AMENDED AND RESTATED SENIOR SECURED CONVERTIBLE NOTE

Exhibit 10.7

EXECUTION COPY

AMENDED AND RESTATED SENIOR SECURED CONVERTIBLE NOTE

NEITHER THE ISSUANCE AND SALE OF THE SECURITIES REPRESENTED BY THIS CERTIFICATE NOR THE SECURITIES INTO WHICH THESE SECURITIES ARE CONVERTIBLE HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR APPLICABLE STATE SECURITIES LAWS. THE SECURITIES MAY NOT BE OFFERED FOR SALE, SOLD, TRANSFERRED OR ASSIGNED (I) IN THE ABSENCE OF (A) AN EFFECTIVE REGISTRATION STATEMENT FOR THE SECURITIES UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR (B) AN OPINION OF COUNSEL, IN A GENERALLY ACCEPTABLE FORM, THAT REGISTRATION IS NOT REQUIRED UNDER SAID ACT OR (II) UNLESS SOLD PURSUANT TO RULE 144 OR RULE 144A UNDER SAID ACT. NOTWITHSTANDING THE FOREGOING, THE SECURITIES MAY BE PLEDGED IN CONNECTION WITH A BONA FIDE MARGIN ACCOUNT OR OTHER LOAN OR FINANCING ARRANGEMENT SECURED BY THE SECURITIES. ANY TRANSFEREE OF THIS NOTE SHOULD CAREFULLY REVIEW THE TERMS OF THIS NOTE, INCLUDING SECTIONS 3(c)(iii) AND 20(a) HEREOF. THE HOLDER OF THIS NOTE AGREES TO THE TERMS AND PROVISIONS SET FORTH IN SECTION 4(q) OF THE SECURITIES PURCHASE AGREEMENT REGARDING THE COLLATERAL AGENT (AS DEFINED IN THE SECURITIES PURCHASE AGREEMENT). THE PRINCIPAL AMOUNT REPRESENTED BY THIS NOTE AND, ACCORDINGLY, THE SECURITIES ISSUABLE UPON CONVERSION HEREOF MAY BE LESS THAN THE AMOUNTS SET FORTH ON THE FACE HEREOF PURSUANT TO SECTION 3(c)(iii) OF THIS NOTE.

Stinger Systems, Inc.

Amended and Restated Senior Secured Convertible Note

           FOR VALUE RECEIVED, Stinger Systems, Inc., a Nevada corporation (the “ Company ”), hereby promises to pay to the order of CASTLERIGG MASTER INVESTMENTS LTD. or registered assigns (“ Holder ”) the amount set out above as the Original Principal Amount (as reduced pursuant to the terms hereof pursuant to redemption, conversion or otherwise, the “ Principal ”) when due, whether upon the Maturity Date (as defined below), acceleration, redemption or otherwise (in each case in accordance with the terms hereof) and to pay interest (“ Interest ”) on any outstanding Principal as may be required by Section 2, until the same becomes due and payable, whether upon the Maturity Date, acceleration, conversion, redemption or otherwise (in each case in accordance with the terms hereof). This Amended and Restated Senior Secured Convertible Note (including all Senior Secured Convertible Notes issued in exchange, transfer or replacement hereof, this “ Note ”) amends, supplements, modifies and completely restates and supersedes the Senior Secured Convertible Note, with an original

issuance date of February 29, 2008, issued by the Company to the Holder in the original Principal amount of $2,150,000.00, but shall not, except as specifically amended hereby or as set forth in the Amendment Agreement, constitute a release, satisfaction or novation of any of the obligations under any other Transaction Document (as defined in the Securities Purchase Agreement). This Note is one of an issue of Amended and Restated Senior Secured Convertible Notes issued pursuant to Section 1(a) of the Amendment Agreement on the Amendment and Restatement Date (collectively, the “ Notes ” and such other Amended and Restated Senior Secured Convertible Notes, the “ Other Notes ”). Certain capitalized terms used herein are defined in Section 30.

          (1) PAYMENTS OF PRINCIPAL . On the Maturity Date, the Company shall pay to the Holder an amount in cash representing all outstanding Principal, accrued and unpaid Interest and accrued and unpaid Late Charges, if any, on such Principal and Interest. The “ Maturity Date ” shall be March 1, 2011 as may be extended at the option of the Holder (i) in the event that, and for so long as, an Event of Default (as defined in Section 4(a)) shall have occurred and be continuing on the Maturity Date (as may be extended pursuant to this Section 1 or any event shall have occurred and be continuing on the Maturity Date (as may be extended pursuant to this Section 1 that with the passage of time and the failure to cure would result in an Event of Default and (ii) through the date that is ten (10) Business Days after the consummation of a Change of Control in the event that a Change of Control is publicly announced or a Change of Control Notice (as defined in Section 5(b)) is delivered prior to the Maturity Date. Other than as specifically permitted by this Note, the Company may not prepay any portion of the outstanding Principal, accrued and unpaid Interest or accrued and unpaid Late Charges on Principal and Interest, if any.

