Document:

EXHIBIT A

NEITHER THIS SECURITY NOR THE SECURITIES INTO WHICH THIS SECURITY IS EXERCISABLE
HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE
SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM
REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES
ACT"), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN
EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR PURSUANT TO AN
AVAILABLE EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION
REQUIREMENTS OF THE SECURITIES ACT AND IN ACCORDANCE WITH APPLICABLE STATE
SECURITIES LAWS AS EVIDENCED BY A LEGAL OPINION OF COUNSEL TO THE TRANSFEROR TO
SUCH EFFECT, THE SUBSTANCE OF WHICH SHALL BE REASONABLY ACCEPTABLE TO THE
COMPANY. THIS SECURITY AND THE SECURITIES ISSUABLE UPON EXERCISE OF THIS
SECURITY MAY BE PLEDGED IN CONNECTION WITH A BONA FIDE MARGIN ACCOUNT OR OTHER
LOAN SECURED BY SUCH SECURITIES.

                                                    Issue Date: ________________

           [FORM OF CLASS A AND CLASS B] COMMON STOCK PURCHASE WARRANT

                To Purchase __________ Shares of Common Stock of

                                CYBRA CORPORATION

      THIS COMMON STOCK PURCHASE WARRANT (the "Warrant") certifies that, for
value received, _______________________________________ (the "Holder"), is
entitled, upon the terms and subject to the limitations on exercise and the
conditions hereinafter set forth, at any time on or after the Issue Date (the
"Initial Exercise Date") and on or prior to the close of business on the fifth
year anniversary of the Initial Exercise Date (the "Termination Date") but not
thereafter, to subscribe for and purchase from CYBRA Corporation, a New York
corporation (the "Company"), up to ______(1) shares (the "Warrant Shares") of
Common Stock, par value no per share, of the Company (the "Common Stock"). The
purchase price of one share of Common Stock under this Warrant shall be equal to
the Exercise Price, as defined in Section 2(b).

      Section 1. Definitions. Capitalized terms used and not otherwise defined
herein shall have the meanings set forth in that certain Securities Purchase
Agreement (the "Purchase Agreement"), dated March ___, 2006, among the Company
and the purchasers signatory thereto.

      Section 2. Exercise.

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      a) Exercise of Warrant. Exercise of the purchase rights represented by
this Warrant may be made, in whole or in part, at any time or times on or after
the Initial Exercise Date and on or before the Termination Date by delivery to
the Company of a duly executed facsimile copy of the Notice of Exercise Form
annexed hereto (or such other office or agency of the Company as it may
designate by notice in writing to the registered Holder at the address of such
Holder appearing on the books of the Company); provided, however, within 5
Business Days of the date said Notice of Exercise is delivered to the Company,
the Holder shall have surrendered this Warrant to the Company and the Company
shall have received payment of the aggregate Exercise Price of the shares
thereby purchased by wire transfer or cashier's check drawn on a United States
bank.

      b) Exercise Price. The exercise price of the Common Stock under this
Warrant shall be [A Warrant: $0.75; B Warrant: $1.75] (the "Exercise Price").

      c) Reduction of Exercise Price. The Company may reduce the Exercise Price
of some or all of the Warrants, permanently or temporarily upon five Business
Days notice to the Holder without thereby requiring adjustment of the Exercise
Price or Conversion Price of any other Common Stock Equivalent or Debenture held
by the Holder.

      d) Exercise Limitations; Holder's Restrictions. At any time after the
Common Stock is registered under Section 12 of the Exchange Act, the Holder
shall not have the right to exercise any portion of this Warrant, pursuant to
Section 2(c) or otherwise, to the extent that after giving effect to such
issuance after exercise, such Holder (together with such Holder's affiliates),
as set forth on the applicable Notice of Exercise, would beneficially own in
excess of 4.99% of the number of shares of the Common Stock outstanding
immediately after giving effect to such issuance. For purposes of the foregoing
sentence, the number of shares of Common Stock beneficially owned by such Holder
and its affiliates shall include the number of shares of Common Stock issuable
upon exercise of this Warrant with respect to which the determination of such
sentence is being made, but shall exclude the number of shares of Common Stock
which would be issuable upon (A) exercise of the remaining, nonexercised portion
of this Warrant beneficially owned by such Holder or any of its affiliates and
(B) exercise or conversion of the unexercised or nonconverted portion of any
other securities of the Company (including, without limitation, any other
Debentures or Warrants) subject to a limitation on conversion or exercise
analogous to the limitation contained herein beneficially owned by such Holder
or any of its affiliates. Except as set forth in the preceding sentence, for
purposes of this Section 2(d), beneficial ownership shall be calculated in
accordance with Section 13(d) of the Exchange Act, it being acknowledged by a
Holder that the Company is not representing to such Holder that such calculation
is in compliance with Section 13(d) of the Exchange Act and such Holder is
solely responsible for any schedules required to be filed in accordance
therewith. To the extent that the limitation contained in this Section 2(d)
applies, the determination of whether this Warrant is exercisable (in relation
to other securities owned by such Holder) and of which a portion of this Warrant
is exercisable shall be in the sole discretion of a Holder, and the submission
of a Notice of Exercise shall be deemed to be each Holder's determination of
whether this Warrant is exercisable (in relation to other securities owned by
such Holder) and of which portion of this Warrant is exercisable, in each case
subject to such aggregate percentage limitation, and the Company shall have no
obligation to verify or confirm the accuracy of such determination. For purposes
of this Section 2(d), in determining the number of outstanding shares of Common

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Stock, a Holder may rely on the number of outstanding shares of Common Stock as
reflected in (x) Schedule 3.1(g) to the Purchase Agreement, (y) a more recent
public announcement by the Company or (z) any other notice by the Company or the
Company's Transfer Agent setting forth the number of shares of Common Stock
outstanding. Upon the written or oral request of a Holder, the Company shall
within two Business Days confirm orally and in writing to such Holder the number
of shares of Common Stock then outstanding. In any case, the number of
outstanding shares of Common Stock shall be determined after giving effect to
the conversion or exercise of securities of the Company, including this Warrant,
by such Holder or its affiliates since the date as of which such number of
outstanding shares of Common Stock was reported. The provisions of this Section
2(d) may be waived by such Holder, at the election of such Holder, upon not less
than 61 days' prior notice to the Company, and the provisions of this Section
2(d) shall continue to apply until such 61st day (or such later date, as
determined by such Holder, as may be specified in such notice of waiver). No
amendment by the Holder may have the effect of increasing the 4.99% figure above
to greater than 9.99%.

      e) Mechanics of Exercise.

            i. Authorization of Warrant Shares. The Company covenants that all
      Warrant Shares which may be issued upon the exercise of the purchase
      rights represented by this Warrant will, upon exercise of the purchase
      rights represented by this Warrant, be duly authorized, validly issued,
      fully paid and nonassessable and free from all taxes, liens and charges in
      respect of the issue thereof (other than taxes in respect of any transfer
      occurring contemporaneously with such issue).

            ii. Delivery of Certificates Upon Exercise. Certificates for shares
      purchased hereunder shall be transmitted by the transfer agent of the
      Company to the Holder by crediting the account of the Holder's prime
      broker with the Depository Trust Company through its Deposit Withdrawal
      Agent Commission ("DWAC") system if the Company is a participant in such
      system, and otherwise by physical delivery to the address specified by the
      Holder in the Notice of Exercise within 3 Business Days from the delivery
      to the Company of the Notice of Exercise Form, surrender of this Warrant
      and payment of the aggregate Exercise Price as set forth above ("Warrant
      Share Delivery Date"). This Warrant shall be deemed to have been exercised
      on the date the Exercise Price is received by the Company. The Warrant
      Shares shall be deemed to have been issued, and Holder or any other person
      so designated to be named therein shall be deemed to have become a holder
      of record of such shares for all purposes, as of the date the Warrant has
      been exercised by payment to the Company of the Exercise Price and all
      taxes required to be paid by the Holder, if any, pursuant to Section
      2(e)(vii) prior to the issuance of such shares, have been paid.

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            iii. Delivery of New Warrants Upon Exercise. If this Warrant shall
      have been exercised in part, the Company shall, at the time of delivery of
      the certificate or certificates representing Warrant Shares, deliver to
      Holder a new Warrant evidencing the rights of Holder to purchase the
      unpurchased Warrant Shares called for by this Warrant, which new Warrant
      shall in all other respects be identical with this Warrant.

            iv. Rescission Rights. If the Company fails to cause its transfer
      agent to transmit to the Holder a certificate or certificates representing
      the Warrant Shares pursuant to this Section 2(e)(iv) by the Warrant Share
      Delivery Date, then the Holder will have the right to rescind such
      exercise.

            v. Compensation for Buy-In on Failure to Timely Deliver Certificates
      Upon Exercise. In addition to any other rights available to the Holder, if
      the Company fails to cause its transfer agent to transmit to the Holder a
      certificate or certificates representing the Warrant Shares pursuant to an
      exercise on or before the Warrant Share Delivery Date, and if after such
      date the Holder is required by its broker to purchase (in an open market
      transaction or otherwise) shares of Common Stock to deliver in
      satisfaction of a sale by the Holder of the Warrant Shares which the
      Holder anticipated receiving upon such exercise (a "Buy-In"), then the
      Company shall (1) pay in cash to the Holder the amount by which (x) the
      Holder's total purchase price (including brokerage commissions, if any)
      for the shares of Common Stock so purchased exceeds (y) the amount
      obtained by multiplying (A) the number of Warrant Shares that the Company
      was required to deliver to the Holder in connection with the exercise at
      issue times (B) the price at which the sell order giving rise to such
      purchase obligation was executed, and (2) at the option of the Holder,
      either reinstate the portion of the Warrant and equivalent number of
      Warrant Shares for which such exercise was not honored or deliver to the
      Holder the number of shares of Common Stock that would have been issued
      had the Company timely complied with its exercise and delivery obligations
      hereunder. For example, if the Holder purchases Common Stock having a
      total purchase price of $11,000 to cover a Buy-In with respect to an
      attempted exercise of shares of Common Stock with an aggregate sale price
      giving rise to such purchase obligation of $10,000, under clause (1) of
      the immediately preceding sentence the Company shall be required to pay
      the Holder $1,000. The Holder shall provide the Company written notice
      indicating the amounts payable to the Holder in respect of the Buy-In,
      together with applicable confirmations and other evidence reasonably
      requested by the Company. Nothing herein shall limit a Holder's right to
      pursue any other remedies available to it hereunder, at law or in equity
      including, without limitation, a decree of specific performance and/or
      injunctive relief with respect to the Company's failure to timely deliver
      certificates representing shares of Common Stock upon exercise of the
      Warrant as required pursuant to the terms hereof.

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            vi. No Fractional Shares or Scrip. No fractional shares or scrip
      representing fractional shares shall be issued upon the exercise of this
      Warrant. As to any fraction of a share which Holder would otherwise be
      entitled to purchase upon such exercise, the Company shall pay a cash
      adjustment in respect of such final fraction in an amount equal to such
      fraction multiplied by the Exercise Price.

            vii. Charges, Taxes and Expenses. Issuance of certificates for
      Warrant Shares shall be made without charge to the Holder for any issue or
      transfer tax or other incidental expense in respect of the issuance of
      such certificate, all of which taxes and expenses shall be paid by the
      Company, and such certificates shall be issued in the name of the Holder
      or in such name or names as may be directed by the Holder; provided,
      however, that in the event certificates for Warrant Shares are to be
      issued in a name other than the name of the Holder, this Warrant when
      surrendered for exercise shall be accompanied by the Assignment Form
      attached hereto duly executed by the Holder; and the Company may require,
      as a condition thereto, the payment of a sum sufficient to reimburse it
      for any transfer tax incidental thereto.

            viii. Closing of Books. The Company will not close its stockholder
      books or records in any manner which prevents the timely exercise of this
      Warrant, pursuant to the terms hereof.

