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EXHIBIT 4.1    
  

DOT HILL SYSTEMS CORP.

CERTIFICATE OF DESIGNATION OF PREFERENCES,

RIGHTS AND LIMITATIONS

OF

SERIES A REDEEMABLE CONVERTIBLE PREFERRED STOCK  

PURSUANT TO SECTION 151 OF THE

DELAWARE GENERAL CORPORATION LAW 

        The
undersigned, James L. Lambert and Preston Romm, do hereby certify that: 

        1.    They
are the President and Secretary, respectively, of DOT HILL SYSTEMS CORP., a Delaware corporation (the "Corporation"). 

        2.    The
Corporation is authorized to issue 10,000,000 shares of preferred stock, none of which have been issued. 

        3.    The
following resolutions were duly adopted by the Board of Directors: 

        WHEREAS,
the Certificate of Incorporation of the Corporation provides for a class of its authorized stock known as preferred stock, comprised of 10,000,000 shares, $0.001 par value,
issuable from time to time in one or more series; 

        WHEREAS,
the Board of Directors of the Corporation is authorized to fix the dividend rights, dividend rate, voting rights, conversion rights, rights and terms of redemption and
liquidation preferences of any wholly unissued series of preferred stock and the number of shares constituting any series and the designation thereof, of any of them; and 

        WHEREAS,
it is the desire of the Board of Directors of the Corporation, pursuant to its authority as aforesaid, to fix the rights, preferences, restrictions and other matters relating to
a series of the preferred stock, which shall consist of up to 6,000 shares of the 10,000,000 shares of preferred stock which the corporation has the authority to issue, as follows: 

        NOW,
THEREFORE, BE IT RESOLVED, that the Board of Directors does hereby provide for the issuance of a series of preferred stock for cash or exchange of other securities, rights or
property and does hereby fix and determine the rights, preferences, restrictions and other matters relating to such series of preferred stock as follows: 

TERMS OF PREFERRED STOCK  

        Section 1.    Designation, Amount and Par Value.    The series of preferred stock shall be designated as its 7%
Series A Redeemable Convertible Preferred Stock (the "Preferred Stock") and the number of shares so designated shall be 6,000 (which shall not be
subject to increase without the consent of the holders of at least 75% of the Preferred Stock (each, a "Holder" and collectively, the
"Holders")). Each share of Preferred Stock shall have a par value of $0.001 per share and a stated value equal to $1,000 (the
"Stated Value"). Capitalized terms not otherwise defined herein shall have the meaning given such terms in Section 8 hereof. 

        Section 2.    Dividends.    

        (a)  Holders
shall be entitled to receive and the Corporation shall pay, cumulative dividends at the rate per share (as a percentage of the Stated Value per share) of 7% per
annum (subject to increase pursuant to Sections 6(c) and 7(a)), payable quarterly on June 1, September 1, 

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December 1 and March 1, beginning with June 1, 2003 and on any Conversion Dates, Optional Redemption Dates and on any Monthly Redemption Dates (with respect to such shares of
Preferred Stock as are being converted or redeemed, as applicable, on such date) unless such redemption is deferred pursuant to Section 6(c) (except that, if such date is not a Trading Day, the
payment date shall be the next succeeding Trading Day)("Dividend Payment Date"), in shares of Common Stock or, if funds are legally available therefore,
in cash. The per share value of Common Stock paid as dividends shall be equal to 90%, in the case of shares of Common stock registered for immediate resale, and 70%, in the case of shares not
registered for immediate resale, of the average of the 20 VWAPs immediately prior to the Dividend Payment Date; provided,  however, in the event such shares
not registered for immediate resale are subsequently registered for resale within 60 days of the applicable
Dividend Payment Date, the per share value of the Common Stock paid as dividends shall equal 80% of the average of such 20 VWAPs and the Holder shall promptly return a number of shares of Common Stock
to the extent necessary to reflect such repricing. The Holders shall have the same rights and remedies with respect to the delivery of any such shares as if such shares were being issued pursuant to
Section 5. Subject to the terms and conditions herein, the decision whether to pay dividends in shares of Common Stock or to pay for dividends in cash shall be at the discretion of the
Corporation; except that, if funds are not legally available for the payment of dividends in cash on a Dividend Payment Date, the Corporation shall be required to pay dividends in registered shares of
Common Stock and then if such shares are not available, in unregistered shares of Common Stock. Notwithstanding anything to the contrary herein, if the Corporation notifies the Holders in writing
that, based upon the written advise of its outside legal counsel, the Corporation may not pay dividends in shares of Common Stock, then the Holder shall have the right on any Dividend Payment Date
during such periods to purchase a number of shares of Common Stock equal to the number of shares otherwise issuable as dividends for a purchase price per share equal to the par value of the Common
Stock. Upon a Holder receiving such shares of Common Stock, the Corporation shall be deemed to have satisfied its obligation to pay any dividends giving rise to, and subject to, such Holder's right to
purchase Common Stock at par value. Delivery of the shares so purchased shall be subject to the same terms and conditions as the issuance of shares of Common Stock as payment of dividends in lieu of
cash. On the Closing Date the Corporation shall have notified the Holders whether it may lawfully issue cash dividends. The Corporation shall promptly notify the Holders at anytime the Corporation
shall become able or unable to lawfully pay cash dividends or anytime the Corporation shall become able or unable to lawfully pay Common Stock, as the case may be, as dividends. If funds will be
legally available to pay dividends in cash on a Dividend Payment Date, the Corporation shall provide the Holders written notice not less than twenty days prior to each Dividend Payment Date of its
intention to pay dividends in shares of Common Stock or pay dividends in cash (the Corporation may indicate in such notice that the election contained in such notice shall continue for later periods
until revised). If funds are legally available to pay dividends in cash, failure to timely provide such written notice shall be deemed an election by the Corporation to pay cash. Dividends on the
Preferred Stock shall be calculated on the basis of a 360-day year, shall accrue daily commencing on the Original Issue Date, and shall be deemed to accrue from such date whether or not
earned or declared and whether or not there are profits, surplus or other funds of the Corporation legally available for the payment of dividends. Dividends shall not accrue with respect to shares of
Preferred Stock surrendered for conversion pursuant to Section 5(a) effective as of the applicable Voluntary Conversion Date (as defined in Section 5(a)), provided that the Corporation
delivers the Underlying Shares subject to such Voluntary Conversion within the time period prescribed in Section 5(b)(i). Except as otherwise provided herein, if at any time the Corporation
pays dividends partially in cash and partially in shares, then such payment shall be distributed ratably among the Holders based upon the number of shares of Preferred Stock held by each Holder. Any
dividends, whether paid in cash or shares, that are not paid within three Trading Days following a Dividend Payment Date shall continue to accrue and shall entail a 

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late fee, which must be paid in cash, at the rate of 18% per annum or the lesser rate permitted by applicable law (such fees to accrue daily, from the Dividend Payment Date through and including the
date of payment). 

        (b)  Notwithstanding
anything to the contrary contained herein, if funds are legally available to pay dividends in cash, the Corporation must pay dividends in cash if: 

          (i)  the
number of shares of Common Stock at the time authorized, unissued and unreserved for all purposes is insufficient to pay such dividends in shares of Common Stock
and permit conversion in full of all outstanding Stated Value; 

        (ii)  the
Underlying Shares (x) are not then registered for resale pursuant to an effective Underlying Shares Registration Statement and (y) may not be sold
without volume restrictions pursuant to Rule 144 promulgated under the Securities Act, as determined by counsel to the Corporation pursuant to a written opinion letter, addressed to the
Corporation's transfer agent in form and substance acceptable to the applicable Holder; 

        (iii)  the
Common Stock is not then listed or quoted on a Principal Market; or 

        (iv)  the
issuance of such shares and subsequent conversions of all then outstanding Stated Value would result in a violation of Section 5(a)(ii). 

        (c)  So
long as any Preferred Stock shall remain outstanding, neither the Corporation nor any subsidiary thereof shall redeem, purchase or otherwise acquire directly or
indirectly any Junior Securities (other than pursuant to the exercise of the Corporation's right of repurchase with respect to any shares of Common Stock issued to employees of the Corporation
pursuant to any employee benefit plan in effect on the date of filing of this Certificate of Designation, as amended from time to time, but only if at the time of such repurchase the Corporation's
financial situation will permit it to legally pay dividends in cash for the at least the following 6 months), nor shall the Corporation directly or indirectly pay or declare any dividend or
make any distribution (other than a dividend or distribution described in Section 5 or dividends due and paid in the ordinary course on preferred stock of the Corporation at such times when the
Corporation is in compliance with its payment and other obligations hereunder) upon, nor shall any distribution be made in respect of, any Junior Securities, nor shall any monies be set aside for or
applied to the purchase or redemption (through a sinking fund or otherwise) of any Junior Securities or shares pari passu with the Preferred Stock. 

