER
   SHARES
BENEFICIALLY        6,363,200
  OWNED BY     -----------------------------------------------------------------
    EACH       (7)  SOLE DISPOSITIVE POWER
  REPORTING
 PERSON WITH        -0-
               -----------------------------------------------------------------
               (8)  SHARED DISPOSITIVE POWER

                    6,363,200
--------------------------------------------------------------------------------
(9)  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     6,363,200
--------------------------------------------------------------------------------
(10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES **

     [ ]
--------------------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

     10.6%
--------------------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON **

     IN
--------------------------------------------------------------------------------

**   SEE INSTRUCTIONS BEFORE FILLING OUT!



CUSIP No. 516548104                    13G                    Page 7 of 11 Pages


Item 1(a). Name of Issuer:

     The name of the issuer is LANTRONIX INC.(the "Company").

Item 1(b). Address of Issuer's Principal Executive Offices:

     The Company's principal executive offices are located at 15353 Barranca
Parkway, Irvine, CA 92618.

Item 2(a). Name of Person Filing:

     This statement is filed by:

          (i)  Empire Capital Partners, L.P., a Delaware limited partnership
               ("Empire Capital"), with respect to the shares of Common Stock
               (as defined below) directly owned by it;

          (ii) Empire GP, L.L.C., a Delaware limited liability company ("Empire
               GP"), with respect to the shares of Common Stock directly owned
               by Empire Capital;

          (iii) Empire Capital Management, L.L.C., a Delaware limited liability
               company ("Empire Management") with respect to the shares of
               Common Stock directly owned by Empire Capital Partners, Ltd. (the
               "Empire Overseas Fund"), Charter Oak Partners, L.P. and Charter
               Oak Partners II, L.P. (the "Charter Oak Funds");

          (iv) Mr. Scott A. Fine ("Mr. Fine") with respect to the shares of
               Common Stock directly owned by Empire Capital, the Empire
               Overseas Fund and the Charter Oak Funds; and

          (v)  Mr. Peter J. Richards ("Mr. Richards") with respect to the shares
               of Common Stock directly owned by Empire Capital, the Empire
               Overseas Fund and the Charter Oak Funds.

               The foregoing persons are hereinafter sometimes collectively
          referred to as the "Reporting Persons." Any disclosures herein with
          respect to persons other than the Reporting Persons are made on
          information and belief after making inquiry to the appropriate party.



CUSIP No. 516548104                    13G                    Page 8 of 11 Pages


Item 2(c). Citizenship:

     Empire Capital is a limited partnership organized under the laws of the
     State of Delaware. Each of Empire GP and Empire Management is a limited
     liability company organized under the laws of the State of Delaware.
     Messrs. Fine and Richards are each a United States citizen.

Item 2(d). Title of Class of Securities:

     Common Stock (the "Common Stock")

Item 2(e). CUSIP Number:

     516548104

Item 3. If this statement is filed pursuant to Rules 13d-1(b) or 13d-2(b) or
(c), check whether the person filing is a:

          (a)  [ ]  Broker or dealer registered under Section 15 of the Act,

          (b)  [ ]  Bank as defined in Section 3(a)(6) of the Act,

          (c)  [ ]  Insurance Company as defined in Section 3(a)(19) of the Act,

          (d)  [ ]  Investment Company registered under Section 8 of the
                    Investment Company Act of 1940,

          (e)  [ ]  Investment Adviser in accordance with Rule 13d-1
                    (b)(1)(ii)(E),

          (f)  [ ]  Employee Benefit Plan or Endowment Fund in accordance with
                    13d-1 (b)(1)(ii)(F),

          (g)  [ ]  Parent Holding Company or control person in accordance with
                    Rule 13d-1 (b)(1)(ii)(G),

          (h)  [ ]  Savings Association as defined in Section 3(b) of the
                    Federal Deposit Insurance Act,

          (i)  [ ]  Church Plan that is excluded from the definition of an
                    investment company under Section 3(c)(14) of the Investment
                    Company Act of 1940,

          (j)  [ ]  Group, in accordance with Rule 13d-1(b)(1)(ii)(J).

     If this statement is filed pursuant to 13d-1(c), check this box: [X]



CUSIP No. 516548104                    13G                    Page 9 of 11 Pages


Item 4. Ownership.

     A.   Empire Capital Partners, L.P. and Empire GP, L.L.C.

          (a)  Amount beneficially owned: 3,073,426

          (b)  Percent of class: 5.1%

               The percentages used herein and in the rest of Item 4 are
               calculated based upon the 59,596,957 shares of Common Stock
               issued and outstanding as of November 10, 2006 as reflected in
               the Company's Form 10-Q filed on November 14, 2006.