Section 3. Certain Adjustments.

      a) Stock Dividends and Splits. If the Company, at any time while this
Warrant is outstanding: (A) pays a stock dividend or otherwise make a
distribution or distributions on shares of its Common Stock or any other equity
or equity equivalent securities payable in shares of Common Stock (which, for
avoidance of doubt, shall not include any shares of Common Stock issued by the
Company pursuant to this Warrant), (B) subdivides outstanding shares of Common
Stock into a larger number of shares, (C) combines (including by way of reverse
stock split) outstanding shares of Common Stock into a smaller number of shares,
or (D) issues by reclassification of shares of the Common Stock any shares of
capital stock of the Company, then in each case the Exercise Price shall be
multiplied by a fraction of which the numerator shall be the number of shares of
Common Stock (excluding treasury shares, if any) outstanding immediately before
such event and of which the denominator shall be the number of shares of Common
Stock outstanding immediately after such event and the number of shares issuable
upon exercise of this Warrant shall be proportionately adjusted. Any adjustment
made pursuant to this Section 3(a) shall become effective immediately after the
record date for the determination of stockholders entitled to receive such
dividend or distribution and shall become effective immediately after the
effective date in the case of a subdivision, combination or re-classification.

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      b) Subsequent Equity Sales. If the Company or any Subsidiary thereof, as
applicable, at any time while this Warrant is outstanding, shall offer, sell,
grant any option to purchase or offer, sell or grant any right to reprice its
securities, or otherwise dispose of or issue any Common Stock or Common Stock
Equivalents entitling any Person to acquire shares of Common Stock, at an
effective price per share less than the then Exercise Price (such lower price,
the "Base Share Price" and such issuances collectively, a "Dilutive Issuance"),
as adjusted hereunder (if the holder of the Common Stock or Common Stock
Equivalents so issued shall at any time, whether by operation of purchase price
adjustments, reset provisions, floating conversion, exercise or exchange prices
or otherwise, or due to warrants, options or rights per share which is issued in
connection with such issuance, be entitled to receive shares of Common Stock at
an effective price per share which is less than the Exercise Price, such
issuance shall be deemed to have occurred for less than the Exercise Price on
such date of the adjustment of the Dilutive Issuance), then the Exercise Price
shall be reduced and only reduced to equal the Base Share Price. The number of
Warrant Shares issuable hereunder after a Dilutive Issuance shall be increased
such that the aggregate Exercise Price payable hereunder, after taking into
account the decrease in the Exercise Price, shall be equal to the aggregate
Exercise Price prior to such adjustment. Notwithstanding the foregoing, no
adjustments shall be made, paid or issued under this Section 3(b) in respect of
an Exempt Issuance. The Company shall notify the Holder in writing, no later
than the Trading Day following the issuance of any Common Stock or Common Stock
Equivalents subject to this section, indicating therein the applicable issuance
price, or of applicable reset price, exchange price, conversion price and other
pricing terms (such notice the "Dilutive Issuance Notice"). For purposes of
clarification, whether or not the Company provides a Dilutive Issuance Notice
pursuant to this Section 3(b), upon the occurrence of any Dilutive Issuance,
after the date of such Dilutive Issuance the Holder is entitled to receive a
number of Warrant Shares based upon the Base Share Price regardless of whether
the Holder accurately refers to the Base Share Price in the Notice of Exercise.
[Section 3(b) will be deleted for the Class B Warrant].

      c) Pro Rata Distributions. If the Company, at any time prior to the
Termination Date, shall distribute to all holders of Common Stock (and not to
Holders of the Warrants) evidences of its indebtedness or assets (including cash
and cash dividends) or rights or warrants to subscribe for or purchase any
security other than the Common Stock [which shall be subject to Section 3(b)
(will be deleted for Class B Warrant), then in each such case the Exercise Price
shall be adjusted by multiplying the Exercise Price in effect immediately prior
to the record date fixed for determination of stockholders entitled to receive
such distribution by a fraction of which the denominator shall be the VWAP
determined as of the record date mentioned above (if the VWAP shall then be
determinable and otherwise the fair market value per share as determined by the
Board of Directors in good faith), and of which the numerator shall be such VWAP
on such record date less the then per share fair market value at such record
date of the portion of such assets or evidence of indebtedness so distributed
applicable to one outstanding share of the Common Stock as determined by the
Board of Directors in good faith. In either case the adjustments shall be
described in a statement provided to the Holder of the portion of assets or
evidences of indebtedness so distributed or such subscription rights applicable
to one share of Common Stock. Such adjustment shall be made whenever any such
distribution is made and shall become effective immediately after the record
date mentioned above.

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      d) Fundamental Transaction. If, at any time while this Warrant is
outstanding, (A) the Company effects any merger or consolidation of the Company
with or into another Person, (B) the Company effects any sale of all or
substantially all of its assets in one or a series of related transactions, (C)
any tender offer or exchange offer or any other transaction (whether by the
Company or another Person) is completed pursuant to which any one or more
holders of Common Stock are permitted to tender or exchange their shares for
other securities, cash or property, or (D) the Company effects any
reclassification of the Common Stock or any compulsory share exchange pursuant
to which the Common Stock is effectively converted into or exchanged for other
securities, cash or property (in any such case, a "Fundamental Transaction"),
then, upon any subsequent exercise of this Warrant, the Holder shall have the
right to receive, for each Warrant Share that would have been issuable upon such
exercise immediately prior to the occurrence of such Fundamental Transaction, at
the option of the Holder, (a) upon exercise of this Warrant, the number of
shares of Common Stock of the successor or acquiring corporation or of the
Company, if it is the surviving corporation, and any additional consideration
(the "Alternate Consideration") receivable upon or as a result of such
reorganization, reclassification, merger, consolidation or disposition of assets
by a Holder of the number of shares of Common Stock for which this Warrant is
exercisable immediately prior to such event or (b) if the Company is acquired by
way of asset purchase, stock purchase, merger or any other transaction
regardless of form, in an all cash transaction, cash equal to the value of this
Warrant as determined in accordance with the Black-Scholes option pricing
formula. For purposes of any such exercise, the determination of the Exercise
Price shall be appropriately adjusted to apply to such Alternate Consideration
based on the amount of Alternate Consideration issuable in respect of one share
of Common Stock in such Fundamental Transaction, and the Company shall apportion
the Exercise Price among the Alternate Consideration in a reasonable manner
reflecting the relative value of any different components of the Alternate
Consideration. If holders of Common Stock are given any choice as to the
securities, cash or property to be received in a Fundamental Transaction, then
the Holder shall be given the same choice as to the Alternate Consideration it
receives upon any exercise of this Warrant following such Fundamental
Transaction. To the extent necessary to effectuate the foregoing provisions, any
successor to the Company or surviving entity in such Fundamental Transaction
shall issue to the Holder a new warrant consistent with the foregoing provisions
and evidencing the Holder's right to exercise such warrant into Alternate
Consideration. The terms of any agreement pursuant to which a Fundamental
Transaction is effected shall include terms requiring any such successor or
surviving entity to comply with the provisions of this Section 3(d) and insuring
that this Warrant (or any such replacement security) will be similarly adjusted
upon any subsequent transaction analogous to a Fundamental Transaction.

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      e) Calculations. All calculations under this Section 3 shall be made to
the nearest cent or the nearest 1/100th of a share, as the case may be. For
purposes of this Section 3, the number of shares of Common Stock deemed to be
issued and outstanding as of a given date shall be the sum of the number of
shares of Common Stock (excluding treasury shares, if any) issued and
outstanding.

      f) Voluntary Adjustment By Company. The Company may at any time during the
term of this Warrant reduce the then current Exercise Price to any amount and
for any period of time deemed appropriate by the Board of Directors of the
Company.

      g) Notice to Holders.

            i. Adjustment to Exercise Price. Whenever the Exercise Price is
      adjusted pursuant to this Section 3, the Company shall promptly mail to
      each Holder a notice setting forth the Exercise Price after such
      adjustment and setting forth a brief statement of the facts requiring such
      adjustment. If the Company issues a variable rate security, despite the
      prohibition thereon in the Purchase Agreement, the Company shall be deemed
      to have issued Common Stock or Common Stock Equivalents at the lowest
      possible conversion or exercise price at which such securities may be
      converted or exercised in the case of a Variable Rate Transaction (as
      defined in the Purchase Agreement).

            ii. Notice to Allow Exercise by Holder. If (A) the Company shall
      declare a dividend (or any other distribution) on the Common Stock; (B)
      the Company shall declare a special nonrecurring cash dividend on or a
      redemption of the Common Stock; (C) the Company shall authorize the
      granting to all holders of the Common Stock rights or warrants to
      subscribe for or purchase any shares of capital stock of any class or of
      any rights; (D) the approval of any stockholders of the Company shall be
      required in connection with any reclassification of the Common Stock, any
      consolidation or merger to which the Company is a party, any sale or
      transfer of all or substantially all of the assets of the Company, of any
      compulsory share exchange whereby the Common Stock is converted into other
      securities, cash or property; (E) the Company shall authorize the
      voluntary or involuntary dissolution, liquidation or winding up of the
      affairs of the Company; then, in each case, the Company shall cause to be
      mailed to the Holder at its last address as it shall appear upon the
      Warrant Register of the Company, at least 20 calendar days prior to the
      applicable record or effective date hereinafter specified, a notice
      stating (x) the date on which a record is to be taken for the purpose of
      such dividend, distribution, redemption, rights or warrants, or if a
      record is not to be taken, the date as of which the holders of the Common
      Stock of record to be entitled to such dividend, distributions,

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      redemption, rights or warrants are to be determined or (y) the date on
      which such reclassification, consolidation, merger, sale, transfer or
      share exchange is expected to become effective or close, and the date as
      of which it is expected that holders of the Common Stock of record shall
      be entitled to exchange their shares of the Common Stock for securities,
      cash or other property deliverable upon such reclassification,
      consolidation, merger, sale, transfer or share exchange; provided, that
      the failure to mail such notice or any defect therein or in the mailing
      thereof shall not affect the validity of the corporate action required to
      be specified in such notice. The Holder is entitled to exercise this
      Warrant during the 20-day period commencing on the date of such notice to
      the effective date of the event triggering such notice.

            iii. Within 2 Business Days prior to consummating a transaction
      pursuant to which a Lowest IPO Price is determined, the Company shall
      provide the Holder with written notice of such price and the Holder shall
      have the right, anytime thereafter, to require the Company to issue a new
      warrant with such price reflected therein.

      h) Non-Adjustment Event. The Company may reduce the Exercise Price for
some or all of the Warrant Shares on a temporary or permanent basis on ten days
prior notice to the Holder, provided such modification is effective as to all
outstanding Warrants of the same class. Such modification or the exercise of
modified Warrants shall not be deemed a Dilutive Issuance nor give rise to the
adjustments described in Section 3 of this Warrant.

