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                                                                     EXHIBIT 4.1

                      Form of Securities Purchase Agreement

                          SECURITIES PURCHASE AGREEMENT


         This Securities Purchase Agreement (the "Agreement") is made as of
__________, by and between TeraForce Technology Corporation, a Delaware
corporation (the "Company") and __________, the "Investor").

                                    RECITALS

         WHEREAS, the Investor desires to acquire upon the terms and conditions
stated in this Agreement, an aggregate of _______ shares of the Company's Common
Stock, par value $0.01 per share, (the "Common Stock"), in exchange for $______
cash; and

         WHEREAS, the Company believes it is in the best interests of the
Company and the Stockholders to consummate the contemplated transaction; and

         WHEREAS, the Company and the Investor are executing and delivering this
Agreement in reliance upon the exemption from securities registration afforded
by Rule 506 of Regulation D ("Regulation D") as promulgated by the United States
Securities and Exchange Commission (the "SEC") under the Securities Act of 1933,
as amended (the "1933 Act");

         NOW, THEREFORE, in consideration of the mutual agreements and covenants
set forth herein, the Company and the Investor hereby agree to the terms and
conditions hereinafter set forth, as follows:

                                    AGREEMENT

                                    ARTICLE 1
                                  DEFINED TERMS

         As used herein, the following terms shall have the following meanings:

         (a) "1933 Act" shall have the meaning set forth in the Recitals to this
Agreement.

         (b) "1934 Act" shall have the meaning set forth in Article 3.5 of this
Agreement.

         (c) "AAA" shall have the meaning set forth in Article 8.4 of this
Agreement.

         (d) "Agreement" shall have the meaning set forth in the introduction to
this Agreement.

         (g) "Business" shall mean the business currently conducted by the
Company and its subsidiaries involving the design, development, production and
sale of computing products, optical networking equipment and other technology
related products, including providing related services.



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         (h) "Business Day" shall mean any day except Saturday, Sunday and any
day which shall be a legal holiday or a day on which banking institutions in the
state of Texas generally are authorized or required by law or other government
actions to close.

         (i) "Common Stock" shall mean the Company's common stock, par value
$0.01 per share.

         (j) "Company" shall have the meaning set forth in the introduction to
this Agreement.

         (k) "Closing Condition" shall have the meaning set forth in Article
7.1 of this Agreement.

         (l) "GAAP" shall mean generally accepted accounting principles in the
United States of America in effect from time to time.

         (m) "Investor" shall have the meaning set forth in the introduction to
this Agreement.

         (o) "Person" or "Persons" shall mean any individual, corporation,
limited liability company, voluntary association, partnership, joint venture,
trust, unincorporated organization or government or any agency, instrumentality
or political subdivision thereof, or any other form of entity.

         (p) "Registration Rights Agreement" shall mean the Registration Rights
Agreement executed an even date herewith, by and among the Company and the
Investors.

         (q) "Regulation D" shall have the meaning set forth in the Recitals to
this Agreement.

         (r) "SEC" shall mean the Securities and Exchange Commission or any
successor governmental authority.

         (s) "SEC Documents" shall have the meaning set forth in Article 3.5 of
this Agreement.

         (t) "Shares" shall have the meaning set forth in Article 2.1 of this
Agreement.

         (u) "Stockholders" shall mean the stockholders of the Common Stock of
the Company as of the date hereof.


                                    ARTICLE 2
                         PURCHASE AND SALE OF THE SHARES

         2.1 Issuance of Shares. Upon the terms and subject to the conditions
contained herein, and on the basis of the representations, warranties, covenants
and agreements set forth herein, the Company agrees to issue to the Investor,
and the Investor agrees to acquire, _________ shares of Common Stock in exchange
for $_______ in cash.



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                                    ARTICLE 3
                  REPRESENTATIONS AND WARRANTIES OF THE COMPANY

         The Company represents and warrants to the Investors, as of the date
hereof, as follows:

         3.1 Authorization. The execution, delivery and performance by the
Company of this Agreement and the Registration Rights Agreement, and the
consummation by the Company of the transaction contemplated hereby and thereby,
have been duly authorized by all necessary corporate action. This Agreement and
the Registration Rights Agreement have been duly executed and delivered by the
Company and constitute valid and binding obligations of the Company enforceable
in accordance with their respective terms, except (i) as limited by applicable
bankruptcy, insolvency, reorganization, moratorium and other laws of general
application affecting enforcement of creditors' rights generally, (ii) as
limited by laws relating to the availability of specific performance, injunctive
relief or other equitable remedies, and (iii) to the extent that the
indemnification provisions and the choice of law provisions contained in this
Agreement and the Registration Rights Agreement may be limited by applicable
laws or deemed against public policy. The execution, delivery and performance of
the transactions contemplated by this Agreement and the Registration Rights
Agreement and compliance with their provisions by the Company will not violate
any provision of law and will not conflict with or result in any breach of any
of the terms, conditions or provisions of, or constitute a default under, or
require a consent or waiver under, (x) the Company's Amended and Restated
Certificate of Incorporation or Restated Bylaws (each as amended to date) or (y)
any indenture, lease, agreement or other instrument to which the Company is a
party or by which it or any of its properties is bound, or any decree, judgment,
order, statute, rule or regulation applicable to the Company which conflict or
breach would result in a Material Adverse Effect.