          (2) INTEREST; INTEREST RATE . Interest on this Note in an amount equal to $641,775.00 has been prepaid to the Holder as of the date set out above as the Issuance Date (the “ Issuance Date ”). Notwithstanding the foregoing, in the event the Maturity Date is extended by the Holder in accordance with Section 1(ii), Interest on this Note shall accrue at a rate equal to nine and ninety-five hundredths percent (9.95%) per annum for such period commencing on March 1, 2011 through such extended Maturity Date. From and after the occurrence and during the continuance of an Event of Default, Interest shall accrue at the rate of six percent (6.0%) per annum, provided, however, if the Maturity Date is extended by the Holder in accordance with Section 1(i), Interest shall accrue at the rate of fifteen percent (15.0%) per annum for such period commencing on March 1, 2011 through such extended Maturity Date. In the event that such Event of Default is subsequently cured, the Interest referred to in the preceding sentence shall cease to accrue as of the date of such cure; provided that the Interest as calculated and unpaid at such increased rate during the continuance of such Event of Default shall continue to apply to the extent relating to the days after the occurrence of such Event of Default through and including the date of cure of such Event of Default. Interest accrued pursuant to this Section 2 (other than as a result of an extension of the Maturity Date) shall be due and payable to the Holder in cash within five (5) Business Days of the date such Interest ceases to accrue hereunder.

          (3) CONVERSION OF NOTES . This Note shall be convertible into shares of the Company’s common stock, par value $0.001 per share (the “ Common Stock ”), on the terms and conditions set forth in this Section 3.

               (a)  Conversion Right . Subject to the provisions of Section 3(d), at any time or times on or after the Issuance Date, the Holder shall be entitled to convert any portion of the outstanding and unpaid Conversion Amount (as defined below) into fully paid and nonassessable shares of Common Stock in accordance with Section 3(c), at the Conversion Rate (as defined below). The Company shall not issue any fraction of a share of Common Stock upon any conversion. If the issuance would result in the issuance of a fraction of a share of Common Stock, the Company shall round such fraction of a share of Common Stock up to the nearest whole share. The Company shall pay any and all transfer, stamp and similar taxes that may be payable with respect to the issuance and delivery of Common Stock upon conversion of any Conversion Amount.

               (b)  Conversion Rate . The number of shares of Common Stock issuable upon conversion of any Conversion Amount pursuant to Section 3(a) shall be determined by dividing (x) such Conversion Amount by (y) the Conversion Price (the “ Conversion Rate ”).

                    (i) “ Conversion Amount ” means the sum of (A) the portion of the Principal to be converted, redeemed or otherwise with respect to which this determination is being made, (B) accrued and unpaid Interest with respect to such Principal and (C) accrued and unpaid Late Charges with respect to such Principal and Interest.

                    (ii) “ Conversion Price ” means, as of any Conversion Date (as defined below) or other date of determination, $0.29, subject to adjustment as provided herein.

               (c)  Mechanics of Conversion .

                    (i)  Optional Conversion . To convert any Conversion Amount into shares of Common Stock on any date (a “ Conversion Date ”), the Holder shall (A) transmit by facsimile (or otherwise deliver), for receipt on or prior to 11:59 p.m., New York Time, on such date, a copy of an executed notice of conversion in the form attached hereto as Exhibit I (the “ Conversion Notice ”) to the Company and (B) if required by Section 3(c)(iii), surrender this Note to a common carrier for delivery to the Company as soon as practicable on or following such date (or an indemnification undertaking with respect to this Note in the case of its loss, theft or destruction). On or before the first (1 ^st ) Business Day following the date of receipt of a Conversion Notice, the Company shall transmit by facsimile a confirmation (the “ Conversion Confirmation ”) of receipt of such Conversion Notice to the Holder and the Company’s Transfer Agent. On or before the (2 ^nd ) second Business Day following the date of receipt of a Conversion Notice (the “ Share Delivery Date ”), the Company shall (X) provided that the Transfer Agent is participating in the DTC Fast Automated Securities Transfer Program, credit such aggregate number of shares of Common Stock (including any Interest Shares) to which the Holder shall be entitled to the Holder’s or its designee’s balance account with DTC through its Deposit Withdrawal Agent Commission system or (Y) if the Transfer Agent is not participating in the DTC Fast Automated Securities Transfer Program, issue and deliver to the address as specified in the Conversion Notice, a certificate, registered in the name of the Holder or its designee, for the number of shares of Common Stock (including any Interest Shares) to which the Holder shall be entitled. If this Note is physically surrendered for conversion as required by Section 3(c)(iii) and the outstanding Principal of this Note is greater than the Principal portion of the Conversion

Amount being converted, then the Company shall as soon as practicable and in no event later than three (3) Business Days after receipt of this Note and at its own expense, issue and deliver to the holder a new Note (in accordance with Section 20(d)) representing the outstanding Principal not converted. The Person or Persons entitled to receive the shares of Common Stock issuable upon a conversion of this Note shall be treated for all purposes as the record holder or holders of such shares of Common Stock on the Conversion Date.