        (d)  The
Corporation acknowledges and agrees that the capital of the Corporation (as such term is used in Section 154 of the General Corporation Law of Delaware) in
respect of the Preferred Stock and any future issuances of the Corporation's capital stock shall be equal to the aggregate par value of such Preferred Stock or capital stock, as the case may be, and
that, on or after the date of the Purchase
Agreement, it shall not increase the capital of the Corporation with respect to any shares of the Corporation's capital stock issued and outstanding on such date. The Corporation also acknowledges and
agrees that it shall not create any special reserves under Section 171 of the General Corporation Law of Delaware without the prior written consent of each Holder. 

        Section 3.    Voting Rights.    Except as otherwise provided herein and as otherwise required by law, the
Preferred Stock shall have no voting rights. However, so long as any shares of Preferred Stock are outstanding, the Corporation shall not, without the affirmative vote of the Holders of at least 75%
of the shares of the Preferred Stock then outstanding, (a) alter or change adversely the powers, preferences or rights given to the Preferred Stock or alter or amend this Certificate of
Designation, (b) authorize or create any class of stock ranking as to dividends, redemption or distribution of assets upon a Liquidation (as defined in Section 4) senior to or otherwise  pari passu with the Preferred Stock, (c) amend its certificate of incorporation or other charter documents so as to affect adversely any rights 

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of the Holders, (d) increase the authorized number of shares of Preferred Stock, or (e) enter into any agreement with respect to the foregoing. 

        Section 4.    Liquidation.    Upon any liquidation, dissolution or winding-up of the Corporation,
whether voluntary or involuntary (a "Liquidation"), the Holders shall be entitled to receive out of the assets of the Corporation, whether such assets
are capital or surplus, for each share of Preferred Stock an amount equal to the Stated Value per share plus any accrued and unpaid dividends thereon and any other fees or liquidated damages owing
thereon before any distribution or payment shall be made to the holders of any Junior Securities, and if the assets of the Corporation shall be insufficient to pay in full such amounts, then the
entire assets to be distributed to the Holders shall be distributed among the Holders ratably in accordance with the respective amounts that would be payable on such shares if all amounts payable
thereon were paid in full. A Fundamental Transaction or Acquisition Transaction shall not be treated as a Liquidation. The Corporation shall mail written notice of any such Liquidation, not less than
45 days prior to the payment date stated therein, to each record Holder. 

        Section 5.    Conversion.    

(a)    (i)    Conversions at Option of Holder.    Each share of Preferred Stock shall be convertible into that number of
shares of Common Stock (subject to the limitations set forth in Sections 5(a)(ii) and (iii)) determined by dividing the Stated Value of such share of Preferred Stock by the Set Price, at the
option of the Holder, at any time and from time to time from and after the Original Issue Date. Holders shall effect conversions by providing the Corporation with the form of conversion notice
attached hereto as Annex A (a "Conversion Notice"). Each Conversion Notice shall specify the number of
shares of Preferred Stock to be converted, the number of shares of Preferred Stock owned prior to the conversion at issue, the number of shares of Preferred Stock owned subsequent to the conversion at
issue and the date on which such conversion is to be effected, which date may not be prior to the date the Holder delivers such Conversion Notice to the Corporation by facsimile (the
"Voluntary Conversion Date"). If no Voluntary Conversion Date is specified in a Conversion Notice, the Voluntary Conversion Date shall be the date that
such Conversion Notice to the Corporation is deemed delivered hereunder.
The calculations and entries set forth in the Conversion Notice shall control in the absence of manifest or mathematical error. 

        (ii)    Beneficial Ownership Conversion Restriction.    Notwithstanding anything herein to the contrary, except as
otherwise provided for in this subsection 5(a)(ii), a Holder may not convert shares of Preferred Stock (whether at the election of the Holder or the Corporation), and the Corporation may not issue
shares of Common Stock as payment of dividends hereunder to the extent such conversion or receipt of such dividend payment would result in the Holder, together with any affiliate thereof, beneficially
owning (as determined in accordance with Section 13(d) of the Exchange Act and the rules promulgated thereunder) Underlying Shares representing in excess of 9.999% of the then issued and
outstanding shares of Common Stock (for purposes of clarity, in making such calculation, the Corporation may exclude any shares of the Corporation's Capital Stock other than Underlying Shares which
may be beneficially owned by such Holder, such as shares purchased in the open market). Subject to the preceding sentence, the Holder shall have the authority and obligation to determine whether the
restriction contained in this Section will limit any particular conversion or dividend payment hereunder and to the extent that the Holder determines that the limitation contained in this Section
applies, the determination of which portion of the shares of Preferred Stock are convertible or payment with respect to such dividend shall be the responsibility and obligation of the Holder. If the
Holder has delivered a Conversion Notice for shares of Preferred Stock, or if the Corporation has notified the Holders pursuant to Section 2(a) of its 

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intent to pay dividends in shares of Common Stock, that, without regard to any other shares that the Holder or its affiliates may beneficially own, would result in the issuance in excess of the
permitted amount hereunder, the Corporation shall notify the Holder of this fact and the Corporation shall honor the conversion or dividend payment for the maximum number of shares of Preferred Stock
permitted to be converted or paid on such Conversion Date in accordance with the periods described in Section 5(b) and, in the case of conversion, at the option of the Holder either retain
shares of Preferred Stock tendered for conversion in excess of the permitted amount hereunder for future conversions or return such excess shares of Preferred Stock permitted to the Holder or, in the
case of dividends, at the election of the Corporation, pay such dividends in cash or increase the dividend on the shares of Preferred Stock with respect to which such excess dividend shares were
payable to 12% per annum thereafter. The provisions of this Section may be waived by a Holder (but only as to itself and not to any other Holder) upon not less than 61 days prior notice to the
Corporation. Other Holders shall be unaffected by any such waiver. For purposes of clarification, this provision shall not preclude a Holder from converting or the Corporation from issuing shares of
Common Stock to the Holder if and to the extent that the number of shares of Common Stock actually held at such time by the Holder is less than 9.999% of the then issued and outstanding shares of
Common Stock. 

        (iii)    Limitation on Number of Shares Issuable.    Notwithstanding anything herein to the contrary, the Corporation
shall not issue to any Holder any shares of Common Stock, including pursuant to any rights herein, including, without limitation, any conversion rights or right to issue shares of Common Stock in
payment of dividends, to the extent such shares, when added to the number of shares of Common Stock issued or issuable (A) upon conversion of any shares of Preferred Stock pursuant to
Section 5(a)(i), (B) upon exercise of those certain warrants issued pursuant to: (1) that certain Securities Purchase Agreement dated December 18, 2002 by and among the
Corporation and the Purchasers set forth therein, (2) that certain Engagement Letter dated November 7, 2002 between Roth Capital Partners, LLC and the Corporation (the
"Engagement Letter") and (3) that certain Omicron Partners Investment Consent Agreement with Sun Microsystems, Inc.
("Sun"), dated December 17, 2002, given in
connection with the issuance hereunder pursuant to which Sun will be granted a warrant purchase up to a number of shares of Common Stock equal to 5% of the shares of Common Stock issued to Holders
pursuant to the Purchase Agreement, would exceed 19.999% of the Corporation's outstanding Common Stock immediately prior to the Closing Date, or such greater or lesser number of shares of Common Stock
permitted pursuant to the corporate governance rules of the American Stock Exchange or other Principal Market that is at the time the principal trading exchange or market for the Common Stock, based
upon share volume, as confirmed in writing by counsel to the Corporation (the "Maximum Aggregate Share Amount"), unless the Corporation first obtains
shareholder approval permitting such issuances in accordance with New York Stock Exchange rules or other Principal Market rules ("Shareholder
Approval"). Each Holder shall be entitled to a portion of the Maximum Aggregate Share Amount equal to the quotient obtained by dividing (x) such the number of shares of
Preferred Stock initially purchased by such Holder by (y) the aggregate number of shares purchased by all Holders. Such portions shall be adjusted upward ratably in the event all of the shares
of Preferred Stock of any Holder are no longer outstanding. If at any time the number of shares of Common Stock which would, notwithstanding the limitation set forth herein, be issuable and sold to
the Holder during the following 3 months (assuming all dividends are paid in shares of Common Stock during such period and all Monthly Redemptions are paid in shares of Common Stock assuming
the Monthly Conversion Price for such Monthly Redemptions equals the VWAP on the applicable date of determination) equals or exceeds the Maximum Aggregate Share Amount, then the Corporation shall
notify the 

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Holders that it will either (A) use commercially reasonable efforts to obtain the Shareholder Approval applicable to such issuance as soon as is possible, but in any event not later than the
75th day after the date in which the Corporation determines (or is notified by the Holder) that the Maximum Aggregate Share Amount would be exceeded, or (B) grant each Holder the right to cause
the Corporation to redeem, within 5 days of such notice date, all or part of the outstanding Preferred Stock held by such Holder in an amount equal to 100% of the Stated Value of the Preferred
Stock outstanding plus all accrued but unpaid dividends and any other fees owing thereon. The Corporation must make its election by written notice to the Holders by the fifth Trading Day after the
date that the Corporation determines (or is notified by the Holder) that the Maximum Aggregate Share Amount would be exceeded. If the Corporation shall have elected the first option pursuant to the
immediately preceding sentence and the Corporation shall have failed to obtain the Shareholder Approval on or prior to the 75th day after the date in which the Corporation determines (or is notified
by a Holder) that the Maximum Aggregate Share Amount would be exceeded, then the dividend on the Preferred Stock shall thereafter be 18% per annum. 