Section 4. Transfer of Warrant.

      a) Transferability. Subject to compliance with any applicable securities
laws and the conditions set forth in Sections 5(a) and 4(d) hereof and to the
provisions of Sections 4.1 and 5.7 of the Purchase Agreement, this Warrant and
all rights hereunder are transferable, in whole or in part, upon surrender of
this Warrant at the principal office of the Company, together with a written
assignment of this Warrant substantially in the form attached hereto duly
executed by the Holder or its agent or attorney and funds sufficient to pay any
transfer taxes payable upon the making of such transfer. Upon such surrender
and, if required, such payment, the Company shall execute and deliver a new
Warrant or Warrants in the name of the assignee or assignees and in the
denomination or denominations specified in such instrument of assignment, and
shall issue to the assignor a new Warrant evidencing the portion of this Warrant
not so assigned, and this Warrant shall promptly be cancelled. A Warrant, if
properly assigned, may be exercised by a new holder for the purchase of Warrant
Shares without having a new Warrant issued.

      b) New Warrants. This Warrant may be divided or combined with other
Warrants upon presentation hereof at the aforesaid office of the Company,
together with a written notice specifying the names and denominations in which
new Warrants are to be issued, signed by the Holder or its agent or attorney.
Subject to compliance with Section 4(a), as to any transfer which may be
involved in such division or combination, the Company shall execute and deliver
a new Warrant or Warrants in exchange for the Warrant or Warrants to be divided
or combined in accordance with such notice.

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      c) Warrant Register. The Company shall register this Warrant, upon records
to be maintained by the Company for that purpose (the "Warrant Register"), in
the name of the record Holder hereof from time to time. The Company may deem and
treat the registered Holder of this Warrant as the absolute owner hereof for the
purpose of any exercise hereof or any distribution to the Holder, and for all
other purposes, absent actual notice to the contrary.

      d) Transfer Restrictions. If, at the time of the surrender of this Warrant
in connection with any transfer of this Warrant, the transfer of this Warrant
shall not be registered pursuant to an effective registration statement under
the Securities Act and under applicable state securities or blue sky laws, the
Company may require, as a condition of allowing such transfer (i) that the
Holder or transferee of this Warrant, as the case may be, furnish to the Company
a written opinion of counsel (which opinion shall be in form, substance and
scope customary for opinions of counsel in comparable transactions) to the
effect that such transfer may be made without registration under the Securities
Act and under applicable state securities or blue sky laws, (ii) that the holder
or transferee execute and deliver to the Company an investment letter in form
and substance acceptable to the Company and (iii) that the transferee be an
"accredited investor" as defined in Rule 501(a)(1), (a)(2), (a)(3), (a)(7), or
(a)(8) promulgated under the Securities Act or a qualified institutional buyer
as defined in Rule 144A(a) under the Securities Act.

Section 5. Miscellaneous.

      a) Title to Warrant. Prior to the Termination Date and subject to
compliance with applicable laws and Section 4 of this Warrant, this Warrant and
all rights hereunder are transferable, in whole or in part, at the office or
agency of the Company by the Holder in person or by duly authorized attorney,
upon surrender of this Warrant together with the Assignment Form annexed hereto
properly endorsed. The transferee shall sign an investment letter in form and
substance reasonably satisfactory to the Company.

      b) No Rights as Shareholder Until Exercise. This Warrant does not entitle
the Holder to any voting rights or other rights as a shareholder of the Company
prior to the exercise hereof. Upon the surrender of this Warrant and the payment
of the aggregate Exercise Price (or by means of a cashless exercise), the
Warrant Shares so purchased shall be and be deemed to be issued to such Holder
as the record owner of such shares as of the close of business on the later of
the date of such surrender or payment.

      c) Loss, Theft, Destruction or Mutilation of Warrant. The Company
covenants that upon receipt by the Company of evidence reasonably satisfactory
to it of the loss, theft, destruction or mutilation of this Warrant or any stock
certificate relating to the Warrant Shares, and in case of loss, theft or
destruction, of indemnity or security reasonably satisfactory to it (which, in
the case of the Warrant, shall not include the posting of any bond), and upon
surrender and cancellation of such Warrant or stock certificate, if mutilated,
the Company will make and deliver a new Warrant or stock certificate of like
tenor and dated as of such cancellation, in lieu of such Warrant or stock
certificate.

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      d) Saturdays, Sundays, Holidays, etc. If the last or appointed day for the
taking of any action or the expiration of any right required or granted herein
shall be a Saturday, Sunday or a legal holiday, then such action may be taken or
such right may be exercised on the next succeeding day not a Saturday, Sunday or
legal holiday.

      e) Authorized Shares.

            The Company covenants that during the period the Warrant is
      outstanding, it will reserve from its authorized and unissued Common Stock
      a sufficient number of shares to provide for the issuance of the Warrant
      Shares upon the exercise of any purchase rights under this Warrant. The
      Company further covenants that its issuance of this Warrant shall
      constitute full authority to its officers who are charged with the duty of
      executing stock certificates to execute and issue the necessary
      certificates for the Warrant Shares upon the exercise of the purchase
      rights under this Warrant. The Company will take all such commercially
      reasonable action as may be necessary to assure that such Warrant Shares
      may be issued as provided herein without violation of any applicable law
      or regulation, or of any requirements of the Trading Market upon which the
      Common Stock may be listed.

            Except and to the extent as waived or consented to by the Holder,
      the Company shall not by any action, including, without limitation,
      amending its certificate of incorporation or through any reorganization,
      transfer of assets, consolidation, merger, dissolution, issue or sale of
      securities or any other voluntary action, avoid or seek to avoid the
      observance or performance of any of the terms of this Warrant, but will at
      all times in good faith assist in the carrying out of all such terms and
      in the taking of all such actions as may be necessary or appropriate to
      protect the rights of Holder as set forth in this Warrant against
      impairment. Without limiting the generality of the foregoing, the Company
      will (a) not increase the par value of any Warrant Shares above the amount
      payable therefor upon such exercise immediately prior to such increase in
      par value, (b) take all such action as may be necessary or appropriate in
      order that the Company may validly and legally issue fully paid and
      nonassessable Warrant Shares upon the exercise of this Warrant, and (c)
      use commercially reasonable efforts to obtain all such authorizations,
      exemptions or consents from any public regulatory body having jurisdiction
      thereof as may be necessary to enable the Company to perform its
      obligations under this Warrant.

            Before taking any action which would result in an adjustment in the
      number of Warrant Shares for which this Warrant is exercisable or in the
      Exercise Price, the Company shall obtain all such authorizations or
      exemptions thereof, or consents thereto, as may be necessary from any
      public regulatory body or bodies having jurisdiction thereof.

      f) Jurisdiction. All questions concerning the construction, validity,
enforcement and interpretation of this Warrant shall be determined in accordance
with the provisions of the Purchase Agreement.

                                       11
<PAGE>

      g) Restrictions. The Holder acknowledges that the Warrant Shares acquired
upon the exercise of this Warrant, if not registered, will have restrictions
upon resale imposed by state and federal securities laws.

      h) Nonwaiver and Expenses. No course of dealing or any delay or failure to
exercise any right hereunder on the part of Holder shall operate as a waiver of
such right or otherwise prejudice Holder's rights, powers or remedies,
notwithstanding the fact that all rights hereunder terminate on the Termination
Date. If the Company willfully and knowingly fails to comply with any provision
of this Warrant, which results in any material damages to the Holder, the
Company shall pay to Holder such amounts as shall be sufficient to cover any
costs and expenses including, but not limited to, reasonable attorneys' fees,
including those of appellate proceedings, incurred by Holder in collecting any
amounts due pursuant hereto or in otherwise enforcing any of its rights, powers
or remedies hereunder.

      i) Notices. Any notice, request or other document required or permitted to
be given or delivered to the Holder by the Company shall be delivered in
accordance with the notice provisions of the Purchase Agreement.

      j) Limitation of Liability. No provision hereof, in the absence of any
affirmative action by Holder to exercise this Warrant or purchase Warrant
Shares, and no enumeration herein of the rights or privileges of Holder, shall
give rise to any liability of Holder for the purchase price of any Common Stock
or as a stockholder of the Company, whether such liability is asserted by the
Company or by creditors of the Company.

      k) Remedies. Holder, in addition to being entitled to exercise all rights
granted by law, including recovery of damages, will be entitled to specific
performance of its rights under this Warrant. The Company agrees that monetary
damages would not be adequate compensation for any loss incurred by reason of a
breach by it of the provisions of this Warrant and hereby agrees to waive the
defense in any action for specific performance that a remedy at law would be
adequate.

      l) Successors and Assigns. Subject to applicable securities laws, this
Warrant and the rights and obligations evidenced hereby shall inure to the
benefit of and be binding upon the successors of the Company and the successors
and permitted assigns of Holder. The provisions of this Warrant are intended to
be for the benefit of all Holders from time to time of this Warrant and shall be
enforceable by any such Holder or holder of Warrant Shares.

      m) Amendment. This Warrant may be modified or amended or the provisions
hereof waived with the written consent of the Company and the Holder.

      n) Severability. Wherever possible, each provision of this Warrant shall
be interpreted in such manner as to be effective and valid under applicable law,
but if any provision of this Warrant shall be prohibited by or invalid under
applicable law, such provision shall be ineffective to the extent of such
prohibition or invalidity, without invalidating the remainder of such provisions
or the remaining provisions of this Warrant.

      o) Headings. The headings used in this Warrant are for the convenience of
reference only and shall not, for any purpose, be deemed a part of this Warrant.

                              ********************

                                       12
<PAGE>

                  IN WITNESS WHEREOF, the Company has caused this Warrant to be
executed by its officer thereunto duly authorized.

Dated:  March __, 2006

                                    CYBRA CORPORATION

                                    By:_________________________________________
                                       Name:
                                       Title:

                                       13
<PAGE>

                               NOTICE OF EXERCISE

TO: CYBRA CORPORATION

      (1)______The undersigned hereby elects to purchase ________ Warrant Shares
of the Company pursuant to the terms of the attached Warrant (only if exercised
in full), and tenders herewith payment of the exercise price in full, together
with all applicable transfer taxes, if any.

      (2)______Please issue a certificate or certificates representing said
Warrant Shares in the name of the undersigned or in such other name as is
specified below:

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

The Warrant Shares shall be delivered to the following:

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

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

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

      (3) Accredited Investor. The undersigned is an "accredited investor" as
defined in Regulation D promulgated under the Securities Act of 1933, as
amended.

                             [SIGNATURE OF HOLDER]

Name of Investing Entity: ______________________________________________________
Signature of Authorized Signatory of Investing Entity: _________________________
Name of Authorized Signatory: __________________________________________________
Title of Authorized Signatory: _________________________________________________
Date: __________________________________________________________________________

<PAGE>

                                 ASSIGNMENT FORM

                    (To assign the foregoing warrant, execute
                   this form and supply required information.
                 Do not use this form to exercise the warrant.)