                    (ii)  Company’s Failure to Timely Convert . If the Company shall fail to issue a certificate to the Holder or credit the Holder’s balance account with DTC, as applicable, for the number of shares of Common Stock to which the Holder is entitled upon conversion of any Conversion Amount on or prior to the date which is three (3) Trading Days after the Conversion Date (a “ Conversion Failure ”), then (A) the Company shall pay damages to the Holder for each Trading Day of such Conversion Failure in an amount equal to 1.5% of the product of (I) the sum of the number of shares of Common Stock not issued to the Holder on or prior to the Share Delivery Date and to which the Holder is entitled, and (II) the Closing Sale Price of the Common Stock on the Share Delivery Date and (B) the Holder, upon written notice to the Company, may void its Conversion Notice with respect to, and retain or have returned, as the case may be, any portion of this Note that has not been converted pursuant to such Conversion Notice; provided that the voiding of a Conversion Notice shall not affect the Company’s obligations to make any payments which have accrued prior to the date of such notice pursuant to this Section 3(c)(ii) or otherwise. In addition to the foregoing, if within three (3) Trading Days after the Company’s receipt of the facsimile copy of a Conversion Notice the Company shall fail to issue and deliver a certificate to the Holder or credit the Holder’s balance account with DTC for the number of shares of Common Stock to which the Holder is entitled upon such holder’s conversion of any Conversion Amount, and if on or after such Trading Day the Holder purchases (in an open market transaction or otherwise) Common Stock to deliver in satisfaction of a sale by the Holder of Common Stock issuable upon such conversion that the Holder anticipated receiving from the Company (a “ Buy-In ”), then the Company shall, within three (3) Business Days after the Holder’s request and in the Holder’s discretion, either (A) pay cash to the Holder in an amount equal to the Holder’s total purchase price (including brokerage commissions and other out of pocket expenses, if any) for the shares of Common Stock so purchased (the “Buy-In Price” ), at which point the Company’s obligation to issue and deliver such certificate or to credit the Holder’s balance account with DTC for the number of shares of Common Stock to which the Holder is entitled upon such Holder’s conversion of any Conversion Amount shall terminate, or (B) promptly honor its obligation to deliver to the Holder a certificate or certificates representing such Common Stock and pay cash to the Holder in an amount equal to the excess (if any) of the Buy-In Price over the product of (1) such number of shares of Common Stock, times (2) the Closing Bid Price on the Conversion Date.

                    (iii)  Registration; Book-Entry . The Company shall maintain a register (the “ Register ”) for the recordation of the names and addresses of the holders of each Note and the principal amount of the Notes held by such holders (the “ Registered Notes ”). The entries in the Register shall be conclusive and binding for all purposes absent manifest error. The Company and the holders of the Notes shall treat each Person whose name is recorded in the Register as the owner of a Note for all purposes, including, without limitation, the right to receive payments of Principal and Interest hereunder, notwithstanding notice to the contrary. A Registered Note may be assigned or sold in whole or in part only by registration of such

assignment or sale on the Register. Upon its receipt of a request to assign or sell all or part of any Registered Note by a Holder, the Company shall record the information contained therein in the Register and issue one or more new Registered Notes in the same aggregate principal amount as the principal amount of the surrendered Registered Note to the designated assignee or transferee pursuant to Section 20. Notwithstanding anything to the contrary set forth herein, upon conversion of any portion of this Note in accordance with the terms hereof, the Holder shall not be required to physically surrender this Note to the Company unless (A) the full Conversion Amount represented by this Note is being converted or (B) the Holder has provided the Company with prior written notice (which notice may be included in a Conversion Notice) requesting reissuance of this Note upon physical surrender of this Note. The Holder and the Company shall maintain records showing the Principal, Interest and Late Charges, if any, converted and the dates of such conversions or shall use such other method, reasonably satisfactory to the Holder and the Company, so as not to require physical surrender of this Note upon conversion.

                    (iv)  Pro Rata Conversion; Disputes . In the event that the Company receives a Conversion Notice from more than one holder of Notes for the same Conversion Date and the Company can convert some, but not all, of such portions of the Notes submitted for conversion, the Company, subject to Section 3(d), shall convert from each holder of Notes electing to have Notes converted on such date a pro rata amount of such holder’s portion of its Notes submitted for conversion based on the principal amount of Notes submitted for conversion on such date by such holder relative to the aggregate principal amount of all Notes submitted for conversion on such date. In the event of a dispute as to the number of shares of Common Stock issuable to the Holder in connection with a conversion of this Note, the Company shall issue to the Holder the number of shares of Common Stock not in dispute and resolve such dispute in accordance with Section 25.