        (iv)    Benefit of the Bargain.    Notwithstanding anything to the contrary contained herein, if on any Conversion
Date the Corporation has failed to timely satisfy its conversion obligations under this Section 5(a) and Section 6(b) with respect to the Preferred Stock then, at the option of the
Holder, the Corporation, in lieu of delivering Underlying Shares, shall deliver, within three (3) Trading Days of such applicable Conversion
Date, an amount in cash equal to the product of the number of Underlying Shares otherwise deliverable to the Holder in connection with such Conversion Date and the highest VWAP during the period
commencing on the Conversion Date and ending on the Trading Day prior to the date such payment is made. 

        (v)    Forced Conversion.    Subject to the provisions of this Section 5(a)(v), if after the Effective Date the
VWAPs for any 15 consecutive Trading Days exceeds 200% of the Set Price then in effect, then within 1 Trading Day of such 15th Trading Day, the Corporation may deliver a notice to the Holders (a
"Forced Conversion Notice" and the date the Holders are so notified, the "Forced Conversion Notice
Date") notifying the Holders that all of their shares of Preferred Stock shall be converted to Common Stock at the Set Price (such conversion, the
"Forced Conversion"). Such Forced Conversion shall be deemed to have occurred automatically, without further action on the part of any Holder or the
Corporation, as of the Forced Conversion Notice Date (the "Forced Conversion Date"). The Corporation may only effect a Forced Conversion if on the
Forced Conversion Notice Date, each of the following shall be true: (i) the Corporation shall have duly honored all conversions and redemptions scheduled to occur or occurring by virtue of one
or more Conversion Notices prior to the Forced Conversion Date, (ii) there is an effective Underlying Shares Registration Statement pursuant to which the Holder is permitted to utilize the
prospectus thereunder to resell all of the Underlying Shares issued to the Holder and all of the Underlying Shares as are issuable to the Holder upon conversion in full of the Preferred Stock subject
to the Forced Conversion (and the Corporation believes, in good faith, that such effectiveness will continue uninterrupted for the foreseeable future), (iii) the Common Stock is listed for
trading on a Principal Market (and the Corporation believes, in good faith, that trading of the Common Stock on the Principal Market will continue uninterrupted for the foreseeable future),
(iv) all liquidated damages and other amounts owing in respect of the Preferred Stock shall have been paid or will, concurrently with the issuance of the Underlying Shares, be paid;
(v) there is a sufficient number of authorized but unissued and otherwise unreserved shares of Common Stock for the issuance of all the Underlying Shares as are issuable to the Holder upon
conversion in full of the Preferred Stock subject to the Forced Conversion; (vi) no Triggering Event has occurred and is continuing; (vii) no public announcement of a pending or proposed
Fundamental Transaction or Acquisition Transaction has occurred that has not been consummated; and (viii) such issuance would be permitted in full without violating the limitations set forth in
Section 5(a)(ii) and (iii). 

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(b)    (i)    Not
later than three Trading Days after each Voluntary Conversion Date or Forced Conversion Date, as applicable (each, a "Conversion
Date"), the Corporation will deliver to the Holder (A) a certificate or certificates which, after the Effective Date, shall be free of restrictive legends and trading
restrictions (other than those required by Section 4.1 of the Purchase Agreement) representing the number of shares of Common Stock being acquired upon the conversion of shares of Preferred
Stock, and (B) a bank check in the amount of accrued and unpaid dividends (if the Corporation has elected or is required to pay accrued dividends in cash). After the Effective Date, the
Corporation shall, upon request of the Holder, if available, deliver any certificate or certificates required to be delivered by the Corporation under this Section electronically through the
Depository Trust Corporation or another established clearing corporation performing similar functions. If in the case of any Conversion Notice such certificate or certificates are not delivered to or
as directed by the applicable Holder by the third Trading Day after the Conversion Date and the Holder shall not have elected to receive cash pursuant to Section 5(a)(iv) or exercise its
rights under Sections 7(a), the Holder shall be entitled to elect by written notice to the Corporation at any time on or before its receipt of such certificate or certificates thereafter, to rescind
such conversion, in which event the Corporation shall immediately return the certificates representing the shares of Preferred Stock tendered for conversion. 

        (ii)  The
Corporation's obligations to issue and deliver the Underlying Shares upon conversion and redemption of Preferred Stock 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 Corporation 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
Corporation to the Holder in connection with the issuance of such Underlying 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. If the Corporation fails to deliver to the Holder such certificate or
certificates pursuant to Section 5(b)(i) by the third Trading Day after the Conversion Date and, with respect to such delivery, no election has been made by the Holder pursuant to
Section 5(a)(iv), Section 5(b)(iii) or Section 7(a), the Corporation shall pay to such Holder, in cash, as liquidated damages and not as a penalty, for each $5,000 of
Stated Value of Preferred Stock being converted, $50 per Trading Day (increasing to $100 per Trading Day after 3 Trading Days and increasing to $200 per Trading Day 6 Trading Days after such damages
begin to accrue) for each Trading Day after such third Trading Day until such certificates are delivered. Nothing herein shall limit a Holder's right to pursue actual damages for the Corporation's
failure to deliver certificates representing shares of Common Stock upon conversion within the period specified herein and such Holder shall have the right to pursue all remedies available to it
hereunder, at law or in equity including, without limitation, a decree of specific performance and/or injunctive relief. 

        (iii)  If
the Corporation fails to deliver to the Holder such certificate or certificates pursuant to Section 5(b)(i) by the third Trading Day after the
Conversion Date and, with respect to such delivery, no election has been made by the Holder pursuant to Section 5(a)(iv), Section 5(b)(ii) or Section 7(a) and if after such
third Trading Day the Holder purchases (in an open market transaction or otherwise) Common Stock to deliver in satisfaction of a sale by such Holder of the Underlying Shares which the Holder was
entitled to receive upon such conversion (a "Buy-In"), then the Corporation shall pay in cash to the 

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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 was entitled to receive from the conversion at issue multiplied by (2) the price at which the sell order giving rise to such purchase
obligation was executed. 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 shares of
Preferred Stock with respect to which the aggregate sale price giving rise to such purchase obligation is $10,000, under clause (A) of the immediately preceding sentence the Corporation shall
be required to pay the Holder $1,000. The Holder shall provide the Corporation 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 Corporation. 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 Corporation's failure to timely deliver certificates representing shares of Common
Stock upon conversion of the shares of Preferred Stock as required pursuant to the terms hereof. 

(c)    (i)    The
conversion price for each share of Preferred Stock shall equal $3.25 (the "Set
Price"), subject to adjustment as set forth below. 

        (ii)  Subject
to paragraph (viii) of this Section 5(c), if the Corporation, at any time while the Preferred Stock is outstanding: (A) shall pay 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, (B) subdivide
outstanding shares of Common Stock into a larger number of shares, (C) combine (including by way of reverse stock split) outstanding shares of Common Stock into a smaller number of shares, or
(D) issue by reclassification of shares of the Common Stock any shares of capital stock of the Corporation, then the Set Price shall be multiplied by a fraction of which the numerator shall be
the number of shares of Common Stock Outstanding before such event and of which the denominator shall be the number of shares of Common Stock Outstanding 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 reclassification. 

        (iii)  Subject
to paragraph (viii) of this Section 5(c), if the Corporation, at any time while the Preferred Stock is outstanding, shall issue rights, options
or warrants to all holders of Common Stock (and not to Holders) entitling them to subscribe for or purchase shares of Common Stock at a price per share less than the VWAP at the record date mentioned
below, then the Set Price shall be multiplied by a fraction, of which the denominator shall be the number of shares of the Common Stock Outstanding
on the date of issuance of such rights or warrants plus the number of additional shares of Common Stock offered for subscription or purchase, and of which the numerator shall be the number of shares
of the Common Stock Outstanding on the date of issuance of such rights or warrants plus the number of shares which the aggregate offering price of the total number of shares so offered (assuming
receipt by the Corporation in full of all consideration payable upon exercise of such rights, options or warrants) would purchase at such VWAP. Such adjustment shall be made whenever such rights or
warrants are issued, and shall become effective immediately after the record date for the determination of stockholders entitled to receive such rights, options or warrants. 