      FOR VALUE RECEIVED, the foregoing Warrant and all rights evidenced thereby
are hereby assigned to

_______________________________________________ whose address is

________________________________________________________________.

________________________________________________________________

                                                 Dated:  ______________, _______

                           Holder's Signature: _________________________________

                           Holder's Address:____________________________________

                                            ____________________________________

Signature Guaranteed:  ___________________________________________

NOTE: The signature to this Assignment Form must correspond with the name as it
appears on the face of the Warrant, without alteration or enlargement or any
change whatsoever, and must be guaranteed by a bank or trust company. Officers
of corporations and those acting in a fiduciary or other representative capacity
should file proper evidence of authority to assign the foregoing Warrant.EXHIBIT A

NEITHER THIS SECURITY NOR THE SECURITIES INTO WHICH THIS SECURITY IS CONVERTIBLE
HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE
SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM
REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES
ACT"), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN
EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR PURSUANT TO AN
AVAILABLE EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION
REQUIREMENTS OF THE SECURITIES ACT AND IN ACCORDANCE WITH APPLICABLE STATE
SECURITIES LAWS AS EVIDENCED BY A LEGAL OPINION OF COUNSEL TO THE TRANSFEROR TO
SUCH EFFECT, THE SUBSTANCE OF WHICH SHALL BE REASONABLY ACCEPTABLE TO THE
COMPANY. THIS SECURITY AND THE SECURITIES ISSUABLE UPON CONVERSION OF THIS
SECURITY MAY BE PLEDGED IN CONNECTION WITH A BONA FIDE MARGIN ACCOUNT OR OTHER
LOAN SECURED BY SUCH SECURITIES.

Original Issue Date: March __, 2006

                                                                    $___________

                            8% CONVERTIBLE DEBENTURE
                              DUE MARCH ____, 2009

      THIS 8% CONVERTIBLE DEBENTURE is one of a series of duly authorized and
issued 8% Convertible Debentures of CYBRA Corporation, a New York corporation,
having a principal place of business at One Executive Boulevard, Yonkers, NY
10701-6804 (the "Company"), designated as its 8% Convertible Debenture, due
March ___, 2009 (the "Debenture(s)").

      FOR VALUE RECEIVED, the Company promises to pay to ____________________,
or its registered assigns (the "Holder"), or shall have paid pursuant to the
terms hereunder, the principal sum of $__________ by March ___, 2009, or such
earlier date as the Debentures are required or permitted to be repaid as
provided hereunder (the "Maturity Date"), and to pay interest to the Holder on
the aggregate unconverted and then outstanding principal amount of this
Debenture in accordance with the provisions hereof. All payments shall be made
by certified check to the address of the Holder as provided in Section 9(a) or
by wire transfer of immediately available funds pursuant to instructions as may
be provided from time to time by Holder. This Debenture is subject to the
following additional provisions:

      Section 1. Definitions. For the purposes hereof, in addition to the terms
defined elsewhere in this Debenture: (a) capitalized terms not otherwise defined
herein have the meanings given to such terms in the Purchase Agreement, and (b)
the following terms shall have the following meanings: "Actual Effective Date"
shall have the meaning set forth in Section 6(c).

                                       1
<PAGE>

            "Alternate Consideration" shall have the meaning set forth in
      Section 5(d).

            "Base Conversion Price" shall have the meaning set forth in Section
      5(b).

            "Buy-In" shall have the meaning set forth in Section 4(d)(v).

            "Change of Control Transaction" means the occurrence after the date
      hereof of any of (i) an acquisition after the date hereof by an individual
      or legal entity or "group" (as described in Rule 13d-5(b)(1) promulgated
      under the Exchange Act) of effective control (whether through legal or
      beneficial ownership of capital stock of the Company, by contract or
      otherwise) of in excess of 45% of the voting securities of the Company, or
      (ii) the Company merges into or consolidates with any other Person, or any
      Person merges into or consolidates with the Company and, after giving
      effect to such transaction, the stockholders of the Company immediately
      prior to such transaction own less than 55% of the aggregate voting power
      of the Company or the successor entity of such transaction, or (iii) the
      Company sells or transfers its assets, as an entirety or substantially as
      an entirety, to another Person and the stockholders of the Company
      immediately prior to such transaction own less than 55% of the aggregate
      voting power of the acquiring entity immediately after the transaction,
      (iv) a replacement at one time or within a three year period of more than
      one-half of the members of the Company's board of directors which is not
      approved by a majority of those individuals who are members of the board
      of directors on the date hereof (or by those individuals who are serving
      as members of the board of directors on any date whose nomination to the
      board of directors was approved by a majority of the members of the board
      of directors who are members on the date hereof), or (v) the execution by
      the Company of an agreement to which the Company is a party or by which it
      is bound, providing for any of the events set forth above in (i) or (iv).

            "Conversion Date" shall have the meaning set forth in Section 4(a).

            "Conversion Price" shall have the meaning set forth in Section 4(b).

            "Conversion Shares" means the shares of Common Stock issuable upon
      conversion of Debentures.

            "Debenture Register" shall have the meaning set forth in Section
      2(c).

            "Dilutive Issuance" shall have the meaning set forth in Section
      5(b).

            "Dilutive Issuance Notice" shall have the meaning set forth in
      Section 5(b).

            "Equity Conditions" shall mean, during the period in question, (i)
      the Company shall have duly honored all conversions and redemptions
      scheduled to occur or occurring by virtue of one or more Notice of
      Conversions of the Holder, if any, (ii) all liquidated damages and other
      amounts owing to the Holder in respect of the Debentures shall have been
      paid; (iii) there is a sufficient number of authorized but unissued and

                                       2
<PAGE>

      otherwise unreserved shares of Common Stock for the issuance of all of the
      shares issuable pursuant to the Transaction Documents, (iv) there is then
      existing no Event of Default or event which, with the passage of time or
      the giving of notice, would constitute an Event of Default, (v) if after
      the date hereof the Company becomes subject to the reporting requirements
      of the Exchange Act, the issuance of the shares in question (or, in the
      case of a redemption, the shares issuable upon conversion in full of the
      redemption amount) to the Holder would not violate the limitations set
      forth in Section 4(c) and (vi) no public announcement of a pending or
      proposed Fundamental Transaction, Change of Control Transaction or
      acquisition transaction has occurred, which transaction has not been
      consummated, excluding transaction which have been publicly announced and
      subsequently abandoned.

            "Event of Default" shall have the meaning set forth in Section 8.

            "Fundamental Transaction" shall have the meaning set forth in
      Section 5(d).

            "Interest Payment Date" shall have the meaning set forth in Section
      2(a).

            "Late Fees" shall have the meaning set forth in Section 2(c).

            "Lookback Period" shall have the meaning set forth in Section 6(c).

            "Mandatory Conversion" shall have the meaning set forth in Section
      6(c).

            "Mandatory Conversion Date" shall have the meaning set forth in
      Section 6(c).

            "Mandatory Prepayment Amount" for any Debentures shall equal the sum
      of (i) the greater of: (A) 120% of the principal amount of Debentures to
      be prepaid, plus all accrued and unpaid interest thereon, or (B) the
      principal amount of Debentures to be prepaid, plus all other accrued and
      unpaid interest hereon, divided by the Conversion Price on (x) the date
      the Mandatory Prepayment Amount is demanded or otherwise due or (y) the
      date the Mandatory Prepayment Amount is paid in full, whichever is less,
      multiplied by the VWAP on (x) the date the Mandatory Prepayment Amount is
      demanded or otherwise due or (y) the date the Mandatory Prepayment Amount
      is paid in full, whichever is greater, and (ii) all other amounts, costs,
      expenses and liquidated damages due in respect of such Debentures.

            "New York Courts" shall have the meaning set forth in Section 9(d).

            "Notice of Conversion" shall have the meaning set forth in Section
      4(a).

            "Notice of Mandatory Conversion" shall have the meaning set forth in
      Section 6(c).

            "Optional Redemption" shall have the meaning set forth in Section
      6(a).

                                       3
<PAGE>

            "Optional Redemption Amount" shall mean the sum of (i) 120% of the
      principal amount of the Debenture then outstanding, (ii) accrued but
      unpaid interest and (iii) all liquidated damages and other amounts due in
      respect of the Debenture.

            "Optional Redemption Notice" shall have the meaning set forth in
      Section 6(a).

            "Optional Redemption Notice Date" shall have the meaning set forth
      in Section 6(a). "Original Issue Date" shall mean the date of the first
      issuance of the Debentures regardless of the number of transfers of any
      Debenture and regardless of the number of instruments which may be issued
      to evidence such Debenture.

            "Permitted Debt" means trade payables and indebtedness consisting of
      capitalized lease obligations and purchase money indebtedness incurred in
      connection with acquisition of capital assets and obligations under
      sale-leaseback arrangements with respect to newly acquired or leased
      assets.

            "Permitted Lien" mean (a) Liens with respect to the payment of taxes
      or governmental charges in all cases which are not yet due or which are
      subject to a good faith contest; (b) any Liens incurred in connection with
      Permitted Debt provided that such liens are not secured by assets of the
      Company or its Subsidiaries other than the assets so acquired or leased;
      and (c) statutory Liens of landlords or equipment lessors against any
      property of the Company or its Subsidiaries existing as of the date of the
      Purchase Agreement in favor of suppliers, mechanics, carriers,
      materialmen, warehousemen or workmen.

            "Purchase Agreement" means the Securities Purchase Agreement, dated
      as of March __, 2006, to which the Company and the original Holder are
      parties, as amended, modified or supplemented from time to time in
      accordance with its terms.

      Section 2. Interest.

            a) Payment of Interest. The Company shall pay interest to the Holder
      on the aggregate unconverted and then outstanding principal amount of this
      Debenture at the rate of 8% per annum, payable semi-annually on June 30
      and December 31, beginning on the second such date after the Original
      Issue Date, on each Conversion Date (as to that principal amount then
      being converted), on each Optional Redemption Date (as to that principal
      amount being redeemed), on each Mandatory Conversion Date (as to that
      principal amount then being converted) and on the Maturity Date (except
      that, if any such date is not a Business Day, then such payment shall be
      due on the next succeeding Business Day) (each such date, an "Interest
      Payment Date"), in cash and/or Common Stock as described below. The
      Company may elect to pay interest with shares of Common Stock valued at
      the Conversion Price in effect on the third Business Day preceding the
      relevant Interest Payment Date. The Company may elect to pay such interest
      with shares of Common Stock only if (i) notice of such election is giving
      to the Holder not less than ten Business Days prior to the relevant
      Interest Payment Date, (ii) such payment is made ratably among all Holders
      due interest on the Interest Payment Date, (iii) all of the Equity
      Conditions have been satisfied, and (iv) such shares of Common Stock are
      registered for public resale in an effective Registration Statement as of
      thirty days prior to and through the relevant Interest Payment Date.

                                       4
<PAGE>

            b) Interest Calculations. Interest shall be calculated on the basis
      of a 360-day year and shall accrue daily commencing on the Original Issue
      Date until payment in full of the principal sum, together with all accrued
      and unpaid interest and other amounts which may become due hereunder, has
      been made. Interest shall cease to accrue with respect to any principal
      amount converted, provided that the Company in fact delivers the
      Conversion Shares within the time period required by Section 4(d)(ii).
      Interest hereunder will be paid to the Person in whose name this Debenture
      is registered on the records of the Company regarding registration and
      transfers of Debentures (the "Debenture Register").

            c) Late Fee. All overdue accrued and unpaid interest to be paid
      hereunder shall entail a late fee at the rate of 15% per annum (or such
      lower maximum amount of interest permitted to be charged under applicable
      law) ("Late Fees") which will accrue daily, from the date such interest is
      due hereunder through and including the date of payment.

            d) Prepayment. Except as otherwise set forth in this Debenture, the
      Company may not prepay any portion of the principal amount of this
      Debenture without the prior written consent of the Holder.