               (d)  Limitations on Conversions .

                    (i)  Beneficial Ownership . The Company shall not effect any conversion of this Note, and the Holder of this Note shall not have the right to convert any portion of this Note pursuant to Section 3(a), to the extent that after giving effect to such conversion, the Holder (together with the Holder’s affiliates) would beneficially own in excess of 9.99% (the “ Maximum Percentage ”) of the number of shares of 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 Note 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 Note beneficially owned by the 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 Notes or 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 3(d)(i), beneficial ownership shall be calculated in accordance with Section 13(d) of the Securities Exchange Act of 1934, as amended (the “ 1934 Act ”). For purposes of this Section 3(d)(i), 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) the Company’s most recent Form 10-K, Form 10-Q, Form 8-K or other public filing with the Securities Exchange Commission, as the case may be (y) a more recent public announcement by the Company or (z) any other notice by the Company or the Transfer Agent setting forth the number of shares of Common Stock outstanding. For any reason at any time, upon the written or oral request of the Holder, the Company shall within one (1) Business Day 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 Note, by the Holder or its affiliates since the date as of which such number of outstanding shares of Common Stock was reported. By written notice to the Company, the Holder may increase or decrease the Maximum Percentage to any other percentage not in excess of 9.99% specified in such notice; provided that (i) any such increase will not be effective until the sixty-first (61 ^st ) day after such notice is delivered to the Company, and (ii) any such increase or decrease will apply only to the Holder and not to any other holder of Notes.

                    (ii)  Principal Market Regulation . The Company shall not be obligated to issue any shares of Common Stock upon conversion of this Note if the issuance of such shares of Common Stock would exceed the aggregate number of shares of Common Stock which the Company may issue upon conversion or exercise, as applicable, of the Notes and Warrants without breaching the Company’s obligations under the rules or regulations of any applicable Eligible Market (the “ Exchange Cap ”), except that such limitation shall not apply in the event that the Company (A) obtains the approval of its stockholders as required by the applicable rules of such Eligible Market for issuances of Common Stock in excess of such amount or (B) obtains a written opinion from outside counsel to the Company that such approval is not required, which opinion shall be reasonably satisfactory to the Required Holders. Until such approval or written opinion is obtained, no purchaser of the Notes pursuant to the Securities Purchase Agreement (each, a “ Purchaser ” and collectively the “ Purchasers ”) shall be issued in the aggregate, upon conversion or exercise or otherwise, as applicable, of Notes or Warrants, shares of Common Stock in an amount greater than the product of the Exchange Cap multiplied by a fraction, the numerator of which is the principal amount of Notes issued to any Purchaser pursuant to the Securities Purchase Agreement on the Closing Date and the denominator of which is the aggregate principal amount of all Notes issued to all of the Purchasers pursuant to the Securities Purchase Agreement on the Closing Date (with respect to each Purchaser, the “ Exchange Cap Allocation ”). In the event that any Purchaser shall sell or otherwise transfer any of such Purchaser’s Notes, the transferee shall be allocated a pro rata portion of such Purchaser’s Exchange Cap Allocation, and the restrictions of the prior sentence shall apply to such transferee with respect to the portion of the Exchange Cap Allocation allocated to such transferee. In the event that any holder of Notes shall convert all of such holder’s Notes into a number of shares of Common Stock which, in the aggregate, is less than such holder’s Exchange Cap Allocation, then the difference between such holder’s Exchange Cap Allocation and the number of shares of Common Stock actually issued to such holder shall be allocated to the respective Exchange Cap Allocations of the remaining holders of Notes on a pro rata basis in proportion to the aggregate principal amount of the Notes then held by each such holder.

               (4)  RIGHTS UPON EVENT OF DEFAULT .

               (a)  Event of Default . Each of the following events shall constitute an “ Event of Default ”:

                    (i) the suspension from trading or failure of the Common Stock to be listed on an Eligible Market for a period of five (5) consecutive Trading Days or for more than an aggregate of ten (10) Trading Days in any 365-day period;

                    (ii) the Company’s (A) failure to cure a Conversion Failure by delivery of the required number of shares of Common Stock within ten (10) Business Days after the applicable Conversion Date or (B) notice, written or oral, to any holder of the Notes, including by way of public announcement or through any of its agents, at any time, of its intention not to comply with a request for conversion of any Notes into shares of Common Stock that is tendered in accordance with the provisions of the Notes, other than pursuant to Section 3(d);

                    (iii) at any time following the tenth (10 ^th ) consecutive Business Day that the Holder’s Authorized Share Allocation is less than the number of shares of Common Stock that the Holder would be entitled to receive upon a conversion of the full Conversion Amount of this Note (without regard to any limitations on conversion set forth in Section 3(d) or otherwise);