        (iv)  Subject
to paragraph (viii) of this Section 5(c), if the Corporation or, in the case of the issuance of any Common Stock Equivalents, any subsidiary
thereof, as applicable, at any time while a the Preferred Stock is outstanding, shall offer, sell, grant any option or warrant to purchase or offer, sell or grant any right to reprice its securities,
or otherwise dispose of or 

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issue any Common Stock or any equity or equity equivalent securities (including any equity, debt or other instrument that is at any time over the life thereof convertible into or exchangeable for
Common Stock) (collectively, "Common Stock Equivalents") entitling any Person to acquire shares of Common Stock, at a price per share less than the Set
Price (a "Dilutive Issuance"), as adjusted hereunder (if the holder of the Common Stock or Common Stock Equivalent 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 are issued in
connection with such issuance, be entitled to receive shares of Common Stock at a price per share which is less than the Set Price, such issuance shall be deemed to have occurred for less than the Set
Price), then the Set Price shall be reduced by multiplying the Set Price by a fraction, the numerator of which is the number of shares of Common Stock Outstanding immediately prior to the Dilutive
Issuance plus the number of shares of Common Stock which the offering price for such Dilutive Issuance (assuming receipt by the Corporation in full of all consideration payable upon exercise of such
rights, options or warrants) would purchase at the Set Price, and the denominator of which shall be the sum of the number of shares of Common Stock Outstanding immediately prior to the Dilutive
Issuance plus the number of shares of Common Stock so issued or issuable in connection with the Dilutive Issuance. Such adjustment shall be made whenever such Common Stock or Common Stock Equivalents
are issued. The Corporation shall notify the Holder in writing, no later than the Trading Day following the issuance of any Common Stock or Common Stock Equivalent subject to this section, indicating
therein the applicable issuance price, or applicable reset price, exchange price, conversion price and other pricing terms. 

        (v)  Subject
to paragraph (viii) of this Section 5(c), if the Corporation, at any time while the Preferred Stock is outstanding, shall distribute to all holders
of Common Stock (and not to Holders) evidences of its indebtedness or assets or rights or warrants to subscribe for or purchase any security, then in each such case the Set Price shall be adjusted by
multiplying the Set 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 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 Holders 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. 

        (vi)  Subject
to paragraph (viii) of this Section 5(c), in case of any reclassification of the Common Stock or any compulsory share exchange pursuant to which
the Common Stock is converted into other securities, cash or property, the Holders shall have the right thereafter to at their option, (A) convert the then outstanding Stated Value, together
with all accrued but unpaid dividends and any other amounts then owing hereunder in respect of the Preferred Stock only into the shares of stock and other securities, cash and property receivable upon
or deemed to be held by holders of the Common Stock following such reclassification or share exchange, and the Holders of the Preferred Stock shall be entitled upon such event to receive such amount
of securities, cash or property as the shares of the Common Stock of the Corporation into which the then outstanding Stated Value, together with all accrued but unpaid interest and any other amounts
then owing hereunder in respect of the Preferred Stock could have been converted immediately prior to such reclassification or share exchange would have been entitled or (B) require the
Corporation to prepay the aggregate of its Stated 

9

 

Value of Preferred Stock, plus all dividends and other amounts due and payable thereon, at the Triggering Redemption Amount. The entire prepayment price shall be paid in cash. This provision shall
similarly apply to successive reclassifications or share exchanges. 

      (vii)  All
calculations under this Section 5(c) shall be made to the nearest cent or the nearest 1/100th of a share, as the case may be. The number of shares of Common
Stock outstanding at any given time shall not include shares owned or held by or for the account of the Corporation, and the disposition of any such shares shall be considered an issue or sale of
Common Stock. For purposes of this Section 5(c), the number of shares of Common Stock deemed to be outstanding (the "Common Stock Outstanding")
as of a given date shall be the sum of the number of shares of Common Stock (excluding treasury shares, if any) outstanding. 

      (viii)  Notwithstanding
anything to the contrary herein, (A) no adjustment to the Set Price will be made under this Section 5: (1) upon the issuance or
exercise of any warrants, options or convertible securities issued and outstanding on the Closing Date, (2) upon the grant or exercise of any stock or options which may hereafter be granted to
or exercised by any employee, director or consultant under (a) the 2000 Non-Employee Directors' Stock Option Plan, (b) the 2000 Amended and Restated Employee Stock Purchase
Plan, or (c) the 2000 Amended and Restated Equity Incentive Plan, all as may be amended from time to time; (3) upon the issuance of any shares of Preferred Stock or the issuance or
exercise of any Warrants issued or issuable in accordance with the terms of the Purchase Agreement or the Engagement Letter; (4) upon conversion of or payment of dividends on the Preferred
Stock, (5) upon the issuance of securities in connection with a merger, consolidation, acquisition, strategic transaction, licensing arrangement, business partnership or joint venture approved
by the Board of Directors, or (6) upon the issuance of securities pursuant to any equipment loan or leasing arrangement, real property leasing arrangement, commercial credit arrangement or debt
financing from a bank or similar financial institution approved by the Board of Directors, and (B) no adjustment to the Set Price will be made under any of paragraphs (ii) through
(vii) of this Section 5 with respect to the occurrence of any event to the extent any adjustment is made under any other such paragraph with respect to such event. 

        (ix)  Whenever
the Set Price is adjusted pursuant to this Section the Corporation shall promptly mail to each Holder, a notice setting forth the Set Price after such
adjustment and setting forth a brief statement of the facts requiring such adjustment. 

        Section 6.    Redemption.    

        (a)    Optional Redemption.    Subject to the provisions of this Section 6(a), the Corporation may, at any
time, 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 all, but not less than all, of the then outstanding Preferred Stock, for an
amount, in cash, equal to the Optional Redemption Amount on the 30th Trading 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 later of the
Optional Redemption Date or the date the Corporation receives the certificate(s) representing the Preferred Stock subject to the Optional Redemption and not converted. The Corporation may only effect
an Optional Redemption if from the Optional Redemption Notice Date through to the Optional Redemption Date, each of the following shall be true: (i) the Corporation shall have duly honored all
conversions and redemptions scheduled to occur or occurring by virtue of one or more Conversion Notices prior to the Optional Redemption Date, (ii) there is an effective Underlying Shares
Registration Statement pursuant to which the Holders are permitted to utilize the prospectus thereunder to resell all of the Underlying Shares issued to the Holders and all of the Underlying Shares as
are issuable to the Holders upon conversion in full of the Preferred Stock subject to the Optional Redemption (and the Corporation believes, in good faith, that such effectiveness will continue
uninterrupted for the foreseeable future), (iii) the 

10

 

Common Stock is listed for trading on the Principal Market (and the Corporation believes, in good faith, that trading of the Common Stock on the Principal Market will continue uninterrupted for the
foreseeable future), (iv) all liquidated damages and other amounts owing in respect of the Preferred Stock shall have been paid or will, concurrently with the issuance of the Underlying Shares,
be paid in cash; (v) there is a sufficient number of authorized but unissued and otherwise unreserved shares of Common Stock for the issuance of all the Underlying Shares as are issuable to the
Holder upon conversion in full of the Preferred Stock subject to the Optional Redemption; (vi) no Triggering Event has occurred and is continuing; and (vii) no public announcement of a
pending or proposed Fundamental Transaction or Acquisition Transaction has occurred that has not been consummated. If any of the foregoing conditions shall cease to be satisfied at any time during the
required period, then the Holder may elect to nullify the Optional Redemption Notice in which case the Option Redemption Notice shall be null and void, ab
initio. The Holders may convert, pursuant to Section 5(a)(i), any shares of Preferred Stock subject to an Optional Redemption at any time prior to the date that the
Optional Redemption Amount and all amounts owing thereon are due and paid in full. The Corporation covenants and agrees that it will honor all Conversion Notices tendered from the time of delivery of
the Optional Redemption Notice through the date all amounts owing thereon are due and paid in full. 