          (c)  (i)  Sole power to vote or direct the vote: -0-

               (ii) Shared power to vote or direct the vote: 3,073,426

               (iii) Sole power to dispose or direct the disposition: -0-

               (iv) Shared power to dispose or direct the disposition: 3,073,426

Empire Capital has the power to dispose of and the power to vote the shares of
Common Stock beneficially owned by it, which power may be exercised by its
general partner, Empire GP. Empire GP does not directly own any shares of Common
Stock. By reason of the provisions of Rule 13d-3 of the Securities Exchange Act
of 1934 (the "Act"), Empire GP may be deemed to own beneficially the shares
owned by Empire Capital.

     B.   Empire Management

          (a)  Amount beneficially owned: 3,289,774

          (b)  Percent of class: 5.5%

          (c)  (i)  Sole power to vote or direct the vote: -0-

               (ii) Shared power to vote or direct the vote: 3,289,774

               (iii) Sole power to dispose or direct the disposition: -0-

               (iv) Shared power to dispose or direct the disposition: 3,289,774

The Empire Overseas Fund and the Charter Oak Funds have the power to dispose of
and the power to vote the shares of Common Stock beneficially owned by them,
which power may be exercised by their investment manager, Empire Management.
Empire Management does not directly own any shares of Common Stock. By reason of
the provisions of Rule 13d-3 of the Securities Exchange Act of 1934 (the "Act"),
Empire Management may be deemed to own beneficially the shares owned by the
Empire Overseas Fund and the Charter Oak Funds.

     C.   Scott A. Fine and Peter J. Richards

          (a)  Amount beneficially owned: 6,363,200

          (b)  Percent of class: 10.6%

          (c)  (i)  Sole power to vote or direct the vote: -0-

               (ii) Shared power to vote or direct the vote: 6,363,200

               (iii) Sole power to dispose or direct the disposition: -0-

               (iv) Shared power to dispose or direct the disposition: 6,363,200

Messrs. Fine and Richards, as Members, direct the operations of Empire GP and
Empire Management. Neither Mr. Fine nor Mr. Richards directly own any shares of
Common Stock. By reason of the provisions of Rule 13d-3 of the Act, each may be
deemed to beneficially own the shares beneficially owned by Empire Capital, the
Empire Overseas Fund and the Charter Oak Funds.

Item 5. Ownership of Five Percent or Less of a Class.

     Not applicable.



CUSIP No. 516548104                    13G                   Page 10 of 11 Pages


Item 6. Ownership of More than Five Percent on Behalf of Another Person.

     Empire GP, the general partner of Empire Capital, has the power to direct
the affairs of Empire Capital, including decisions respecting the disposition of
the proceeds from the sale of the Common Stock. Empire Management, the
investment manager of the Empire Overseas Fund has the power to direct the
affairs of the Empire Overseas Fund, including decisions respecting the
disposition of the proceeds from the sale of the Common Stock. Empire
Management, pursuant to investment management agreements with Charter Oak and
Charter Oak II, has the power to dispose of the proceeds from the sale of the
Common Stock with respect to those assets of the Charter Oak Funds under its
discretion. Messrs. Fine and Richards are the Members of Empire GP and Empire
Management, and in their capacities direct the operations of Empire GP and
Empire Management.

Item 7. Identification and Classification of the Subsidiary Which Acquired the
Security Being Reported on by the Parent Holding Company.

     Not applicable.

Item 8. Identification and Classification of Members of the Group.

     Not applicable.

Item 9. Notice of Dissolution of Group.

     Not applicable.

Item 10. Certification.

     Each of the Reporting Persons hereby makes the following certification:

By signing below I certify that, to the best of my knowledge and belief, the
securities referred to above were not acquired and are not held for the purpose
of or with the effect of changing or influencing the control of the issuer of
the securities and were not acquired and are not held in connection with or as a
participant in any transaction having that purpose or effect.



CUSIP No. 516548104                    13G                   Page 11 of 11 Pages


                                   SIGNATURES

After reasonable inquiry and to the best of our knowledge and belief, the
undersigned certify that the information set forth in this statement is true,
complete and correct.

DATED: February 13, 2007


                                        By: /s/ Scott A. Fine
                                            ------------------------------------
                                            Scott A. Fine, individually, and as
                                            member of Empire GP, L.L.C. and
                                            Empire Capital Management, L.L.C.


                                        By: /s/ Peter J. Richards
                                            ------------------------------------
                                            Peter J. Richards, individually, and
                                            as member of Empire GP, L.L.C. and
                                            Empire Capital Management, L.L.C.