                    (iv) the Company’s failure to pay to the Holder any amount of Principal, Interest, Late Charges or other amounts when and as due under this Note (including, without limitation, the Company’s failure to pay any redemption payments or amounts hereunder) or any other Transaction Document (as defined in the Securities Purchase Agreement) or any other agreement, document, certificate or other instrument delivered in connection with the transactions contemplated hereby and thereby to which the Holder is a party, except, in the case of a failure to pay Interest and Late Charges when and as due, in which case only if such failure continues for a period of at least five (5) Business Days;

                    (v) any default under, redemption of or acceleration prior to maturity of any Indebtedness of the Company or any of its Subsidiaries (as defined in Section 3(a) of the Securities Purchase Agreement) other than with respect to any Other Notes;

                    (vi) the Company or any of its Subsidiaries, pursuant to or within the meaning of Title 11, U.S. Code, or any similar Federal, foreign or state law for the relief of debtors (collectively, “ Bankruptcy Law ”), (A) commences a voluntary case, (B) consents to the entry of an order for relief against it in an involuntary case, (C) consents to the appointment of a receiver, trustee, assignee, liquidator or similar official (a “ Custodian ”), (D) makes a general assignment for the benefit of its creditors or (E) admits in writing that it is generally unable to pay its debts as they become due;

                    (vii) a court of competent jurisdiction enters an order or decree under any Bankruptcy Law that (A) is for relief against the Company or any of its Subsidiaries in an involuntary case, (B) appoints a Custodian of the Company or any of its Subsidiaries or (C) orders the liquidation of the Company or any of its Subsidiaries;

                    (viii) a final judgment or judgments for the payment of money aggregating in excess of (A) $100,000 are rendered against the Company or any of its Subsidiaries or (B) $50,000 are rendered against any of the officers or directors of the Company or any of its Subsidiaries, and which judgments are not, within sixty (60) days after the entry thereof, bonded, discharged or stayed pending appeal, or are not discharged within sixty (60) days after the expiration of such stay; provided, however, that any judgment which is covered by insurance or an indemnity from a credit worthy party shall not be included in calculating the amounts set forth above so long as the Company provides the Holder a written statement from such insurer or indemnity provider (which written statement shall be reasonably satisfactory to the Holder) to the effect that such judgment is covered by insurance or an indemnity and the Company will receive the proceeds of such insurance or indemnity within thirty (30) days of the issuance of such judgment;

                    (ix) the Company breaches any representation, warranty, covenant or other term or condition of any Transaction Document, except, in the case of a breach of a covenant or other term or condition of any Transaction Document which is curable, only if such breach continues for a period of at least ten (10) consecutive Business Days;

                    (x) any breach or failure in any respect to comply with either of Sections 10 or 16 of this Note;

                    (xi) the Company does not receive an aggregate of $3,000,000 in proceeds (less reasonable transactional expenses actually incurred and the original issue discount permitted under Section 1(c) of the September 2008 Securities Purchase Agreement) pursuant to the September 2008 Notes on or prior to October 3, 2008; or

                    (xii) any Event of Default (as defined in the Other Notes) occurs with respect to any Other Notes.

               (b)  Redemption Right . Upon the occurrence of an Event of Default, the Company shall within one (1) Business Day deliver written notice thereof via facsimile and overnight courier (an “ Event of Default Notice ”) to the Holder. At any time after the earlier of the Holder’s receipt of an Event of Default Notice and the Holder becoming aware of an Event of Default, the Holder may require the Company to redeem all or any portion of this Note by delivering written notice thereof (the “ Event of Default Redemption Notice ”) to the Company, which Event of Default Redemption Notice shall indicate the portion of this Note the Holder is electing to redeem. Each portion of this Note subject to redemption by the Company pursuant to this Section 4(b) shall be redeemed by the Company at a price equal to the greater of (i) the product of (A) the Conversion Amount to be redeemed and (B) the Redemption Premium and (ii) the product of (A) the Conversion Rate with respect to such Conversion Amount in effect at such time as the Holder delivers an Event of Default Redemption Notice and (B) the product of (1) the Equity Value Redemption Premium and (2) the greatest Closing Sale Price of the Common Stock beginning on the date immediately preceding such Event of Default and ending on the date the Holder delivers the Event of Default Redemption Notice (the “ Event of Default Redemption Price ”). Redemptions required by this Section 4(b) shall be made in accordance with the provisions of Section 14. To the extent redemptions required by this Section 4(b) are deemed or determined by a court of competent jurisdiction to be prepayments of the Note by the Company, such redemptions shall be deemed to be voluntary prepayments. The parties hereto agree that in the event of the Company’s redemption of any portion of the Note under this Section 4(b), the Holder’s damages would be uncertain and difficult to estimate because of the parties’ inability to predict future interest rates and the uncertainty of the availability of a suitable substitute investment opportunity for the Holder. Accordingly, any Redemption Premium due under this

          (5) RIGHTS UPON FUNDAMENTAL TRANSACTION AND CHANGE OF CONTROL .