        (b)    Monthly Redemption.    On each Monthly Redemption Date, the Corporation may redeem each Holder's
pro-rata share (based on the Holder's (or their predecessor's) of the initial purchase of the Preferred Stock pursuant to the Purchase Agreement, adjusted upward ratably in the event all
of the shares of Preferred Stock of any Holder are no longer outstanding) of the Monthly Redemption Amount. Each Monthly Redemption Amount due on each Monthly Redemption Date shall be paid in
cash except as set forth below. As to any Monthly Redemption and upon not less than 20 Trading Days' prior written irrevocable notice, in lieu of a cash payment of the Monthly Redemption Amount, the
Corporation may elect to pay 100% of a Monthly Redemption in Underlying Shares based on a conversion price equal to 90% of the average of the 20 VWAPs immediately prior to the applicable Monthly
Redemption Date (subject to adjustment for any stock dividend, stock split, stock combination or other similar event affecting the Common Stock during such 20 Trading Day period) (the
"Monthly Conversion Price"); provided, however, that the
Corporation may not pay any portion of the Monthly Redemption Amount in Underlying Shares unless, on the Monthly Redemption Date and during the 20 Trading Day period immediately prior thereto,
(i) there is an effective Underlying Shares Registration Statement pursuant to which the Holder is permitted to utilize the prospectus thereunder to resell all of the Underlying Shares issued
to the Holder and all of the Underlying Shares as are issuable to the Holder upon conversion in full of the Preferred Stock subject to such Monthly Redemption (and the Corporation believes, in good
faith, that such effectiveness will continue uninterrupted for the foreseeable future), (ii) the Common Stock is listed for trading on a Principal Market (and the Corporation believes, in good
faith, that trading of the Common Stock on the Principal Market will continue uninterrupted for the foreseeable future), (iii) on or prior to the 20th Trading Day prior to such Monthly
Redemption Date, the Corporation irrevocably notifies the Holder that it will issue Underlying Shares in lieu of cash; (iv) all liquidated damages and other amounts owing in respect of the
Preferred Stock shall have been paid or will, concurrently with the issuance of the Underlying Shares, be paid in cash; (v) there is a sufficient number of authorized but unissued and otherwise
unreserved shares of Common Stock for such issuance; (vi) such issuance would be permitted in full without violating the limitations set forth in Section 5(a)(ii) and (iii);
(vii) no Triggering Event has occurred and is continuing; and (viii) no public announcement of a pending or proposed Fundamental Transaction or Acquisition Transaction has occurred that
has not been consummated. The Holders may convert, pursuant to Section 5(a)(i), any shares of Preferred Stock subject to a Monthly Redemption at any time prior to the date that the Monthly
Redemption Amount and all amounts owing thereon are due and paid in full. The Corporation covenants and agrees that it will honor all Conversion Notices tendered up until such amounts are paid in
full. 

11

  

        (c)    Deferral of Monthly Redemption Amount.    If the Corporation elects not to pay a Monthly Redemption Amount in
cash or Underlying Shares pursuant to Section 6(b), then the dividend as to the shares of Preferred Stock subject to such Monthly Redemption shall thereafter be 12% per annum. The Corporation
shall notify the Holders at least 20 Trading Days' prior to any Monthly Redemption Date that it elects to increase the dividend on the applicable Monthly Redemption Amount hereunder. The Corporation
may pay in cash, upon 20 Trading Days' prior written notice to the Holders and subject to the conditions set forth in Section 6(a) to an Optional Redemption, any Monthly Redemption Amounts
subject to a higher dividend pursuant to this Section 6(c) (plus additional accrued but unpaid dividends thereon). Beginning on the 24th monthly anniversary of this Agreement and upon 20
Trading Days' notice to the Holders, the Corporation may elect to redeem any shares of Preferred Stock subject to this Section 6(c) on each Monthly Redemption Date pursuant to the terms and
conditions of Section 6(b) for an amount each month equal to the Monthly Redemption Amount. 

        (d)    Redemption Procedure. The payment of cash and/or issuance of Common Stock, as the case may be, pursuant to a Monthly
Redemption shall be made on the Monthly Redemption Date and 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
a Monthly Redemption or Optional Redemption shall not be paid by the Corporation by the respective 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 Monthly Redemption Amount or Optional Redemption Amount, as applicable, plus all amounts owing thereon is paid in full. In addition, if
any portion of the Monthly Redemption Amount or Optional Redemption Amount, as applicable, remains unpaid after such date, the Holders subject to such redemption may elect, by written notice to the
Corporation given at any time thereafter, to invalidate ab initio such redemption, notwithstanding anything herein contained to the contrary.
Notwithstanding anything to the contrary in this Section 6, the Corporation's determination to redeem in cash, shares of Common Stock or to elect to increase the dividend on the Preferred Stock
pursuant to Section 6(c) shall be applied ratably among the Holders based upon the number of shares of Preferred Stock initially purchased by each Holder, adjusted upward ratably in the event
all of the shares of Preferred Stock of any Holder are no longer outstanding 

        Section 7.    Redemption Upon Triggering Events.    

        (a)  Upon
the occurrence of a Triggering Event, each Holder shall (in addition to all other rights it may have hereunder or under applicable law) have the right, exercisable
at the sole option of such Holder, to require the Corporation to do, at the election of the Corporation (subject to the limitation below with respect to the Triggering Events set forth in Sections
7(b)(iii) and 7b)(xii)), any of the following: (i) redeem all or a portion of the Preferred Stock then held by such Holder for a redemption price, in cash, equal to the Triggering
Redemption Amount; (ii) issue to each Holder a number of shares of
Common Stock registered for resale equal to the Triggering Redemption Amount divided by 90% ("Triggering Event Conversion Price Percentage") of the
average of the 10 VWAPs prior to the date such payment is due hereunder; provided, however, if shares
registered for resale are unavailable (or only partly available) for such issuance, to the extent such shares are unavailable for such issuance the Corporation may issue shares of Common Stock not
then registered for resale and in such cases the Triggering Event Conversion Price Percentage shall be reduced to 70%; provided,  further, in the event such
shares not registered for immediate resale are subsequently registered for resale within 60 days of notice from the
Holder of the occurrence of the Triggering Event, the per share value of the Common Stock paid as a Triggering Redemption Amount shall equal 80% of the average of such 10 VWAPs and the Holder shall
promptly return a number of shares of Common Stock to the Corporation to the extent necessary to reflect such repricing; or (iii) increase the dividend on all of the outstanding Preferred 

12

 

Stock held by such Holder to equal 18% per annum thereafter. The Triggering Redemption Amount, if the Corporation elects clauses (i) or (ii) above, shall be due and payable within 10
Trading Days of the date on which the notice for the payment therefor is provided by a Holder (the "Triggering Redemption Payment Date").
Notwithstanding anything to the contrary herein, if the redemption right hereunder is exercised by the Holder in connection with the Triggering Events set forth in Sections 7(b)(iii) or
7(b)(xii) below, then such Holder may require the Corporation to pay the entire Triggering Redemption Amount in cash only. If the Corporation fails to pay the Triggering Redemption Amount
hereunder in full pursuant to this Section on the date such amount is due in accordance with this Section (whether in cash or shares of Common Stock), the Corporation will pay interest thereon at a
rate of 18% per annum (or the lesser amount permitted by applicable law), accruing daily from such date until the Triggering Redemption Amount, plus all such interest thereon, is paid in full. In
addition to the payment of the Triggering Redemption Amount, all accrued but unpaid liquidated damages shall be due and payable to the Holders on the Triggering Redemption Payment Date,  except that, if
the Corporation (x) has timely met all obligations to pay liquidated damages prior to the Triggering Redemption Date and
(y) delivers in full the cash and/or Common Stock required hereunder on or before the Triggering Redemption Date, then the Corporation shall not be required to pay any accrued but unpaid
liquidated damages in addition to the Triggering Redemption Amount and the Corporation's obligations with respect to such liquidated damages shall be deemed satisfied. For purposes of this Section, a
share of Preferred Stock is outstanding until such date as the Holder shall have received Underlying Shares upon a conversion (or attempted conversion) thereof that meets the requirements hereof or
has been paid the Triggering Redemption Amount plus all accrued but unpaid dividends and all accrued but unpaid liquidated damages in cash. The Holder may convert, pursuant to Section 5(a)(i),
any shares of Preferred Stock prior to the date the Triggering Redemption Amount (which shall be reduced accordingly to account for such conversions) is paid in full and the Holder's conversion rights
pursuant to Section 5(a)(i) shall continue uninterrupted after the dividend increases pursuant to clause (iii) above. Notwithstanding anything to the contrary in this
Section 7(a), the Corporation's determination as between clauses (i), (ii) and (iii) above shall be applied ratably among the Holders based upon the number of shares of Preferred
Stock initially purchased by each Holder, adjusted upward ratably in the event all of the shares of Preferred Stock of any Holder are no longer outstanding. 