         3.2 Organization and Qualification. The Company is a corporation
organized under the laws of the state of Delaware, has power and authority to
own its properties and assets and to carry on its business as it is now being
conducted, and is duly qualified to do business and is in good standing in each
jurisdiction in which its ownership of property or the conduct of its business
requires such qualification, except for jurisdictions in which such failure to
be so qualified or to be in good standing would not have a Material Adverse
Effect.

         3.3. Issuance by the Company. Consummation of the transactions
contemplated hereby will transfer to the Investor good, valid and marketable
title to the Shares, free and clear of any liens, claims or encumbrances, except
as set forth in the Registration Rights Agreement, to the extent applicable, or
in any legend which appears on any certificate representing any of the Shares.

         3.4 Issuance of Shares. The issuance and delivery of the shares of
Common Stock have been at or prior to the date hereof, duly authorized by all
necessary corporate action on the part of the Company. No person has any right
of first refusal or any preemptive rights in connection with the issuance and
sale of the Shares. The shares of Common Stock will be duly and validly issued,
fully paid and non-assessable, with no personal liability attaching ownership
thereof, will be free and clear of all liens, charges, restrictions, claims and
encumbrances imposed by or through the Company and will be free of restrictions
on transfer other than restrictions on transfer under this Agreement, the
Registration Rights Agreement and under applicable state and federal securities
laws.

         3.5 SEC Documents; Financial Statements. Since December 31, 2001, the
Company has filed all reports, schedules, forms, statements and other documents
required to be filed by it with the SEC pursuant to the reporting requirements
of the Securities Exchange Act of 1934, as amended (the "1934 Act") (all of the
foregoing filed prior to the date hereof and all exhibits included therein and
financial



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statements and schedules thereto and documents incorporated by reference therein
being hereinafter referred to as the "SEC Documents"). As of their respective
dates, the SEC Documents complied in all material respects with the requirements
of the 1934 Act and the rules and regulations of the SEC promulgated thereunder
applicable to the SEC Documents, and none of the SEC Documents, at the time they
were filed with the SEC, contained any untrue statement of a material fact or
omitted to state a material fact required to be stated therein or necessary in
order to make the statements therein, in light of the circumstances under which
they were made, not misleading. All material agreements to which the Company is
a party or to which the property or assets of the Company are subject have been
filed as exhibits to the SEC Documents as required. As of their respective
dates, the financial statements of the Company included in the SEC Documents
complied as to form in all material respects with applicable accounting
requirements and the published rules and regulations of the SEC with respect
thereto. Such financial statements have been prepared in accordance with GAAP,
consistently applied, during the periods involved (except (i) as may be
otherwise indicated in such financial statements or the notes thereto, or (ii)
in the case of unaudited interim statements, to the extent they may exclude
footnotes or may be condensed or summary statements) and fairly present in all
material respects the consolidated financial position of the Company and its
subsidiaries as of the dates thereof and the results of their operations and
cash flows for the periods then ended (subject, in the case of unaudited
statements, to normal year-end immaterial audit adjustments).

                                    ARTICLE 4
                   REPRESENTATIONS AND WARRANTIES OF INVESTOR

         The Investor represents and warrant to the Company as of the date
hereof as follows:

         4.1 Organization. Investor has all requisite power and authority to
enter into this Agreement and to consummate the transactions contemplated
hereby.

         4.2 Authority. The execution and delivery of this Agreement, and the
consummation of the transactions contemplated hereby by the Investor have been
duly and validly authorized by all requisite action on the part of the Investor.
This Agreement has been duly executed and delivered by Investor and constitutes
the valid and binding obligations of Investor, enforceable against the Investors
in accordance with its terms except as the same may be limited by equitable
principles and by bankruptcy, insolvency, moratorium, and other laws of general
application affecting the enforcement of creditors' rights.

         4.3 Investment Representations. The Investor is acquiring the Shares
for investment purposes only and not with a view to the resale or distribution
of all or any part thereof. The Investor acknowledges that the Shares have not
been registered under the 1933 Act, or the securities or "blue sky" laws of any
state or other domestic or foreign jurisdiction, and that none of such
securities may be sold, transferred or otherwise disposed of except pursuant to
an effective registration statement thereunder or an applicable exemption
therefrom.

         4.4 Accredited Investor. The Investor (a) has such knowledge and
experience in financial and business matters that such Investor is capable of
evaluating the merits and risks of his or her investment in the Shares and has
the financial ability to assume the monetary risk associated therewith; (b) is
able to bear the complete loss of his or her investment in the Shares; (c) has
received such documents and information from the Company as such Investor has
requested and has had the opportunity to ask questions of, and receive answers
from, the Company and the terms and conditions of the offering of the Shares and
to obtain additional information; (d) is an "accredited investor" as defined in
Rule 501(a) of Regulation D promulgated under the 1933 Act; and (e) is not
relying upon any statements or instruments made or issued by any person other
than the Company in making a decision to invest in the Shares.