               (a)  Assumption . The Company shall not enter into or be party to a Fundamental Transaction unless (i)  the Successor Entity assumes in writing all of the obligations of the Company under this Note and the other Transaction Documents in accordance with the provisions of this Section 5(a) pursuant to written agreements in form and substance reasonably satisfactory to the Required Holders and approved by the Required Holders prior to such Fundamental Transaction, including agreements to deliver to each holder of Notes in exchange for such Notes a security of the Successor Entity evidenced by a written instrument substantially similar in form and substance to the Notes, including, without limitation, having a principal amount and interest rate equal to the principal amounts and the interest rates of the Notes then outstanding held by such holder, having similar conversion rights and having similar ranking to the Notes, and satisfactory to the Required Holders and (ii)  the Successor Entity (including its Parent Entity) is a publicly traded corporation whose common stock is quoted on or listed for trading on an Eligible Market (a “ Public Successor Entity ”). Upon the occurrence of any Fundamental Transaction, the Successor Entity shall succeed to, and be substituted for (so that from and after the date of such Fundamental Transaction, the provisions of this Note referring to the “Company” shall refer instead to the Successor Entity), and may exercise every right and power of the Company and shall assume all of the obligations of the Company under this Note with the same effect as if such Successor Entity had been named as the Company herein. Upon consummation of the Fundamental Transaction, the Successor Entity shall deliver to the Holder confirmation that there shall be issued upon conversion or redemption of this Note at any time after the consummation of the Fundamental Transaction, in lieu of the shares of the Company’s Common Stock (or other securities, cash, assets or other property) issuable upon the conversion or redemption of the Notes prior to such Fundamental Transaction, such shares of the publicly traded common stock (or their equivalent) of the Successor Entity (including its Parent Entity), as adjusted in accordance with the provisions of this Note. 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 Note.

                    (b)  Redemption Right . (i) No sooner than fifteen (15) Trading Days nor later than ten (10) Trading Days prior to the consummation of a Change of Control, but not prior to the public announcement of such Change of Control, the Company shall deliver written notice thereof via facsimile and overnight courier to the Holder (a “ Change of Control Notice ”). At any time during the period beginning after the Holder’s receipt of a Change of Control Notice and ending twenty (20) Trading Days after the date of the consummation of such Change of Control, the Holder may require the Company to redeem all or any portion of this Note by delivering written notice thereof (“ Change of Control Redemption Notice ”) to the Company, which Change of Control Redemption Notice shall indicate the Conversion Amount the Holder is electing to redeem. The portion of this Note subject to redemption pursuant to this Section 5 shall be redeemed by the Company in cash at a price equal to the greater of (i) 150% of the Conversion Amount being redeemed and (ii) the product of (A) the Equity Value Redemption Premium and (B) the product of (1) the Conversion Amount being redeemed multiplied by (2)

the quotient determined by dividing (x) the aggregate cash consideration and the aggregate cash value of any non-cash consideration per Common Share to be paid to the holders of the Common Shares upon consummation of the Change of Control (any such non-cash consideration consisting of marketable securities to be valued at the higher of the Closing Sale Price of such securities as of the Trading Day immediately prior to, the Closing Sale Price as of the Trading Day immediately following the public announcement of such proposed Change of Control and the Closing Sale Price of the Common Stock immediately prior to the public announcement of such proposed Change of Control) by (y) the Conversion Price (the “ Change of Control Redemption Price ”). Redemptions required by this Section 5 shall be made in accordance with the provisions of Section 14 and shall have priority to payments to stockholders in connection with a Change of Control. To the extent redemptions required by this Section 5(b) are deemed or determined by a court of competent jurisdiction to be prepayments of the Note by the Company, such redemptions shall be deemed to be voluntary prepayments. Notwithstanding anything to the contrary in this Section 5, but subject to Section 3(d), until the Change of Control Redemption Price (together with any interest thereon) is paid in full, the Conversion Amount submitted for redemption under this Section 5(b) (together with any interest thereon) may be converted, in whole or in part, by the Holder into Common Stock pursuant to Section 3. The parties hereto agree that in the event of the Company’s redemption of any portion of the Note under this Section 5(b), the Holder’s damages would be uncertain and difficult to estimate because of the parties’ inability to predict future interest rates and the uncertainty of the availability of a suitable substitute investment opportunity for the Holder. Accordingly, any Change of Control redemption premium due under this Section 5(b) is intended by the parties to be, and shall be deemed, a reasonable estimate of the Holder’s actual loss of its investment opportunity and not as a penalty.