        (b)  "Triggering Event" means any one or more 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)  the
failure of an Underlying Shares Registration Statement to be declared effective by the Commission on or prior to the 180th day after the Original Issue Date; 

        (ii)  if,
during the Effectiveness Period, the effectiveness of the Underlying Shares Registration Statement lapses for any reason for more than an aggregate of 60 calendar
days (which need not be consecutive days) during any 12 month period, or the Holder shall not be permitted to resell Registrable Securities under the Underlying Shares Registration Statement
for more than an aggregate of 60 calendar days (which need not be consecutive days) during any 12 month period; 

        (iii)  the
Corporation shall fail to use commercially reasonable efforts to deliver certificates representing Underlying Shares issuable upon a conversion hereunder that
comply with the provisions hereof prior to the 4th day after such shares are required to be delivered hereunder (commercially reasonable efforts shall include, but not be limited to, issuing, within
one Trading Day of notice of a conversion, instructions to the Company's transfer agent to issue the shares subject to such conversion and repeated follow-up with the transfer agent that 

13

 

such instructions are being diligently processed), or the Corporation shall provide written notice to any Holder, including by way of public announcement, at any time, of its intention not to comply
with requests for conversion of any shares of Preferred Stock in accordance with the terms hereof; 

        (iv)  one
of the Events (as defined in the Registration Rights Agreement) described in subsections (i), (ii) or (iii) of Section 2(c) of the Registration
Rights Agreement shall not have been cured to the satisfaction of the Holders prior to the expiration of 30 days from the Event Date (as defined in the Registration Rights Agreement) relating
thereto (other than an Event resulting from a failure of an Underlying Shares Registration Statement to be declared effective by the Commission on or prior to the 180th day after the Original Issue
Date, which shall be covered by Section 7(b)(i)); 

        (v)  the
Corporation shall fail for any reason to pay in full the amount of cash due pursuant to a Buy-In within 7 days after notice therefor is delivered
hereunder or shall fail to pay all amounts owed on account of an Event within seven days of the date due; 

        (vi)  the
Corporation shall fail to have available a sufficient number of authorized and unreserved shares of Common Stock to issue to such Holder upon a conversion
hereunder; 

      (vii)  the
Corporation shall fail in any material respect to observe or perform any other material covenant, agreement or warranty contained in, or otherwise commit any
material breach of the Transaction Documents, and such failure or breach shall not, if subject to the possibility of a cure by the Corporation, have been remedied within 30 calendar days after the
date on which written notice of such failure or breach shall have been given; 

      (viii)  any
officer or director shall breach the agreements delivered to the initial Holders at the Closing pursuant to Section 2.2(a)(vi) of the Purchase
Agreement; 

        (ix)  the
Corporation shall be a party to or shall be the subject of any Fundamental Transaction or shall redeem more than a de
minimis number of Junior Securities; 

        (x)  there
shall have occurred a Bankruptcy Event; 

        (xi)  the
Common Stock shall fail to be listed or quoted for trading on a Principal Market for more than 5 Trading Days, which need not be consecutive Trading Days; or 

      (xii)  the
failure of the Corporation to use its commercially reasonable efforts to submit an application to list the Common Stock on an alternative Principal Market within 7
Trading Days of the occurrence of a Triggering Event pursuant to clause (xi) of this Section 7(b) or the failure of the Corporation to use its commercially reasonable efforts to obtain
such listing after the application is filed with an alternative Principal Market. 

        Section 8.    Definitions.    For the purposes hereof, the following terms shall have the following meanings: 

        "Acquisition Transaction" mean any of the following: (i) a merger, consolidation, reverse merger or similar transaction or series
of related transactions in which the stockholders of the Corporation immediately prior to such transaction or series of related transactions do not hold immediately following such transaction or
series of related transactions over 50% of the voting securities of the surviving entity, (ii) the sale, lease, license or other transfer of all or substantially all of the assets of the
Corporation or (iii) acquisition by any Person or "group" (as defined in Rule 13d-5(b)(1) promulgated under the Exchange Act) of over 50% of the voting securities of the
Corporation pursuant to a publicly announced transaction announcing the intention of the acquiring parties to ultimately acquire not less than 90% of the Corporation's Common Stock. 

14

 

        "Bankruptcy Event" means any of the following events: (a) the Corporation or any Significant Subsidiary (as such term is defined in
Rule 1.02(s) of Regulation S-X) thereof commences a case or other proceeding under any bankruptcy, reorganization, arrangement, adjustment of debt, relief of debtors,
dissolution, insolvency or liquidation or similar law of any jurisdiction relating to the Corporation or any Significant Subsidiary thereof; (b) there is commenced against the Corporation or
any Significant
Subsidiary thereof any such case or proceeding that is not dismissed within 60 days after commencement; (c) the Corporation or any Significant Subsidiary thereof is adjudicated insolvent
or bankrupt or any order of relief or other order approving any such case or proceeding is entered; (d) the Corporation or any Significant Subsidiary thereof suffers any appointment of any
custodian or the like for it or any substantial part of its property that is not discharged or stayed within 60 days; (e) the Corporation or any Significant Subsidiary thereof makes a
general assignment for the benefit of creditors; (f) the Corporation or any Significant Subsidiary thereof calls a meeting of its creditors with a view to arranging a composition, adjustment or
restructuring of its debts; or (g) the Corporation or any Significant Subsidiary thereof, by any act or failure to act, expressly indicates its consent to, approval of or acquiescence in any of
the foregoing or takes any corporate or other action for the purpose of effecting any of the foregoing. 

        "Closing" means closing of the purchase and sale of the Preferred Stock. 

        "Commission" means the Securities and Exchange Commission. 

        "Common Stock" means the Corporation's common stock, par value $.001 per share, and stock of any other class into which such shares may
hereafter have been reclassified or changed. 

        "Conversion Amount" means the sum of the Stated Value at issue. 

        "Conversion Date" shall have the meaning set forth in Section 5(b)(i). 

        "Conversion Ratio" means, at any time, a fraction, the numerator of which is the Conversion Amount and the denominator of which is the Set
Price at such time. 

        "Effective Date" means the date that the Underlying Shares Registration Statement is declared effective by the Commission. 

        "Engagement Letter" shall have the meaning set forth in Section 5(a)(iii). 

        "Exchange Act" means the Securities Exchange Act of 1934, as amended. 

        "Forced Conversion" shall have the meaning set forth in Section 5(a)(v). 

        "Forced Conversion Date" shall have the meaning set forth in Section 5(a)(v). 

        "Fundamental Transaction" means the occurrence of any of the following: (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 Corporation, by contract or otherwise) of in excess of 40% of the voting securities of the Corporation, (ii) a replacement at one time or over time of more than one-half of
the members of the Corporation'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), (iii) any sale of more than one-half of the assets (excluding licenses in the ordinary course of business) of the Corporation (on an as valued basis) in one or a series of
related transactions or (iv) the execution by the Corporation of an agreement to which the Corporation is a party or by which it is bound, providing for any of the events set 

15

 

forth above in (i), (ii) or (iii); provided, however, such events shall not be deemed a
Fundamental Transaction if they are done in connection with a pending Acquisition Transaction. 

        "Holder" shall have the meaning given such term in Section 1 hereof. 

        "Junior Securities" means the Common Stock and all other equity or equity equivalent securities of the Corporation other than those
securities that are outstanding on the Original Issue Date and which are explicitly senior in rights or liquidation preference to the Preferred Stock. 

        "Monthly Conversion Price" shall have the meaning set forth in Section 6(a). 

        "Monthly Redemption" shall mean the redemption of the Preferred Stock pursuant to Section 6(b). 

        "Monthly Redemption Amount" shall mean, as to a Monthly Redemption, in the aggregate, $333,333 or such lesser amount of Stated Value then
held by all of the Holders on such Monthly Redemption Date, plus any accrued but unpaid dividends. 

        "Monthly Redemption Date" means each of the 18 consecutive monthly anniversary dates of the Original Issue Date (unless extended pursuant
to Section 6(c)), commencing on the sixth month anniversary of the Original Issue Date. 

        "Optional Redemption Amount" shall mean the sum of (i) 110% of the Stated Value then outstanding, (ii) accrued but unpaid
dividends and (iii) all liquidated damages and other amounts due in respect of the Preferred Stock. 

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

        "Original Issue Date" shall mean the date of the first issuance of any shares of the Preferred Stock regardless of the number of transfers
of any particular shares of Preferred Stock and regardless of the number of certificates which may be issued to evidence such Preferred Stock. 

        "Person" means a corporation, an association, a partnership, an organization, a business, an individual, a government or political
subdivision thereof or a governmental agency. 

        "Principal Market" shall initially mean the New York Stock Exchange and shall also include the NASDAQ Small-Cap Market, the
American Stock Exchange or the NASDAQ National Market, whichever is at the time the principal trading exchange or market for the Common Stock, based upon share volume. 

        "Purchase Agreement" means the Securities Purchase Agreement, dated as of the Original Issue Date, to which the Corporation and the
original Holders are parties, as amended, modified or supplemented from time to time in accordance with its terms. 

        "Registration Rights Agreement" means the Registration Rights Agreement, dated as of the Original Issue Date, to which the Corporation and
the original Holders are parties, as amended, modified or supplemented from time to time in accordance with its terms. 

        "Securities Act" means the Securities Act of 1933, as amended. 

        "Set Price" shall have the meaning set forth in Section 5(c)(i). 

        "Trading Day" shall mean any day during which the Principal Market shall be open for business. 

        "Transaction Documents" shall mean the Purchase Agreement and all agreement entered into in connection therewith, including the
Registration Rights Agreement. 

        "Triggering Event" shall have the meaning set forth in Section 7(b). 

16

 

        "Triggering Redemption Amount" for each share of Preferred Stock means the sum of (i) the greater of (A) 120% of the Stated
Value and (B) the product of (a) the VWAP on the Trading Day immediately preceding the date of the Triggering Event and (b) the Conversion Ratio (without regard to the limitation
set forth in Sections 5(a)(ii) and (iii)) as calculated on the date of the Triggering Event and (ii) all accrued but unpaid dividends thereon. 