         Section 3.         Registration of Transfers and Exchanges.

a)       Different Denominations. This Debenture is exchangeable for an equal
         aggregate principal amount of Debentures of different authorized
         denominations, as requested by the Holder surrendering the same. No
         service charge will be made for such registration of transfer or
         exchange.

b)       Investment Representations. This Debenture has been issued subject to
         certain investment representations of the original Holder set forth in
         the Purchase Agreement and may be transferred or exchanged only in
         compliance with the Purchase Agreement and applicable federal and state
         securities laws and regulations.

c)       Reliance on Debenture Register. Prior to due presentment to the Company
         for transfer of this Debenture, the Company and any agent of the
         Company may treat the Person in whose name this Debenture is duly
         registered on the Debenture Register as the owner hereof for the
         purpose of receiving payment as herein provided and for all other
         purposes, whether or not this Debenture is overdue, and neither the
         Company nor any such agent shall be affected by notice to the contrary.

      Section 4. Conversion.

                                       5
<PAGE>

            a) Voluntary Conversion. At any time after the Original Issue Date
      until this Debenture is no longer outstanding, this Debenture shall be
      convertible into shares of Common Stock at the option of the Holder, in
      whole or in part at any time and from time to time (subject to the
      limitations on conversion set forth in Section 4(c) hereof). The Holder
      shall effect conversions by delivering to the Company the form of Notice
      of Conversion attached hereto as Annex A (a "Notice of Conversion"),
      specifying therein the principal amount of Debentures to be converted and
      the date on which such conversion is to be effected (a "Conversion Date").
      If no Conversion Date is specified in a Notice of Conversion, the
      Conversion Date shall be the date that such Notice of Conversion is
      provided hereunder. To effect conversions hereunder, the Holder shall not
      be required to physically surrender Debentures to the Company unless the
      entire principal amount of this Debenture plus all accrued and unpaid
      interest thereon has been so converted. Conversions hereunder shall have
      the effect of lowering the outstanding principal amount of this Debenture
      in an amount equal to the applicable conversion. The Holder and the
      Company shall maintain records showing the principal amount converted and
      the date of such conversions. The Company shall deliver any objection to
      any Notice of Conversion within 2 Business Days of receipt of such notice.
      In the event of any dispute or discrepancy, the records of the Holder
      shall be controlling and determinative in the absence of manifest error.
      The Holder and any assignee, by acceptance of this Debenture, acknowledge
      and agree that, by reason of the provisions of this paragraph, following
      conversion of a portion of this Debenture, the unpaid and unconverted
      principal amount of this Debenture may be less than the amount stated on
      the face hereof.

            b) Conversion Price. The conversion price (the "Conversion Price")
      in effect on the Original Issue Date is $0.50. Within 2 Business Days of
      the request of the Holder, the Company shall provide the Holder an
      Officer's Certificate stating the number of issued and outstanding shares
      of Fully-Diluted Outstanding Capital Stock.

            c) Conversion Limitations; Holder's Restriction on Conversion. At
      any time after the Common Stock is registered under Section 12 of the
      Exchange Act, the Company shall not effect any conversion of this
      Debenture, and the Holder shall not have the right to convert any portion
      of this Debenture, pursuant to Section 4(a) or otherwise, to the extent
      that after giving effect to such conversion, the Holder (together with the
      Holder's affiliates), as set forth on the applicable Notice of Conversion,
      would beneficially own in excess of 4.99% of the number of shares of the
      Common Stock outstanding immediately after giving effect to such
      conversion. For purposes of the foregoing sentence, the number of shares
      of Common Stock beneficially owned by the Holder and its affiliates shall
      include the number of shares of Common Stock issuable upon conversion of
      this Debenture with respect to which the determination of such sentence is
      being made, but shall exclude the number of shares of Common Stock which
      would be issuable upon (A) conversion of the remaining, nonconverted
      portion of this Debenture beneficially owned by the Holder or any of its
      affiliates and (B) exercise or conversion of the unexercised or

                                       6
<PAGE>

      nonconverted portion of any other securities of the Company (including,
      without limitation, any other Debentures or the Warrants) subject to a
      limitation on conversion or exercise analogous to the limitation contained
      herein beneficially owned by the Holder or any of its affiliates. Except
      as set forth in the preceding sentence, for purposes of this Section 4(c),
      beneficial ownership shall be calculated in accordance with Section 13(d)
      of the Exchange Act. To the extent that the limitation contained in this
      section applies, the determination of whether this Debenture is
      convertible (in relation to other securities owned by the Holder) and of
      which a portion of this Debenture is convertible shall be in the sole
      discretion of such Holder. To ensure compliance with this restriction, the
      Holder will be deemed to represent to the Company each time it delivers a
      Notice of Conversion that such Notice of Conversion has not violated the
      restrictions set forth in this paragraph and the Company shall have no
      obligation to verify or confirm the accuracy of such determination. For
      purposes of this Section 4(c), in determining the number of outstanding
      shares of Common Stock, the Holder may rely on the number of outstanding
      shares of Common Stock as reflected in (x) Schedule 3.1(g) to the Purchase
      Agreement, (y) a more recent public announcement by the Company or (z) any
      other notice by the Company or the Company's Transfer Agent setting forth
      the number of shares of Common Stock outstanding. Upon the written or oral
      request of the Holder, the Company shall within two Business Days confirm
      orally and in writing to the Holder the number of shares of Common Stock
      then outstanding. In any case, the number of outstanding shares of Common
      Stock shall be determined after giving effect to the conversion or
      exercise of securities of the Company, including this Debenture, by the
      Holder or its affiliates since the date as of which such number of
      outstanding shares of Common Stock was reported. The provisions of this
      Section 4(c) may be amended by the Holder, at the election of the Holder,
      upon not less than 61 days' prior notice to the Company, and the
      provisions of this Section 4(c) shall continue to apply until such 61st
      day (or such later date, as determined by the Holder, as may be specified
      in such notice of waiver). No amendment by the Holder may have the effect
      of increasing the 4.99% figure stated above to greater than 9.99%.

            d) Mechanics of Conversion

                  i. Conversion Shares Issuable Upon Conversion of Principal
            Amount. The number of shares of Common Stock issuable upon a
            conversion hereunder shall be determined by the quotient obtained by
            dividing (x) the outstanding principal amount of this Debenture to
            be converted by (y) the Conversion Price. i.

                  ii. Delivery of Certificate Upon Conversion. Not later than
            four Business Days after any Conversion Date, the Company will
            deliver or cause to be delivered to the Holder (A) a certificate or
            certificates representing the Conversion Shares which shall be free
            of restrictive legends and trading restrictions (other than those
            required by the Purchase Agreement) representing the number of
            shares of Common Stock being acquired upon the conversion of
            Debentures and (B) a bank check in the amount of accrued and unpaid
            interest. The Company shall, if available and if allowed under
            applicable securities laws, use its best efforts to deliver any
            certificate or certificates required to be delivered by the Company
            under this Section electronically through the Depository Trust
            Corporation or another established clearing corporation performing
            similar functions.

                                       7
<PAGE>

                  iii. Failure to Deliver Certificates. If in the case of any
            Notice of Conversion such certificate or certificates are not
            delivered to or as directed by the applicable Holder by the third
            Business Day after a Conversion Date, the Holder shall be entitled
            by written notice to the Company at any time on or before its
            receipt of such certificate or certificates thereafter, to rescind
            such conversion, in which event the Company shall immediately return
            the certificates representing the principal amount of Debentures
            tendered for conversion.

                  iv. Obligation Absolute; Partial Liquidated Damages. If the
            Company fails for any reason to deliver to the Holder such
            certificate or certificates pursuant to Section 4(d)(ii) by the
            fifth Business Day after the Conversion Date, the Company shall pay
            to such Holder, in cash, as liquidated damages and not as a penalty,
            for each $1000 of principal amount being converted, $10 per Business
            Day (increasing to $20 per Business Day after 5 Business Days after
            such damages begin to accrue) for each Business Day after such fifth
            Business Day until such certificates are delivered. The Company's
            obligations to issue and deliver the Conversion Shares upon
            conversion of this Debenture in accordance with the terms hereof are
            absolute and unconditional, irrespective of any action or inaction
            by the Holder to enforce the same, any waiver or consent with
            respect to any provision hereof, the recovery of any judgment
            against any Person or any action to enforce the same, or any setoff,
            counterclaim, recoupment, limitation or termination, or any breach
            or alleged breach by the Holder or any other Person of any
            obligation to the Company or any violation or alleged violation of
            law by the Holder or any other person, and irrespective of any other
            circumstance which might otherwise limit such obligation of the
            Company to the Holder in connection with the issuance of such
            Conversion Shares; provided, however, such delivery shall not
            operate as a waiver by the Company of any such action the Company
            may have against the Holder. In the event a Holder of this Debenture
            shall elect to convert any or all of the outstanding principal
            amount hereof, the Company may not refuse conversion based on any
            claim that the Holder or any one associated or affiliated with the
            Holder has been engaged in any violation of law, agreement or for
            any other reason, unless, an injunction from a court, on notice,
            restraining and or enjoining conversion of all or part of this
            Debenture shall have been sought and obtained and the Company posts
            a surety bond for the benefit of the Holder in the amount of 150% of
            the principal amount of this Debenture outstanding, which is subject
            to the injunction, which bond shall remain in effect until the
            completion of arbitration/litigation of the dispute and the proceeds
            of which shall be payable to such Holder to the extent it obtains
            judgment. In the absence of an injunction precluding the same, the
            Company shall issue Conversion Shares or, if applicable, cash, upon
            a properly noticed conversion. Nothing herein shall limit a Holder's
            right to pursue actual damages or declare an Event of Default
            pursuant to Section 8 herein for the Company's failure to deliver
            Conversion Shares within the period specified herein and such Holder
            shall have the right to pursue all remedies available to it at law
            or in equity including, without limitation, a decree of specific
            performance and/or injunctive relief. The exercise of any such
            rights shall not prohibit the Holder from seeking to enforce damages
            pursuant to any other Section hereof or under applicable law.

                                       8
<PAGE>

                  v. Compensation for Buy-In on Failure to Timely Deliver
            Certificates Upon Conversion. In addition to any other rights
            available to the Holder and only if after the Original Issue Date
            the Company becomes subject to the reporting requirements of the
            Exchange Act, if the Company fails for any reason to deliver to the
            Holder such certificate or certificates pursuant to Section 4(d)(ii)
            by the third Business Day after the Conversion Date, and if after
            such third Business Day the Holder is required by its brokerage firm
            to purchase (in an open market transaction or otherwise) Common
            Stock to deliver in satisfaction of a sale by such Holder of the
            Conversion Shares which the Holder anticipated receiving upon such
            conversion (a "Buy-In"), then the Company shall (A) pay in cash to
            the Holder (in addition to any remedies available to or elected by
            the Holder) the amount by which (x) the Holder's total purchase
            price (including brokerage commissions, if any) for the Common Stock
            so purchased exceeds (y) the product of (1) the aggregate number of
            shares of Common Stock that such Holder anticipated receiving from
            the conversion at issue multiplied by (2) the actual sale price of
            the Common Stock at the time of the sale (including brokerage
            commissions, if any) giving rise to such purchase obligation and (B)
            at the option of the Holder, either reissue Debentures in principal
            amount equal to the principal amount of the attempted conversion or
            deliver to the Holder the number of shares of Common Stock that
            would have been issued had the Company timely complied with its
            delivery requirements under Section 4(d)(ii). For example, if the
            Holder purchases Common Stock having a total purchase price of
            $11,000 to cover a Buy-In with respect to an attempted conversion of
            Debentures with respect to which the actual sale price of the
            Conversion Shares at the time of the sale (including brokerage
            commissions, if any) giving rise to such purchase obligation was a
            total of $10,000 under clause (A) of the immediately preceding
            sentence, the Company shall be required to pay the Holder $1,000.
            The Holder shall provide the Company written notice indicating the
            amounts payable to the Holder in respect of the Buy-In.
            Notwithstanding anything contained herein to the contrary, if a
            Holder requires the Company to make payment in respect of a Buy-In
            for the failure to timely deliver certificates hereunder and the
            Company timely pays in full such payment, the Company shall not be
            required to pay such Holder liquidated damages under Section
            4(d)(iv) in respect of the certificates resulting in such Buy-In.