                    (ii) Notwithstanding anything to the contrary contained above, if the Successor Entity in a Change of Control transaction is a Public Successor Entity and has a market capitalization in excess of $350 million as of the Change of Control Notice Due Date (as defined below) and the consideration being paid to the holders of Common Stock in such Change of Control consists solely of its publicly traded common stock, the Successor Entity may, in lieu of paying the Change of Control Redemption Price in cash, elect to pay some or all of the Conversion Amount to be redeemed (the “ Change of Control Redemption Amount ” ) to the Holder of this Note by causing the conversion of such Change of Control Redemption Amount, provided there has been no Equity Conditions Failure (other than with respect to clause (vi)(A) of the definition of Equity Condition), in accordance with this Section 5(b) (a “ Successor Conversion ”). On or prior to the date which is the tenth (10 ^th ) Trading Day prior to the date of the consummation of the Change of Control transaction (the “ Change of Control Notice Due Date ”), the Successor Entity shall deliver written notice (each, a “ Successor Change of Control Notice ” and the date all of the holders receive such notice is referred to as to the “ Successor Change of Control Notice Date ”), to each holder of Notes, which Successor Change of Control Notice shall (A) state, if applicable, what portion of the Change of Control Redemption Amount of such holder’s Note the Successor Entity elects to have converted, upon receipt of a Change of Control Redemption Notice, pursuant to a Successor Conversion (such amount to be converted, the “ Successor Conversion Amount ”) and (B) state, if applicable, what portion of the Change of Control Redemption Amount the Successor Entity elects to have redeemed, upon receipt of a Change of Control Redemption Notice, or would be required to be redeemed in accordance with the provisions of the Notes and (ii) if some or all of the Change of Control Redemption Amount

is to be paid pursuant to a Successor Conversion, certify that the Equity Conditions (other than with respect to clause (vi)(A) of the definition of Equity Condition) have been satisfied as of the date of the Successor Change of Control Notice. Each Successor Change of Control Notice shall be irrevocable. If the Successor Entity does not timely deliver a Successor Change of Control Notice in accordance with this Section 5(b), then the Successor Entity shall be deemed to have delivered an irrevocable Successor Change of Control Notice stating that the entire Change of Control Redemption Price shall be paid in cash. Except as expressly provided in this Section 5(b)(ii), the Company shall convert or redeem the applicable Change of Control Redemption Amount of this Note pursuant to this Section 5(b) and the corresponding Change of Control Redemption Amounts of the Other Notes in the same pro rata proportion pursuant to the corresponding provisions of the Other Notes in the same manner. The Successor Conversion Amount (whether set forth in the Successor Change of Control Notice or by operation of this Section 5(b)) shall be converted in accordance with Section 5(b)(iii) and the Successor Entity Redemption Amount shall be redeemed in accordance with Section 5(b)(i).

                    (iii) Subject to Section 3(d), if the Successor Entity delivers a Successor Change of Control Notice and elects a Successor Conversion in accordance with Section 5(b)(ii), then the applicable Change of Control Redemption Price shall be converted by converting such Change of Control Redemption Price at the Successor Conversion Price (A) on the date of the consummation of the Change of Control if the Change of Control Redemption Notice is received prior to the consummation of the Change of Control or (B) within five (5) Business Days after the Company’s receipt of such Change of Control Redemption Notice otherwise (the “ Change of Control Conversion Date ”); provided that the Equity Conditions have been satisfied (or waived in writing by the Holder). If the Equity Conditions are not satisfied (or waived in writing by the Holder), then at the option of the Holder designated in writing to the Company and the Successor Entity, the Holder may require the Company to do any one or more of the following: (i) the Company shall redeem all or any part designated by the Holder of the unconverted Successor Conversion Amount (such designated amount is referred to as the “ First Redemption Amount ”) on the Change of Control Conversion Date and the Company shall pay to the Holder on the Change of Control Conversion Date, by wire transfer of immediately available funds, an amount in cash equal to 130% of such First Redemption Amount, and/or (ii) the Successor Conversion shall be null and void with respect to all or any part designated by the Holder of the unconverted Change of Control Redemption Price and the Holder shall be entitled to all the rights of a holder of this Note with respect to such amount of the Change of Control Redemption Price; provided , however , that the Conversion Price for such unconverted Change of Control Redemption Price shall thereafter be adjusted to equal the lesser of (A) the Successor Conversion Price as in effect on the date on which the Holder voided the Successor Conversion and (B) the Successor Conversion Price that would be in effect as if the Change of Control was consummated on the date on which the Holder delivers a Conversion Notice. If the Company fails to redeem any First Redemption Amount on or before the Change of Control Conversion Date by payment of such amount on the Change of Control Conversion Date, then the Holder shall have the rights set forth in Section 14 (a) as if the Company failed to pay the applicable Redemption Price and all other rights under this Note (including, without limitation, such failure constituting an Event of Default described in Section 4(a)). Notwithstanding anything to the contrary in this Section 5(b)(iii), but subject to 3(d), until the Company or the Successor Entity, as applicable, delivers the Change of Control Redemption Price to the Holder, the Change of Control Redemption Price may be converted by the Holder

into Common Stock pursuant to Section 3. Notwithstanding the foregoing, if the Change of Control Conversion Date occurs after the consummation of the Change of Control, the Successor Entity shall be obligated, in lieu of the Company, to deliver the Change of Control Redemption Price, whether by delivery of the Successor Conversion Amount at the Successor Conversion Price or by delivery of the Change of Control Redemption Amount.