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                                    ARTICLE 5
                            COVENANTS OF THE COMPANY

         5.1 Registration Rights Agreement. Upon the closing of this
transaction, the Company will enter into a Registration Rights Agreement with
the Investor in substantially the form of Exhibit A. Such Registration Rights
Agreement will provide that the Company will file a shelf registration covering
the resale of the Shares.


                                    ARTICLE 6
                                     CLOSING

         6.1 Closing, Delivery. Any time on or before ___________ the Investor
will deliver to the Company $______ in cash in exchange for which the Company
will deliver to the Investor _______ shares of Common Stock.

Closing shall occur at the Company's offices in Richardson, Texas, or such other
location as the parties may mutually agree. Payment to the Company shall be made
by wire transfer to the following account:

                  BankOne, NA,
                  ABA #111000614
                  TeraForce Technology Corporation
                  Master Concentration Account
                  Acct. No. 1571582582


                                    ARTICLE 7
                                  MISCELLANEOUS

         7.1 Severability. Whenever possible, each provision of this Agreement
shall be interpreted so as to be effective and valid under applicable law. If
any provision of this Agreement is held to be prohibited by or invalid under
applicable law, such provision shall be ineffective only to the extent of such
prohibition or invalidity, without invalidating the remainder of this Agreement.

         7.2 Headings. The descriptive headings of this Agreement are inserted
for convenience of reference only and do not constitute a part of and shall not
affect the interpretation of this Agreement.

         7.3 Notices. All notices and other communications required or permitted
hereunder shall be in writing and shall be deemed to have been sufficiently
given (a) if sent by facsimile transmission, upon telephonic confirmation of
receipt, (b) if sent by registered or certified mail, upon the sooner of the
expiration of five (5) days after deposit in the post office facilities properly
addressed with postage prepaid or acknowledgement of receipt, (c) if personally
delivered, when delivered to the party to whom notice is sent, or (d) if
delivered by a recognized overnight courier, upon receipt evidencing proof of
delivery, addressed to the appropriate party or parties, at the address of such
party set forth below, (or at such other address as such party may designate by
written notice furnished to all other parties in accordance herewith):



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         (a) if to the Investor:




         (b) if to the Company:

                  TeraForce Technology Corporation
                  1240 E. Campbell Road
                  Richardson, TX  75081
                  Telecopier: (469) 330-4972
                  Telephone: (469)330-4960
                  Attn: Robert P. Capps

         7.4 Dispute Resolution. All disputes and claims arising out of or
relating to this Agreement that are not resolved pursuant to an agreement of the
parties shall be arbitrated in accordance with the Commercial Arbitration Rules
of the American Arbitration Association ("AAA"), and judgment upon any
arbitration award shall be binding and may be entered in any court or other
tribunal having jurisdiction thereof, the parties hereby consenting to the
jurisdiction of such courts for this purpose. If the parties herein cannot agree
upon an arbitrator, one shall be appointed by the AAA who shall be neutral and
experienced in the subject matter of the dispute. The arbitrator's award shall
be binding and in writing. All arbitration proceedings shall be conducted in
Dallas County, Texas.

         7.5 Governing Law. This Agreement shall be construed in accordance
with, and governed in all respects by, the laws of the State of Texas, without
regard to the conflict of laws provisions thereof.

         7.6 Entire Agreement. This Agreement constitutes the entire agreement
of the parties concerning the transactions contemplated hereby, and supersede
all prior agreements and understandings, written or oral, regarding the subject
matter hereof.

         7.7 Expenses. Except as otherwise provided herein, the Company and the
Investor shall each bear their own expenses and legal fees in connection with
the consummation of this transaction.

         7.8 Counterparts. This Agreement may be executed in any number of
counterparts, each of which shall be an original, but all of which together
shall constitute one instrument. This Agreement shall become effective, as of
the date specified in the opening paragraph, upon the execution by all of the
parties of at least one counterpart hereof, and it shall not be necessary that
any single counterpart bear the signatures of all parties. Execution and
delivery of this Agreement by delivery of a facsimile copy bearing the facsimile
signature of a party shall constitute a valid and binding execution and delivery
of this Agreement by such party. Such facsimile copies shall constitute
enforceable original documents.

         7.9 Corporate Securities Law. The sale of the securities which are the
subject of this Agreement has not been qualified with any state regulatory
authority having jurisdiction thereof and the issuance of such securities or the
payment or receipt of any part of the consideration therefor prior to such
qualification or in the absence of exemption from such qualification is
unlawful. the rights of all parties to this Agreement are expressly conditioned
upon such qualification being obtained or an exemption from such qualification
being available.



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         IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date first above written.


                                       TERAFORCE TECHNOLOGY CORPORATION


                                       By:
                                          --------------------------------------
                                       Name: Robert P. Capps
                                       Title: Executive Vice President and
                                                Chief Financial Officer


                                       INVESTOR:


                                       -----------------------------------------



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