                                       9
<PAGE>

                  vi. Reservation of Shares Issuable Upon Conversion. The
            Company covenants that it will at all times reserve and keep
            available out of its authorized and unissued shares of Common Stock
            solely for the purpose of issuance upon conversion of the
            Debentures, as herein provided, free from preemptive rights or any
            other actual contingent purchase rights of persons other than the
            Holder (and the other Holders of the Debentures), not less than such
            number of shares of the Common Stock as shall (subject to any
            additional requirements of the Company as to reservation of such
            shares set forth in the Purchase Agreement) be issuable (taking into
            account the adjustments and restrictions of Section 5) upon the
            conversion of the outstanding principal amount of the Debentures.
            The Company covenants that all shares of Common Stock that shall be
            so issuable shall, upon issue, be duly and validly authorized,
            issued and fully paid, nonassessable and, if the Registration
            Statement is then effective under the Securities Act, registered for
            public sale in accordance with such Registration Statement.

                  vii. Fractional Shares. Upon a conversion hereunder the
            Company shall not be required to issue stock certificates
            representing fractions of shares of the Common Stock, but may if
            otherwise permitted, make a cash payment in respect of any final
            fraction of a share based on the VWAP at such time. If the Company
            elects not, or is unable, to make such a cash payment, the Holder
            shall be entitled to receive, in lieu of the final fraction of a
            share, one whole share of Common Stock.

                  viii. Transfer Taxes. The issuance of certificates for shares
            of the Common Stock on conversion of this Debenture shall be made
            without charge to the Holder hereof for any documentary stamp or
            similar taxes that may be payable in respect of the issue or
            delivery of such certificate, provided that the Company shall not be
            required to pay any tax that may be payable in respect of any
            transfer involved in the issuance and delivery of any such
            certificate upon conversion in a name other than that of the Holder
            of such Debentures so converted and the Company shall not be
            required to issue or deliver such certificates unless or until the
            person or persons requesting the issuance thereof shall have paid to
            the Company the amount of such tax or shall have established to the
            satisfaction of the Company that such tax has been paid.

      Section 5. Certain Adjustments.

            a) Stock Dividends And Stock Splits. If the Company, at any time
      while this Debenture is outstanding: (A) pays a stock dividend or
      otherwise makes a distribution or distributions on shares of its Common
      Stock or any other equity or equity equivalent securities payable in
      shares of Common Stock (which, for avoidance of doubt, shall not include
      any shares of Common Stock issued by the Company pursuant to this
      Debenture, including as interest thereon), (B) subdivides outstanding
      shares of Common Stock into a larger number of shares, (C) combines
      (including by way of reverse stock split) outstanding shares of Common
      Stock into a smaller number of shares, or (D) issues by reclassification
      of shares of the Common Stock any shares of capital stock of the Company,
      then the Conversion Price shall be multiplied by a fraction of which the
      numerator shall be the number of shares of Common Stock (excluding
      treasury shares, if any) outstanding immediately before such event and of
      which the denominator shall be the number of shares of Common Stock
      outstanding immediately after such event. Any adjustment made pursuant to
      this Section shall become effective immediately after the record date for
      the determination of stockholders entitled to receive such dividend or
      distribution and shall become effective immediately after the effective
      date in the case of a subdivision, combination or re-classification.

                                       10
<PAGE>

            b) Subsequent Equity Sales. Except for an Exempt Issuance, if the
      Company or any Subsidiary thereof, as applicable, at any time while this
      Debenture is outstanding, shall sell, grant any option to purchase or
      offer, sell or grant any right to reprice its securities, or otherwise
      dispose of or issue any Common Stock or Common Stock Equivalents entitling
      any Person to acquire shares of Common Stock, at an effective price per
      share less than the then Conversion Price (such lower price, the "BASE
      CONVERSION PRICE" and such issuances collectively, a "DILUTIVE ISSUANCE"),
      as adjusted hereunder (if the holder of the Common Stock or Common Stock
      Equivalents so issued shall at any time, whether by operation of purchase
      price adjustments, reset provisions, floating conversion, exercise or
      exchange prices or otherwise, or due to warrants, options or rights per
      share which is issued in connection with such issuance, be entitled to
      receive shares of Common Stock at an effective price per share which is
      less than the Conversion Price, such issuance shall be deemed to have
      occurred for less than the Conversion Price on such date of the Dilutive
      Issuance), then the Conversion Price shall be reduced to equal the Base
      Conversion Price. Such adjustment shall be made whenever such Common Stock
      or Common Stock Equivalents are issued. Notwithstanding the foregoing, no
      adjustment will be made under this Section 5(b) in respect of an Exempt
      Issuance. The Company shall notify the Holder in writing, no later than
      the Business Day following the issuance of any Common Stock or Common
      Stock Equivalents subject to this section, indicating therein the
      applicable issuance price, or of applicable reset price, exchange price,
      conversion price and other pricing terms (such notice the "DILUTIVE
      ISSUANCE NOTICE"). For purposes of clarification, whether or not the
      Company provides a Dilutive Issuance Notice pursuant to this Section 5(b),
      upon the occurrence of any Dilutive Issuance, after the date of such
      Dilutive Issuance the Holder is entitled to receive a number of Conversion
      Shares based upon the Base Conversion Price regardless of whether the
      Holder accurately refers to the Base Conversion Price in the Notice of
      Conversion.

            c) Pro Rata Distributions. If the Company, at any time while this
      Debenture is outstanding, shall distribute to all holders of Common Stock
      (and not to the holders of the Debenture) evidences of its indebtedness or
      assets (including cash and cash dividends) or rights or warrants to
      subscribe for or purchase any security, then in each such case the
      Conversion Price shall be adjusted by multiplying such Conversion Price in
      effect immediately prior to the record date fixed for determination of
      stockholders entitled to receive such distribution by a fraction of which
      the denominator shall be the VWAP determined as of the record date
      mentioned above, and of which the numerator shall be such VWAP on such
      record date less the then fair market value at such record date of the
      portion of such assets or evidence of indebtedness so distributed
      applicable to one outstanding share of the Common Stock as determined by
      the Board of Directors in good faith. In either case the adjustments shall
      be described in a statement provided to the Holder of the portion of
      assets or evidences of indebtedness so distributed or such subscription
      rights applicable to one share of Common Stock. Such adjustment shall be
      made whenever any such distribution is made and shall become effective
      immediately after the record date mentioned above.

                                       11
<PAGE>

            d) Fundamental Transaction. If, at any time while this Debenture is
      outstanding, (A) the Company effects any merger or consolidation of the
      Company with or into another Person, (B) the Company effects any sale of
      all or substantially all of its assets in one or a series of related
      transactions, (C) any tender offer or exchange offer (whether by the
      Company or another Person) is completed pursuant to which holders of
      Common Stock are permitted to tender or exchange their shares for other
      securities, cash or property, or (D) the Company effects any
      reclassification of the Common Stock or any compulsory share exchange
      pursuant to which the Common Stock is effectively converted into or
      exchanged for other securities, cash or property (in any such case, a
      "FUNDAMENTAL TRANSACTION"), then upon any subsequent conversion of this
      Debenture, the Holder shall have the right to receive, for each Conversion
      Share that would have been issuable upon such conversion immediately prior
      to the occurrence of such Fundamental Transaction, the same kind and
      amount of securities, cash or property as it would have been entitled to
      receive upon the occurrence of such Fundamental Transaction if it had
      been, immediately prior to such Fundamental Transaction, the holder of one
      share of Common Stock (the "ALTERNATE CONSIDERATION"). For purposes of any
      such conversion, the determination of the Conversion Price shall be
      appropriately adjusted to apply to such Alternate Consideration based on
      the amount of Alternate Consideration issuable in respect of one share of
      Common Stock in such Fundamental Transaction, and the Company shall
      apportion the Conversion Price among the Alternate Consideration in a
      reasonable manner reflecting the relative value of any different
      components of the Alternate Consideration. If holders of Common Stock are
      given any choice as to the securities, cash or property to be received in
      a Fundamental Transaction, then the Holder shall be given the same choice
      as to the Alternate Consideration it receives upon any conversion of this
      Debenture following such Fundamental Transaction. To the extent necessary
      to effectuate he foregoing provisions, any successor to the Company or
      surviving entity in such Fundamental Transaction shall (i) assume in
      writing all of the obligations of the Company under this Debenture and the
      other Transaction Documents pursuant to written agreements in form and
      substance satisfactory to the Holder (such approval not to be unreasonably
      withheld or delayed) prior to such Fundamental Transaction and (ii) to
      issue to the Holder a new debenture of such successor entity evidenced by
      a written instrument substantially similar in form and substance to this
      Debenture, including, without limitation, having a principal amount and
      interest rate equal to the principal amounts and the interest rates of the
      Debentures held by the Holder and having similar ranking to the Debenture,
      and satisfactory to the Holder (any such approval not to be unreasonably
      withheld or delayed). The provisions of this Section shall apply similarly
      and equally to successive Fundamental Transactions and shall be applied
      without regard to any limitations on the conversion or redemption of this
      Debenture.

                                       12
<PAGE>

            e) Calculations. All calculations under this Section 5 shall be made
      to the nearest cent or the nearest 1/100th of a share, as the case may be.
      For purposes of this Section 5, the number of shares of Common Stock
      deemed to be issued and outstanding as of a given date shall be the sum of
      the number of shares of Common Stock (excluding treasury shares, if any)
      issued and outstanding.

            f) Notice To The Holder.

                        i. Adjustment To Conversion Price. Whenever the
                  Conversion Price is adjusted pursuant to any of this Section
                  5, the Company shall promptly mail to each Holder a notice
                  setting forth the Conversion Price after such adjustment and
                  setting forth a brief statement of the facts requiring such
                  adjustment. If the Company issues a variable rate security,
                  despite the prohibition thereon in the Purchase Agreement, the
                  Company shall be deemed to have issued Common Stock or Common
                  Stock Equivalents at the lowest possible conversion or
                  exercise price at which such securities may be converted or
                  exercised in the case of a Variable Rate Transaction (as
                  defined in the Purchase Agreement).

