Document:

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                                                                     EXHIBIT 4.8

                                 AMENDMENT NO. 1
                                       TO
                                SERIES C WARRANT
                                       TO
                              PURCHASE COMMON STOCK
                                       OF
                        RAPTOR NETWORKS TECHNOLOGY, INC.

     THIS AMENDMENT NO. 1 TO SERIES C WARRANT TO PURCHASE COMMON STOCK (the
"AMENDMENT") is entered into effective as of December 12, 2005 (the "EFFECTIVE
DATE"), by and among RAPTOR NETWORKS TECHNOLOGY, INC., a Colorado corporation
(the "COMPANY"), and DMK Investments, LLC ("DMK"), Transglobal Investments, LLC
("Transglobal"), and Uptrend Investment, Inc. ("UPTREND") (DMK, Transglobal and
Uptrend each a "HOLDER," and collectively, the "HOLDERS"). The Company and the
Holders may collectively be referred to herein as the "Parties."

                                 R E C I T A L S

     A. The Company issued a Series C Warrant to Purchase Common Stock, dated on
or around June 1, 2004, with an exercise price of $3.00 per share of common
stock, to each of the Holders in the following amounts: DMK, for the purchase of
up to 138,889 shares of the Company's common stock; Transglobal, for the
purchase of up to 277,778 shares of the Company's common stock; and Uptrend, for
the purchase of up to 555,556 shares of the Company's common stock (each a
"WARRANT," and collectively the "WARRANTS").

     B. The Company previously delivered a letter to the Holders whereby the
Company agreed to reduce the Exercise Price of the Warrants to $1.25 per share,
a conformed copy of which letter is attached hereto as EXHIBIT A (the "EXERCISE
PRICE LETTER").

     C. The Parties entered into a letter agreement, dated August 8, 2005, and
accepted and agreed to by the Holders on September 20, 2005, whereby the Parties
agreed in principle to certain amendments to the Warrants, a copy of which
letter agreement is attached hereto as EXHIBIT B (the "LETTER AGREEMENT").

     D. The Parties desire to formalize the amendments set forth in the Exercise
Price Letter and the Letter Agreement and amend the Warrants in the manner
specifically set forth below.

     NOW, THEREFORE, in consideration of the premises and the mutual promises
herein made, and in consideration of the representations, warranties, and
covenants herein contained, the Parties agree as follows.

     1. CAPITALIZED TERMS. Capitalized terms used but not defined herein shall
have the meanings for such terms that are set forth in the Warrants.

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     2. CERTAIN AMENDMENTS.

          (a) AMENDMENT TO SECTION 1(a) - EXERCISE PRICE. The last sentence of
Section 1(a) of the Warrants shall hereby be amended and restated as follows:

               "The "EXERCISE PRICE" for each Warrant Share purchased by the
          Holder upon the exercise of this Warrant shall be equal to $1.25,
          subject to adjustment for the events specified in Section 4 below."

          (b) AMENDMENT TO SECTION 4(d). For purposes of clarifying the
adjustment procedure set forth in SECTION 4 of the Warrants, the following
sentence shall be added to the end of SECTION 4(d) of the Warrants:

               "For purposes of clarity, no adjustment pursuant to this
          paragraph 4 shall result from a decrease of the Exercise Price
          mutually agreed to by the Company and the Holder."

     3. NO ADJUSTMENT RESULTING FROM REDUCED EXERCISE PRICE. In accordance with
the amendment to Section 4(d) of the Warrants set forth in SECTION 2(b) of this
Amendment, no adjustment pursuant to Section 4 of the Warrants shall result from
the reduction in Exercise Price pursuant to the amendment set forth in SECTION
2(a) of this Amendment.

     4. NO OTHER MODIFICATIONS INTENDED. Except as specifically set forth
herein, no other modification of the Warrants is intended or to be implied and
the terms of the Warrants, except as modified herein, shall remain in full force
and effect.

                            [SIGNATURE PAGE FOLLOWS]

                                      -2-
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         IN WITNESS WHEREOF, the Parties hereto have executed this Amendment to
Series C Warrant to Purchase Common Stock effective as of the Effective Date.

COMPANY:                              RAPTOR NETWORKS TECHNOLOGY, INC.,
                                      a Colorado corporation

                                      By: /s/ Bob van Leyen
                                          --------------------------------------
                                          Bob van Leyen, Chief Financial Officer

HOLDERS:                              DMK Investments, LLC

                                      By: /s/ Albert Wong
                                          --------------------------------------
                                          Its: Manager

                                      Transglobal Investments, LLC

                                      By: /s/ Andrew Su
                                          --------------------------------------
                                          Its: Manager Member

                                      Uptrend Investment, Inc.

                                      By: /s/ Catherine Lee Chin
                                          --------------------------------------
                                          Its: Catherine Lee Chin (Pres.)

                                      -3-<PAGE>

                                                                    EXHIBIT 4.10

                                 AMENDMENT NO. 1
                                       TO
                                SERIES D WARRANT
                                       TO
                              PURCHASE COMMON STOCK
                                       OF
                        RAPTOR NETWORKS TECHNOLOGY, INC.

     THIS AMENDMENT NO. 1 TO SERIES D WARRANT TO PURCHASE COMMON STOCK (the
"AMENDMENT") is entered into effective as of December 12, 2005 (the "EFFECTIVE
DATE"), by and among RAPTOR NETWORKS TECHNOLOGY, INC., a Colorado corporation
(the "COMPANY"), and DMK Investments, LLC ("DMK"), Transglobal Investments, LLC
("Transglobal"), and Uptrend Investment, Inc. ("UPTREND") (DMK, Transglobal and
Uptrend each a "HOLDER," and collectively, the "HOLDERS"). The Company and the
Holders may collectively be referred to herein as the "Parties."