        "Underlying Shares" means, collectively, the shares of Common Stock into which the shares of Preferred Stock are convertible in accordance
with the terms hereof. 

        "Underlying Shares Registration Statement" means a registration statement that meets the requirements of the Registration Rights Agreement
and registers the resale of all Underlying Shares by the Holder, who shall be named as a "selling stockholder" thereunder, all as provided in the Registration Rights Agreement. 

        "VWAP" means, for any date, the price determined by the first of the following clauses that applies: (a) if the Common Stock is
then listed or quoted on a Principal Market, the daily volume weighted average price of the Common Stock for such date (or the nearest preceding date) on the Principal Market on which the Common Stock
is then listed or quoted as reported by Bloomberg Financial L.P. (based on a trading day from 9:30 a.m. Eastern Time to 4:02 p.m. Eastern Time); (b) if the Common Stock is not
then listed or quoted on a Principal Market and if prices for the Common Stock are then quoted on the OTC Bulletin Board, the volume weighted average price of the Common Stock for such date (or the
nearest preceding date) on the OTC Bulletin Board; (c) if the Common Stock is not then listed or quoted on the OTC Bulletin Board and if prices for the Common Stock are then reported in the
"Pink Sheets" published by the National Quotation Bureau Incorporated (or a similar organization or agency succeeding to its functions of reporting prices), the most recent bid price per share of the
Common Stock so reported; or (d) in all other cases, the fair market value of a share of Common Stock as determined by an independent appraiser selected in good faith by the Purchasers and
reasonably acceptable to the Corporation. 

        Section 9.    Acquisition Transactions.    In case of any Acquisition Transaction, the Corporation shall have
the right to cause each Holder to convert each outstanding share of Preferred Stock effective immediately prior to such Acquisition Transaction based on the lesser of the Set Price and the then
Monthly Conversion Price, into shares of Common Stock; provided, however, that if, pursuant to such Acquisition
Transaction the Corporation is being acquired, directly or indirectly, by another corporation with a market capitalization, as determined by multiplying the average of the closing bid prices of the
common stock of the acquiring company for the 10 Trading Days prior to the public announcement of such transaction and the issued and outstanding shares of common stock of the acquiring company at
such time, of less than $100,000,000, then in lieu of such conversion, by written notice to the Corporation deemed delivered within 20 days after a Holder's receipt of the definitive proxy or
information statement relating to such Acquisition Transaction (a "Survival Notice"), such Holder my require the surviving entity to convert such
Holder's Preferred Stock into shares of convertible preferred stock of such acquiring company with aggregate stated value equal to the Conversion Amount of Preferred Stock held by such Holder
immediately prior to such Acquisition Transaction, plus all other amounts owing thereon, which newly issued shares of preferred stock shall have identical terms to the terms of the Preferred Stock and
shall be entitled to all of the rights and privileges of a Holder set forth herein and the agreements pursuant to which the Preferred Stock was issued. Failure of any Holder to timely deliver a
Survival Notice shall be deemed an election by such Holder to convert such Holder's shares of Preferred Stock pursuant to this Section 9. To the extent the immediately preceding provision
applies to any Acquisition Transaction, this provision shall similarly apply to successive Acquisition Transactions. 

17

   
        Section 10.    Miscellaneous. 

        (a)  If
(a) the Corporation shall declare a dividend (or any other distribution) on the Common Stock, (b) the Corporation shall declare a special nonrecurring
cash dividend on or a redemption of the Common Stock, (c) the Corporation shall authorize the granting to all holders of 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 Corporation shall be required in connection with any Fundamental Transaction or Acquisition
Transaction, or (e) the Corporation shall authorize the voluntary or involuntary dissolution, liquidation or winding up of the affairs of the Corporation; then the Corporation shall
file a press release or Current Report on Form 8-K to disclose such occurrence and notify the Holders at their last addresses as they shall appear upon the stock books of the
Corporation, 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 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 any such Fundamental Transaction or Acquisition Transaction is expected to become effective or close,
and the date as of which it is expected that holders of Common Stock of record shall be entitled to exchange their Common Stock for securities, cash or other property deliverable upon any such
Fundamental Transaction or Acquisition Transaction. Holders are entitled to convert the Conversion Amount of Preferred Stock during the 20-day period commencing the date of such notice to
the effective date of the event triggering such notice. 

        (b)  Subject
to the limitations set forth in Section 5(a)(iii), the Corporation 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 Preferred Stock, each as herein provided, free from preemptive rights or any other actual contingent purchase
rights of persons other than the Holders, not less than such number of shares of Common Stock as shall be issuable (taking into account the provisions of Section 5(a) and Section 5(c))
upon the conversion of all outstanding shares of Preferred Stock. The Corporation covenants that all shares of Common Stock that shall be so issuable shall, upon issue, be duly and validly authorized,
issued and fully paid and nonassessable. 

        (c)  Upon
a conversion hereunder the Corporation shall not be required to issue stock certificates representing fractions of shares of 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 any fraction of an Underlying Share would, except for the provisions of this Section, be
issuable upon a conversion hereunder, the Corporation shall pay an amount in cash equal to the average of the 20 VWAPs immediately prior to the applicable conversion multiplied by such fraction. 

        (d)  The
issuance of certificates for Common Stock on conversion of Preferred Stock shall be made without charge to the Holders thereof for any documentary stamp or similar
taxes that may be payable in respect of the issue or delivery of such certificate, provided that the Corporation 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 shares of Preferred Stock so converted. 

        (e)  To
effect conversions or redemptions, as the case may be, of shares of Preferred Stock, a Holder shall not be required to surrender the certificate(s) representing such
shares of Preferred Stock to the Corporation unless all of the shares of Preferred Stock represented thereby are so converted, in which case the Holder shall deliver the certificate representing such
share of Preferred Stock promptly following the Conversion Date at issue. Shares of Preferred Stock 

18

 

converted into Common Stock or redeemed in accordance with the terms hereof shall be canceled and may not be reissued. 

        (f).  Any
and all notices or other communications or deliveries to be provided by the Holders of the Preferred Stock hereunder, including, without limitation, any Conversion
Notice, shall be in writing and delivered personally, by facsimile or sent by a nationally recognized overnight courier service, addressed to the attention of the Chief Financial Officer of the
Corporation addressed to 6505 El Camino Real, Carlsbad, California 92009, Attn: Preston Romm Fax Number: (760) 931-5527 or to such
other address or facsimile number as shall be specified in writing by the Corporation for such purpose. Any and all notices or other communications or deliveries to be provided by the Corporation
hereunder shall be in writing and delivered personally, by facsimile or 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 Corporation, which address shall initially be the address of such Holder set forth on the signature pages of the Purchase Agreement, or such other address
as the Corporation or a Holder may designate by ten days advance written notice to the other parties hereto. 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
6:30 p.m. (New York City time) (with confirmation of transmission), (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 6:30 p.m. (New York City time) on any date and earlier than 11:59 p.m. (New York City time) on such date (with
confirmation of transmission), (iii) five days after having been sent by registered or certified mail, return receipt requested, postage prepaid, (iv) one day after deposit with a
nationally recognized overnight courier service, specifying next day delivery, with written verification of service, or (v) upon actual receipt by the party to whom such notice is required to
be given. 

        (g)  For
purposes hereof, a share of Preferred Stock is outstanding until such date as the Holder shall have received the Underlying Shares or redemption amount (as the case
may be) issuable or payable to it in accordance with this Certificate of Designations. 

        RESOLVED,
FURTHER, that the Chairman, the president or any vice-president, and the secretary or any assistant secretary, of the Corporation be and they hereby are authorized
and directed to prepare and file a Certificate of Designation of Preferences, Rights and Limitations in accordance with the foregoing resolution and the provisions of Delaware law. 

        IN
WITNESS WHEREOF, the undersigned have executed this Certificate this 18th day of December, 2002. 

	/s/  JAMES L. LAMBERT      
 James L. Lambert , President	 	/s/  PRESTON ROMM      
 Preston Romm, Secretary

19

 
ANNEX A  

        NOTICE OF CONVERSION

(To be Executed by the Registered Holder in order to Convert shares of Preferred Stock) 

The
undersigned hereby elects to convert the number of shares of 7% Series A Convertible Redeemable Preferred Stock indicated below, into shares of common stock, par value $0.001 per share (the
"Common Stock"), of Dot Hill Systems Corp., a Delaware corporation (the "Corporation"), 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 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 Corporation in accordance therewith. No fee will be charged to the Holder for any conversion, except for such
transfer taxes, if any. 