          (6) RIGHTS UPON ISSUANCE OF PURCHASE RIGHTS AND OTHER CORPORATE EVENTS .

               (a)  Purchase Rights . If at any time the Company grants, issues or sells any Options, Convertible Securities or rights to purchase stock, warrants, securities or other property pro rata to the record holders of any class of Common Stock (the “ Purchase Rights ”), then the Holder will be entitled to acquire, upon the terms applicable to such Purchase Rights, the aggregate Purchase Rights which the Holder could have acquired if the Holder had held the number of shares of Common Stock acquirable upon complete conversion of this Note (without taking into account any limitations or restrictions on the convertibility of this Note) immediately before the date on which a record is taken for the grant, issuance or sale of such Purchase Rights, or, if no such record is taken, the date as of which the record holders of Common Stock are to be determined for the grant, issue or sale of such Purchase Rights.

               (b)  Other Corporate Events . In addition to and not in substitution for any other rights hereunder, prior to the consummation of any Fundamental Transaction pursuant to which holders of shares of Common Stock are entitled to receive securities or other assets with respect to or in exchange for shares of Common Stock (a “ Corporate Event ”), the Company shall make appropriate provision to insure that the Holder will thereafter have the right to receive upon a conversion of this Note, at the Holder’s option, (i) in addition to the shares of Common Stock receivable upon such conversion, such securities or other assets to which the Holder would have been entitled with respect to such shares of Common Stock had such shares of Common Stock been held by the Holder upon the consummation of such Corporate Event (without taking into account any limitations or restrictions on the convertibility of this Note) or (ii) in lieu of the shares of Common Stock otherwise receivable upon such conversion, such securities or other assets received by the holders of shares of Common Stock in connection with the consummation of such Corporate Event in such amounts as the Holder would have been entitled to receive had this Note initially been issued with conversion rights for the form of such consideration (as opposed to shares of Common Stock) at a conversion rate for such consideration commensurate with the Conversion Rate. Provision made pursuant to the preceding sentence shall be in a form and substance satisfactory to the Required Holders. The provisions of this Section shall apply similarly and equally to successive Corporate Events and shall be applied without regard to any limitations on the conversion or redemption of this Note.

          (7) RIGHTS UPON ISSUANCE OF OTHER SECURITIES .

               (a)  Adjustment of Conversion Price upon Issuance of Common Stock . If and whenever on or after the Subscription Date, the Company issues or sells, or in accordance with this Section 7(a) is deemed to have issued or sold, any shares of Common Stock (including the issuance or sale of shares of Common Stock owned or held by or for the account of the Company, but excluding shares of Common Stock deemed to have been issued or sold by the

Company in connection with any Excluded Securities) for a consideration per share (the “ New Issuance Price ”) less than a price (the “ Applicable Price ”) equal to the Conversion Price in effect immediately prior to such issue or sale or deemed issuance or sale (the foregoing a “ Dilutive Issuance ”), then immediately after such Dilutive Issuance the Conversion Price then in effect shall be reduced to an amount equal to the New Issuance Price. For purposes of determining the adjusted Conversion Price under this Section 7(a), the following shall be applicable:

                    (i) Issuance of Options . If the Company in any manner grants or sells any Options and the lowest price per share for which one share of Common Stock is issuable upon the exercise of any such Option or upon conversion or exchange or exercise of any Convertible Securities issuable upon exercise of such Option is less than the Applicable Price, then such share of Common Stock shall be deemed to be outstanding and to have been issued and sold by the Company at the time of the granting or sale of such Option for such price per share. For purposes of this Section 7(a)(i), the “lowest price per share for which one share of Common Stock is issuable upon the exercise of any such Option or upon conversion or exchange or exercise of any Convertible Securities issuable upon exercise of such Option” shall be equal to the sum of the lowest amounts of consideration (if any) received or receivable by the Company with respect to any one share of Common Stock upon granting or sale of the Option, upon exercise of the Option and upon conversion or exchange or exercise of any Convertible Security issuable upon exercise of such Option. No further adjustment of the Conversion Price shall be made upon the actual issuance of such share of Common Stock or of such Convertible Securities upon the exercise of such Options or upon the actual issuance of such Common Stock upon conversion or exchange or exercise of such Convertible Securities.

                    (ii) Issuance of Convertible Securities . If the Company in any manner issues or sells any Convertible Securities and the lowest price per share for which one share of Common Stock is issuable upon such conversion or exchange or exercise thereof is less than the Applicable Price, then such share of Common Stock shall be deemed to be outstanding and to have been issued and sold by the Company at the time of the issuance or sale of such Convertible Securities for such price per share. For the purposes of this Section 7(a)(ii), the “lowest price per share for which one share of Common Stock is issuable upon such conversion or exchange or exerci