                                 R E C I T A L S

     A. The Company issued a Series D Warrant to Purchase Common Stock, dated on
or around June 1, 2004, with an exercise price of $3.50 per share of common
stock, to each of the Holders in the following amounts: DMK, for the purchase of
up to 138,889 shares of the Company's common stock; Transglobal, for the
purchase of up to 277,778 shares of the Company's common stock; and Uptrend, for
the purchase of up to 555,556 shares of the Company's common stock (each a
"WARRANT," and collectively the "WARRANTS").

     B. The Parties entered into a letter agreement, dated August 8, 2005, and
accepted and agreed to by the Holders on September 20, 2005, whereby the Parties
agreed in principle to certain amendments to the Warrants, a copy of which
letter agreement is attached hereto as EXHIBIT A (the "LETTER AGREEMENT").

     C. The Parties desire to formalize the amendments set forth in the Letter
Agreement and amend the Warrants in the manner specifically set forth below.

     NOW, THEREFORE, in consideration of the premises and the mutual promises
herein made, and in consideration of the representations, warranties, and
covenants herein contained, the Parties agree as follows.

     1. CAPITALIZED TERMS. Capitalized terms used but not defined herein shall
have the meanings for such terms that are set forth in the Warrants.

     2. CERTAIN AMENDMENTS.

          (a) AMENDMENT TO SECTION 1(a) - EXERCISE PRICE. The last sentence of
Section 1(a) of the Warrants shall hereby be amended and restated as follows:

<PAGE>

               "The "EXERCISE PRICE" for each Warrant Share purchased by the
          Holder upon the exercise of this Warrant shall be equal to $0.50,
          subject to adjustment for the events specified in Section 6 below)."

          (b) AMENDMENT TO SECTION 6(c)(i)(A). The parenthetical clause at the
end of the first sentence of Section 6(c)(i)(A) of the Warrants shall be amended
and restated as follows:

               "(which, in the case of a deemed issuance or sale, shall be
          calculated in accordance with subparagraph (iii) below."

          (c) AMENDMENT TO SECTION 6(c)(iv). Section 6(c)(iv) of the Warrants is
hereby amended and restated in its entirety to read as follows:

               "(iv) EXCEPTIONS TO ADJUSTMENT OF EXERCISE PRICE. Notwithstanding
          the foregoing, no adjustment to the Exercise Price shall be made
          pursuant to this paragraph (c) upon the issuance of any Excluded
          Securities. For purposes hereof, "EXCLUDED SECURITIES" means (I)
          securities purchased under the Securities Purchase Agreement; (II)
          securities issued upon exercise of the Warrants; (III) shares of
          Common Stock issuable or issued to (x) employees or directors from
          time to time upon the exercise of options, in such case granted or to
          be granted in the discretion of the Board of Directors pursuant to one
          or more stock option plans or restricted stock plans in effect as of
          the Issue Date or adopted after the Issue Date by the independent
          members of the Board of Directors with substantially the same terms as
          such plans in effect as of the Issue Date, and (y) vendors pursuant to
          warrants to purchase Common Stock that are outstanding on the date
          hereof or issued hereafter, provided such issuances are approved by
          the Board of Directors; (IV) shares of Common Stock issued in
          connection with any stock split, stock dividend or recapitalization of
          the Company; (V) shares of Common Stock issued in connection with the
          acquisition by the Company of any corporation or other entity
          occurring after the Effective Date and as long as a fairness opinion
          with respect to such acquisition is rendered by an investment bank of
          national recognition; (VI) shares of Common Stock issued in connection
          with any Convertible Securities or Purchase Rights outstanding on the
          date hereof; (VII) any Common Stock, warrants to purchase Common
          Stock, options to purchase Common Stock, or any other securities that
          the Company issued, or which the Company was obligated to issue, prior
          to or on September 20, 2005; and (VIII) any issuance of Common Stock,
          warrants to purchase Common Stock, options to purchase Common Stock,
          or any other securities issued to investors, brokers, dealers or any
          other persons or entities in conjunction with, and/or pursuant to the
          terms of, the Company's Private Placement Memorandum dated March 15,
          2005, as amended.

     3. NO OTHER MODIFICATIONS INTENDED. Except as specifically set forth
herein, no other modification of the Warrants is intended or to be implied and
the terms of the Warrants, except as modified herein, shall remain in full force
and effect.

                                      -2-
<PAGE>

         IN WITNESS WHEREOF, the Parties hereto have executed this Amendment to
Series D Warrant to Purchase Common Stock effective as of the Effective Date.

COMPANY:                              RAPTOR NETWORKS TECHNOLOGY, INC.,
                                      a Colorado corporation

                                      By: /s/ Bob van Leyen
                                          --------------------------------------
                                          Bob van Leyen, Chief Financial Officer

HOLDERS:                              DMK Investments, LLC

                                      By: /s/ Albert Wong
                                          --------------------------------------
                                          Its: Manager

                                      Transglobal Investments, LLC

                                      By: /s/ Andrew Su
                                          --------------------------------------
                                          Its: Manager Member

                                      Uptrend Investment, Inc.

                                      By: /s/ Catherine Lee Chin
                                          --------------------------------------
                                          Its: Catherine Lee Chin (Pres.)

                                      -3-

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