                        ii. Notice To Allow Conversion By Holder. If (A) the
                  Company shall declare a dividend (or any other distribution)
                  on the Common Stock; (B) the Company shall declare a special
                  nonrecurring cash dividend on or a redemption of the Common
                  Stock; (C) the Company shall authorize the granting to all
                  holders of the Common Stock rights or warrants to subscribe
                  for or purchase any shares of capital stock of any class or of
                  any rights; (D) the approval of any stockholders of the
                  Company shall be required in connection with any
                  reclassification of the Common Stock, any consolidation or
                  merger to which the Company is a party, any sale or transfer
                  of all or substantially all of the assets of the Company, of
                  any compulsory share exchange whereby the Common Stock is
                  converted into other securities, cash or property; (E) the
                  Company shall authorize the voluntary or involuntary
                  dissolution, liquidation or winding up of the affairs of the
                  Company; then, in each case, the Company shall cause to be
                  filed at each office or agency maintained for the purpose of
                  conversion of this Debenture, and shall cause to be mailed to
                  the Holder at its last addresses as it shall appear upon the
                  stock books of the Company, at least 10 calendar days prior to
                  the applicable record or effective date hereinafter specified,
                  a notice stating (x) the date on which a record is to be taken
                  for the purpose of such dividend, distribution, redemption,

                                       13
<PAGE>

                  rights or warrants, or if a record is not to be taken, the
                  date as of which the holders of the Common Stock of record to
                  be entitled to such dividend, distributions, redemption,
                  rights or warrants are to be determined or (y) the date on
                  which such reclassification, consolidation, merger, sale,
                  transfer or share exchange is expected to become effective or
                  close, and the date as of which it is expected that holders of
                  the Common Stock of record shall be entitled to exchange their
                  shares of the Common Stock for securities, cash or other
                  property deliverable upon such reclassification,
                  consolidation, merger, sale, transfer or share exchange;
                  PROVIDED, that the failure to mail such notice or any defect
                  therein or in the mailing thereof shall not affect the
                  validity of the corporate action required to be specified in
                  such notice. The Holder is entitled to convert this Debenture
                  during the 10-day period commencing the date of such notice to
                  the effective date of the event triggering such notice.

      Section 6. Optional and Mandatory Redemption.

            a) Optional Redemption at Election of Company. Subject to the
      provisions of this Section 6, at any time after the Closing Date and until
      one year after the Closing Date, the Company may deliver a notice to the
      Holders (an "Optional Redemption Notice" and the date such notice is
      deemed delivered hereunder, the "Optional Redemption Notice Date") of its
      irrevocable election to redeem some or all of the then outstanding
      Debentures, for an amount, in cash, equal to the Optional Redemption
      Amount on the 30th calendar day following the Optional Redemption Notice
      Date (such date, the "Optional Redemption Date" and such redemption, the
      "Optional Redemption"). The Optional Redemption Amount is due in full on
      the Optional Redemption Date. The Company may only effect an Optional
      Redemption if during the period commencing on the Optional Redemption
      Notice Date through to the Optional Redemption Date and through and
      including the date such shares of Common Stock are issued to the Holder,
      each of the Equity Conditions shall have been met. If any of the Equity
      Conditions shall cease to be satisfied at any time during the required
      period, then the Holder may elect to nullify the Optional Redemption
      Notice by notice to the Company within 3 calendar days after the first day
      on which any such Equity Condition has not been met (provided that if, by
      a provision of the Transaction Documents the Company is obligated to
      notify the Holder of the non-existence of an Equity Condition, such notice
      period shall be extended to the third calendar day after proper notice
      from the Company) in which case the Optional Redemption Notice shall be
      null and void, ab initio. The Company covenants and agrees that it will
      honor all Notice of Conversions tendered from the time of delivery of the
      Optional Redemption Notice through the date all amounts owing thereon are
      due and paid in full.

                                       14
<PAGE>

            b) Redemption Procedure. The payment of cash pursuant to an Optional
      Redemption shall be made on the Optional Redemption Date. If any portion
      of the cash payment for an Optional Redemption shall not be paid by the
      Company by the due date, interest shall accrue thereon at the rate of 18%
      per annum (or the maximum rate permitted by applicable law, whichever is
      less) until the payment of the Optional Redemption Amount plus all amounts
      owing thereon is paid in full. Alternatively, if any portion of the
      Optional Redemption Amount remains unpaid after such date, the Holders
      subject to such redemption may elect, by written notice to the Company
      given at any time thereafter, to invalidate ab initio all or part of such
      redemption, notwithstanding anything herein contained to the contrary,
      and, with respect the failure to honor the Optional Redemption the Company
      shall have no further right to exercise such Optional Redemption.
      Notwithstanding anything to the contrary in this Section 6, the Company's
      determination to redeem in cash or its elections under Section 6(b) shall
      be applied among the Holders of Debentures ratably. The Holder may elect
      to convert the outstanding principal amount of the Debenture pursuant to
      Section 4 prior to actual payment in cash for any redemption under this
      Section 6 by fax delivery of a Notice of Conversion to the Company.

            c) Mandatory Conversion. Provided the Equity Conditions have been
      continuously satisfied, then commencing after the date the Registration
      Statement has been declared effective ("Actual Effective Date"), the
      Company will have the option by written notice to the Holder ("Notice of
      Mandatory Conversion") of compelling the Holder to convert the outstanding
      and unpaid principal of this Debenture into Common Stock at the Conversion
      Price then in affect ("Mandatory Conversion"). The Notice of Mandatory
      Conversion must be given, if at all, on the first business day following a
      consecutive ten day trading period ("Lookback Period") during which the
      closing price of the Common Stock on a Trading Market is more than 150% of
      the Conversion Price each day during the Lookback Period. The date the
      Notice of Mandatory Conversion is given is the "Mandatory Conversion
      Date." The Notice of Mandatory Conversion shall specify the aggregate
      principal amount of the Debenture which is subject to Mandatory
      Conversion. Mandatory Conversion Notices must be given proportionately to
      all Holders of Debentures who received Debentures similar in terms and
      tenure as this Debenture. A Notice of Mandatory Conversion may not be
      given unless the Registration Statement has been effective for the
      unrestricted public resale of the Registrable Securities each day during
      the Lookback Period. The amount of Debenture principal included in a
      Mandatory Redemption Notice shall be reduced to an amount that would not
      cause the Holder to exceed the limitation described in Section 4(c) of
      this Debenture. A further Mandatory Conversion Notice may not be given
      until thirty (30) trading days have elapsed from the preceding Mandatory
      Conversion Date. Each Mandatory Conversion Date shall be a deemed
      Conversion Date and the Company will be required to deliver the Common
      Stock issuable pursuant to a Mandatory Conversion Notice in the same
      manner and time period as described in this Debenture.

      Section 7. Negative Covenants. Without the consent of Holders of sixty
percent (60%) of the outstanding Debentures, for so long as any portion of this
Debenture is outstanding, the Company will not and will not permit any of its
Subsidiaries to directly or indirectly:

                                       15
<PAGE>

            a) enter into, create, incur, assume, guarantee or suffer to exist
      any indebtedness for borrowed money of any kind, including but not limited
      to, a guarantee, on or with respect to any of its property or assets now
      owned or hereafter acquired or any interest therein or any income or
      profits therefrom that is senior to, or pari passu with, in any respect,
      the Company's obligations hereunder;

            b) enter into, create, incur, assume or suffer to exist any liens of
      any kind, on or with respect to any of its property or assets now owned or
      hereafter acquired or any interest therein or any income or profits
      therefrom, other than Permitted Liens;

            c) amend its certificate of incorporation, bylaws or other charter
      documents so as to adversely affect any rights of the Holder;

            d) repay, repurchase or offer to repay, repurchase or otherwise
      acquire more than a de minimis number of shares of its Common Stock or
      Common Stock Equivalents other than as to the Conversion Shares to the
      extent permitted or required under the Transaction Documents or as
      otherwise permitted by the Transaction Documents;

            e) enter into any agreement with respect to any of the foregoing; or

            f) pay cash dividends on any equity securities of the Company.

      Section 8. Events of Default.

            a) "Event of Default", wherever used herein, means any one of the
      following events (whatever the reason and whether it shall be voluntary or
      involuntary or effected by operation of law or pursuant to any judgment,
      decree or order of any court, or any order, rule or regulation of any
      administrative or governmental body):

                  i. any default in the payment of (A) the principal amount of
            any Debenture, or (B) interest (including Late Fees) on, or
            liquidated damages in respect of, any Debenture, as and when the
            same shall become due and payable (whether on a Conversion Date or
            the Maturity Date or by acceleration or otherwise) which default,
            solely in the case of an interest payment or other default under
            clause (B) above, is not cured, within 5 Business Days;

                  ii. the Company shall fail to observe or perform any other
            covenant or agreement contained in this Debenture (other than a
            breach by the Company of its obligations to deliver shares of Common
            Stock to the Holder upon conversion which breach is addressed in
            clause (viii) below) which failure is not cured, if possible to
            cure, within the earlier to occur of (A) 5 Business Days after
            notice of such default sent by the Holder or by any other Holder and
            (B)10 Business Days after the Company shall become or should have
            become aware of such failure;

                                       16
<PAGE>

                  iii. a default or event of default (subject to any grace or
            cure period provided for in the applicable agreement, document or
            instrument) shall occur under (A) any of the Transaction Documents
            other than the Debentures, or (B) any other material agreement,
            lease, document or instrument to which the Company or any Subsidiary
            is bound;

                  iv. any representation or warranty made herein, in any other
            Transaction Documents, in any written statement pursuant hereto or
            thereto, or in any other report, financial statement or certificate
            made or delivered to the Holder or any other holder of Debentures
            shall be untrue or incorrect in any material respect as of the date
            when made or deemed made;

                  v. (A) the Company or any of its Subsidiaries shall commence,
            or there shall be commenced against the Company or any such
            Subsidiary, a case under any applicable bankruptcy or insolvency
            laws as now or hereafter in effect or any successor thereto, or the
            Company or any Subsidiary commences any other proceeding under any
            reorganization, arrangement, adjustment of debt, relief of debtors,
            dissolution, insolvency or liquidation or similar law of any
            jurisdiction whether now or hereafter in effect relating to the
            Company or any Subsidiary thereof or (B) there is commenced against
            the Company or any Subsidiary thereof any such bankruptcy,
            insolvency or other proceeding which remains undismissed for a
            period of 45 days; or (C) the Company or any Subsidiary thereof is
            adjudicated by a court of competent jurisdiction insolvent or
            bankrupt; or any order of relief or other order approving any such
            case or proceeding is entered; or (D) the Company or any Subsidiary
            thereof suffers any appointment of any custodian or the like for it
            or any substantial part of its property which continues undischarged
            or unstayed for a period of 45 days; or (E) the Company or any
            Subsidiary thereof makes a general assignment for the benefit of
            creditors; or (F) the Company shall fail to pay, or shall state that
            it is unable to pay, or shall be unable to pay, its debts generally
            as they become due except for debts contested in good faith; or (G)
            the Company or any Subsidiary thereof shall call a meeting of its
            creditors with a view to arranging a composition, adjustment or
            restructuring of its debts; or (H) the Company or any Subsidiary
            thereof shall by any act or failure to act expressly indicate its
            consent to, approval of or acquiescence in any of the foregoing; or
            (I) any corporate or other action is taken by the Company or any
            Subsidiary thereof for the purpose of effecting any of the
            foregoing;

                  vi. the Company or any Subsidiary shall default in any of its
            obligations under any mortgage, credit agreement or other facility,
            indenture agreement, factoring agreement or other instrument under
            which there may be issued, or by which there may be secured or
            evidenced any indebtedness for borrowed money or money due under any
            long term leasing or factoring arrangement of the Company in an
            amount exceeding $100,000, whether such indebtedness now exists or
            shall hereafter be created and such default shall result in such
            indebtedness becoming or being declared due and payable prior to the
            date on which it would otherwise become due and payable;

                                       17
<PAGE>

                  vii. the Company shall be a party to any Change of Control
            Transaction or Fundamental Transaction, shall agree to sell or
            dispose of all or in excess of 45% of its assets in one or more
            transactions (whether or not such sale would constitute a Change of
            Control Transaction) or shall redeem or repurchase more than a de
            minimis number of its outstanding shares of Common Stock or other
            equity securities of the Company (other than redemptions of
            Conversion Shares and repurchases of shares of Common Stock or other
            equity securities of departing officers and directors of the
            Company; provided such repurchases shall not exceed $100,000, in the
            aggregate, for all officers and directors during the term of this
            Debenture); or

                  viii. the Company shall fail for any reason to deliver
            certificates to a Holder prior to the 7th Business Day after a
            Conversion Date pursuant to and in accordance with Section 4(d) or
            the Company shall provide notice to the Holder, including by way of
            public announcement, at any time, of its intention not to comply
            with requests for conversions of any Debentures in accordance with
            the terms hereof.

            b) Remedies Upon Event of Default. If any Event of Default occurs,
      the full principal amount of this Debenture, together with interest and
      other amounts owing in respect thereof, to the date of acceleration shall
      become, at the Holder's election, immediately due and payable in cash. The
      aggregate amount payable upon an Event of Default shall be equal to the
      Mandatory Prepayment Amount. Commencing 5 days after the occurrence of any
      Event of Default that results in the eventual acceleration of this
      Debenture, the interest rate on this Debenture shall accrue at the rate of
      15% per annum, or such lower maximum amount of interest permitted to be
      charged under applicable law. All Debentures for which the full Mandatory
      Prepayment Amount hereunder shall have been paid in accordance herewith
      shall promptly be surrendered to or as directed by the Company. The Holder
      need not provide and the Company hereby waives any presentment, demand,
      protest or other notice of any kind, and the Holder may immediately and
      without expiration of any grace period enforce any and all of its rights
      and remedies hereunder and all other remedies available to it under
      applicable law. Such declaration may be rescinded and annulled by Holder
      at any time prior to payment hereunder and the Holder shall have all
      rights as a Debenture holder until such time, if any, as the full payment
      under this Section shall have been received by it. No such rescission or
      annulment shall affect any subsequent Event of Default or impair any right
      consequent thereon.

                                       18
<PAGE>

      Section 9. Miscellaneous.

            a) Notices. Any and all notices or other communications or
      deliveries to be provided by the Holder hereunder, including, without
      limitation, any Notice of Conversion, shall be in writing and delivered
      personally, by facsimile or sent by a nationally recognized overnight
      courier service, addressed to the Company, at the address set forth above,
      facsimile number (914) 963-6699, attention Harold Brand, or such other
      address or facsimile number as the Company may specify for such purposes
      by notice to the Holders delivered in accordance with this Section. Any
      and all notices or other communications or deliveries to be provided by
      the Company hereunder shall be in writing and delivered personally, by
      facsimile, sent by a nationally recognized overnight courier service
      addressed to each Holder at the facsimile telephone number or address of
      such Holder appearing on the books of the Company, or if no such facsimile
      telephone number or address appears, at the principal place of business of
      the Holder. Any notice or other communication or deliveries hereunder
      shall be deemed given and effective on the earliest of (i) the date of
      transmission, if such notice or communication is delivered via facsimile
      at the facsimile telephone number specified in this Section prior to 6:00
      p.m. (New York City time), (ii) the date after the date of transmission,
      if such notice or communication is delivered via facsimile at the
      facsimile telephone number specified in this Section later than 6:00 p.m.
      (New York City time) on any date and earlier than 11:59 p.m. (New York
      City time) on such date, (iii) the second Business Day following the date
      of mailing, if sent by nationally recognized overnight courier service, or
      (iv) upon actual receipt by the party to whom such notice is required to
      be given.

            b) Absolute Obligation. Except as expressly provided herein, no
      provision of this Debenture shall alter or impair the obligation of the
      Company, which is absolute and unconditional, to pay the principal of,
      interest and liquidated damages (if any) on, this Debenture at the time,
      place, and rate, and in the coin or currency, herein prescribed. This
      Debenture is a direct debt obligation of the Company. This Debenture ranks
      pari passu with all other Debentures now or hereafter issued under the
      terms set forth herein.

            c) Lost or Mutilated Debenture. If this Debenture shall be
      mutilated, lost, stolen or destroyed, the Company shall execute and
      deliver, in exchange and substitution for and upon cancellation of a
      mutilated Debenture, or in lieu of or in substitution for a lost, stolen
      or destroyed Debenture, a new Debenture for the principal amount of this
      Debenture so mutilated, lost, stolen or destroyed but only upon receipt of
      evidence of such loss, theft or destruction of such Debenture, and of the
      ownership hereof, and indemnity, if requested, all reasonably satisfactory
      to the Company.

            d) Governing Law. All questions concerning the construction,
      validity, enforcement and interpretation of this Debenture shall be
      governed by and construed and enforced in accordance with the internal
      laws of the State of New York, without regard to the principles of
      conflicts of law thereof. Each party agrees that all legal proceedings
      concerning the interpretations, enforcement and defense of the
      transactions contemplated by any of the Transaction Documents (whether
      brought against a party hereto or its respective affiliates, directors,
      officers, shareholders, employees or agents) shall be commenced in the
      state and federal courts sitting in the City of New York, Borough of
      Manhattan (the "New York Courts"). Each party hereto hereby irrevocably
      submits to the exclusive jurisdiction of the New York Courts for the
      adjudication of any dispute hereunder or in connection herewith or with
      any transaction contemplated hereby or discussed herein (including with
      respect to the enforcement of any of the Transaction Documents), and
      hereby irrevocably waives, and agrees not to assert in any suit, action or
      proceeding, any claim that it is not personally subject to the
      jurisdiction of any such court, or such New York Courts are improper or

                                       19
<PAGE>

      inconvenient venue for such proceeding. Each party hereby irrevocably
      waives personal service of process and consents to process being served in
      any such suit, action or proceeding by mailing a copy thereof via
      registered or certified mail or overnight delivery (with evidence of
      delivery) to such party at the address in effect for notices to it under
      this Debenture and agrees that such service shall constitute good and
      sufficient service of process and notice thereof. Nothing contained herein
      shall be deemed to limit in any way any right to serve process in any
      manner permitted by law. Each party hereto hereby irrevocably waives, to
      the fullest extent permitted by applicable law, any and all right to trial
      by jury in any legal proceeding arising out of or relating to this
      Debenture or the transactions contemplated hereby. If either party shall
      commence an action or proceeding to enforce any provisions of this
      Debenture, then the prevailing party in such action or proceeding shall be
      reimbursed by the other party for its attorneys fees and other costs and
      expenses incurred with the investigation, preparation and prosecution of
      such action or proceeding.

            e) Waiver. Any waiver by the Company or the Holder of a breach of
      any provision of this Debenture shall not operate as or be construed to be
      a waiver of any other breach of such provision or of any breach of any
      other provision of this Debenture. The failure of the Company or the
      Holder to insist upon strict adherence to any term of this Debenture on
      one or more occasions shall not be considered a waiver or deprive that
      party of the right thereafter to insist upon strict adherence to that term
      or any other term of this Debenture. Any waiver must be in writing.

            f) Severability. If any provision of this Debenture is invalid,
      illegal or unenforceable, the balance of this Debenture shall remain in
      effect, and if any provision is inapplicable to any person or
      circumstance, it shall nevertheless remain applicable to all other persons
      and circumstances. If it shall be found that any interest or other amount
      deemed interest due hereunder violates applicable laws governing usury,
      the applicable rate of interest due hereunder shall automatically be
      lowered to equal the maximum permitted rate of interest. The Company
      covenants (to the extent that it may lawfully do so) that it shall not at
      any time insist upon, plead, or in any manner whatsoever claim or take the
      benefit or advantage of, any stay, extension or usury law or other law
      which would prohibit or forgive the Company from paying all or any portion
      of the principal of or interest on this Debenture as contemplated herein,
      wherever enacted, now or at any time hereafter in force, or which may
      affect the covenants or the performance of this indenture, and the Company
      (to the extent it may lawfully do so) hereby expressly waives all benefits
      or advantage of any such law, and covenants that it will not, by resort to
      any such law, hinder, delay or impeded the execution of any power herein
      granted to the Holder, but will suffer and permit the execution of every
      such as though no such law has been enacted.

            g) Next Business Day. Whenever any payment or other obligation
      hereunder shall be due on a day other than a Business Day, such payment
      shall be made on the next succeeding Business Day.

            h) Headings. The headings contained herein are for convenience only,
      do not constitute a part of this Debenture and shall not be deemed to
      limit or affect any of the provisions hereof.

                              *********************

                                       20
<PAGE>

         IN WITNESS WHEREOF, the Company has caused this Debenture to be duly
executed by a duly authorized officer as of the date first above indicated.

                                CYBRA CORPORATION

                               By:__________________________________________
                               Name: Harold Brand
                               Title:

                                       21
<PAGE>

                                     ANNEX A

                              NOTICE OF CONVERSION

      The undersigned hereby elects to convert principal under the 8%
Convertible Debenture of CYBRA Corporation, a New York corporation (the
"Company"), due on March ___, 2009, into shares of common stock, no par value
per share (the "Common Stock"), of the Company according to the conditions
hereof, as of the date written below. If shares are to be issued in the name of
a person other than the undersigned, the undersigned will pay all transfer taxes
payable with respect thereto and is delivering herewith such certificates and
opinions as reasonably requested by the Company in accordance therewith. No fee
will be charged to the holder for any conversion, except for such transfer
taxes, if any.

      By the delivery of this Notice of Conversion the undersigned represents
and warrants to the Company that its ownership of the Common Stock does not
exceed the amounts determined in accordance with Section 13(d) of the Exchange
Act, specified under Section 4 of this Debenture.

      The undersigned agrees to comply with the prospectus delivery requirements
under the applicable securities laws in connection with any transfer of the
aforesaid shares of Common Stock.

Conversion calculations:
                    Date to Effect Conversion:

                    Principal Amount of Debentures to be Converted:

                    Payment of Interest in Common Stock __ yes  __ no
                      If yes, $___ of Interest Accrued on Account of Conversion
                      at Issue.

                    Number of shares of Common Stock to be issued:

                    Signature:

                    Name:

                    Address:

                                       22
<PAGE>

                                   Schedule 1

                               CONVERSION SCHEDULE

The 8% Convertible Debentures due on March ___, 2009, in the aggregate principal
amount of $________ issued by CYBRA Corporation, a New York corporation. This
Conversion Schedule reflects conversions made under Section 4 of the above
referenced Debenture.

                                     Dated:

<TABLE>
<CAPTION>
====================== ====================== ===================== ===============
                                               Aggregate Principal
                                                Amount Remaining
                                                 Subsequent to
 Date of Conversion                                Conversion
(or for first entry,                              (or original
 Original Issue Date)   Amount of Conversion    Principal Amount)    Company Attest
---------------------- ---------------------- --------------------- ---------------
<S>                    <C>                    <C>                   <C>

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

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

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

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

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

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

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

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

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

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

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

====================== ====================== ===================== ===============

</TABLE>

                                       23

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