Conversion
calculations: 

	 	 	Date to Effect Conversion	 	 
	

 	
 	

	
 	

 
	 	 	Number of shares of Preferred Stock owned prior to Conversion
	

 	
 	

	
 	

 
	 	 	Number of shares of Preferred Stock to be Converted
	

 	
 	

	
 	

 
	 	 	Stated Value of shares of Preferred Stock to be Converted
	

 	
 	

	
 	

 
	 	 	Number of shares of Common Stock to be Issued
	

 	
 	

	
 	

 
	 	 	Applicable Set Price
	

 	
 	

	
 	

 
	 	 	Number of shares of Preferred Stock subsequent to Conversion
	

 	
 	

	
 	

 

	 	 	[HOLDER]
	

 	
 	

By:	

 
	 	 	 	
 Name:

Title:

20

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EXHIBIT 4.1QuickLinks
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Exhibit 4.2    
  

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. 

STOCK PURCHASE WARRANT  

        To Purchase                        Shares of Common
Stock of

  Dot Hill Systems Corp.  

        THIS STOCK PURCHASE 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 December    , 2002 (the "Initial Exercise Date") and on or prior
to the earlier of (i) the close of business on the fifth anniversary of the Initial Exercise Date and (ii) immediately prior to the consummation of an Acquisition Transaction (as defined
in the Certificate of Designation) (the "Termination Date") but not thereafter, to subscribe for and purchase from Dot Hill Systems Corp., a corporation
incorporated in the State of Delaware (the "Company"), up
to                        shares (the "Warrant
Shares") of Common Stock, par value $0.001 per share, of the Company (the "Common Stock"). The purchase price of one share of
Common Stock (the "Exercise Price") under this Warrant shall be $3.11, subject to adjustment hereunder.
The Exercise Price and the number of
Warrant Shares for which this Warrant is exercisable shall be subject to adjustment as provided herein. Capitalized terms used and not otherwise defined herein shall have the
meanings set forth in that certain Securities Purchase Agreement (the "Purchase Agreement"), dated December 18, 2002,
between the Company and the investors signatory thereto. 

        This
Warrant is issued to Holder pursuant to and in full satisfaction of the conditions and of the Company's obligations to Holder pursuant to Sections 2.1 and 2.2(a)(iii) of the
Purchase Agreement. 

        1.    Title to Warrant.    Prior to the Termination Date and subject to compliance with applicable laws and to the
conditions set forth in Section 7(d) hereof and to the provisions of Section 4.1 of the Purchase Agreement, 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. 

        2.    Authorization of 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 issuance, 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). 

1

 

        3.    Exercise
of Warrant. 

        (a)  Except
as provided in Section 4 herein, exercise of the purchase rights represented by this Warrant may be made at any time or times on or after the Initial
Exercise Date and on or before the Termination Date by the surrender of this Warrant and the Notice of Exercise Form annexed hereto duly executed, at the office of the Company (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) and upon payment of the Exercise Price of
the shares thereby purchased by wire transfer or cashier's check drawn on a United States bank or by means of a cashless exercise pursuant to Section 3(d), the Holder shall be entitled to
receive a certificate for the number of Warrant Shares so purchased. Certificates for shares purchased hereunder shall be delivered to the Holder within three (3) Trading Days after the date on
which this Warrant shall have been exercised as aforesaid. This Warrant shall be deemed to have been exercised and such certificate or certificates 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 5 prior to the issuance of such shares, have been paid. If the Company fails to
deliver to the Holder a certificate or certificates representing the Warrant Shares pursuant to this Section 3(a) by the third Trading Day after the date of exercise, then the Holder will have
the right to rescind such exercise. In addition to any other rights available to the Holder, if
the Company fails to deliver to the Holder a certificate or certificates representing the Warrant Shares pursuant to an exercise by the fifth Trading Day after the date of exercise, and if after such
fifth Trading Day the Holder purchases (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 Corporation.
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. 

        (b)  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. 

2

 

        (c)  Notwithstanding
anything herein to the contrary, in no event shall the Holder be permitted to exercise this Warrant for Warrant Shares to the extent that (i) the
number of shares of Common Stock beneficially owned by such Holder, together with any affiliate thereof (other than Warrant Shares issuable upon exercise of this Warrant) plus (ii) the number
of Warrant Shares issuable upon exercise of this Warrant, would be equal to or exceed 9.9999% of the number of shares of Common Stock then issued and outstanding, including shares issuable upon
exercise of this Warrant held by such Holder after application of this Section 3(c). As used herein, beneficial ownership shall be determined in accordance with Section 13(d) of the
Exchange Act and the rules promulgated thereunder. To the extent that the limitation contained in this Section 3(c) applies, the determination of whether this Warrant is exercisable (in
relation to other securities owned by the Holder) and of which a portion of this Warrant is exercisable shall be in the sole discretion of such Holder, and the submission of a Notice of Exercise shall
be deemed to be such 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. Nothing contained herein shall be deemed to
restrict the right of a Holder to exercise this Warrant into Warrant Shares at such time as such exercise will not violate the provisions of this Section 3(c). The provisions of this
Section 3(c) may be waived by
the Holder upon, at the election of the Holder, not less than 61 days' prior notice to the Company, and the provisions of this Section 3(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 exercise of this Warrant in violation of this Section 3(c) but otherwise in accordance with
this Warrant shall affect the status of the Warrant Shares as validly issued, fully-paid and nonassessable. 

        (d)  If
at any time after one year from the date of issuance of this Warrant there is no effective Registration registering the resale of the Warrant Shares by the Holder,
this Warrant may also be exercised at such time by means of a "cashless exercise" in which the Holder shall be entitled to receive a certificate for the number of Warrant Shares equal to the quotient
obtained by dividing [(A-B) (X)] by (A), where: 

	(A)	=	the VWAP on the Trading Day preceding the date of such election;
	

(B)	

=	

the Exercise Price of the Warrants, as adjusted; and
	

(X)	

=	

the number of Warrant Shares issuable upon exercise of the Warrants in accordance with the terms of this Warrant.

        4.    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. 

        5.    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. 

        6.    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. 

3

 

        7.    Transfer, Division and Combination.

        (a)  Subject
to compliance with any applicable securities laws and the conditions set forth in Sections 1 and 7(d) hereof and to the provisions of Section 4.1 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)  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 7(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. 

        (c)  The
Company shall prepare, issue and deliver at its own expense (other than transfer taxes) the new Warrant or Warrants under this Section 7. 

        (d)  The
Company agrees to maintain, at its aforesaid office, books for the registration and the registration of transfer of the Warrants. 

        (e)  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) promulgated under the Securities Act. 

        8.    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. 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. 

        9.    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. 

4

 

        10.    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. 

        11.    Adjustments of Exercise Price and Number of Warrant Shares. 

        (a)  Stock Splits, etc.    The number and kind of securities purchasable upon the exercise of this Warrant and the
Exercise Price shall be subject to adjustment from time to time upon the happening of any of the following. In case the Company shall (i) pay a dividend in shares of Common Stock or make a
distribution in shares of Common Stock to holders of its outstanding Common Stock, (ii) subdivide its outstanding shares of Common Stock into a greater number of shares, (iii) combine
its outstanding shares of Common Stock into a smaller number of shares of Common Stock, or (iv) issue any shares of its capital stock in a reclassification of the Common Stock, then the number
of Warrant Shares purchasable upon exercise of this Warrant immediately prior thereto shall be adjusted so that the Holder shall be entitled to receive the kind and number of Warrant Shares or other
securities of the Company which it would have owned or have been entitled to receive had such Warrant been exercised in advance thereof. Upon each such adjustment of the kind and number of Warrant
Shares or other securities of the Company which are purchasable hereunder, the Holder shall thereafter be entitled to purchase the number of Warrant Shares or other securities resulting from such
adjustment at an Exercise Price per Warrant Share or other security obtained by multiplying the Exercise Price in effect immediately prior to such adjustment by the number of Warrant Shares
purchasable pursuant hereto immediately prior to such adjustment and dividing by the number of Warrant Shares or other securities
of the Company resulting from such adjustment. An adjustment made pursuant to this paragraph shall become effective immediately after the effective date of such event retroactive to the record date,
if any, for such event. 

        (b)    Anti-Dilution Provisions.    During the Exercise Period, the Exercise Price and the number of
Warrant Shares issuable hereunder and for which this Warrant is then exercisable pursuant to the terms hereof shall be subject to adjustment from time to time as provided in this Section 11(b).
In the event that any adjustment of the Exercise Price as required herein results in a fraction of a cent, such Exercise Price shall be rounded up or down to the nearest cent. 

	(i)
	Adjustment of Exercise Price.    Except as set forth in Section 11(b(ii)(E) below, if
and whenever the Company issues or sells, or in accordance with Section 11(b) hereof is deemed to have issued or sold, any shares of Common Stock for a consideration per share of less than the
Exercise Price in effect immediately prior to such sale or issuance or for no consideration (such lower price, the "Base Share Price" and such issuances
collectively, a "Dilutive Issuance"), then, (A) if such Dilutive Issuance occurred prior to the later of the (1) 18 months after
the Initial Exercise Date and (2) the date the Preferred Stock is no longer outstanding ("Dilution Trigger Date"), the Exercise Price shall be
reduced to equal the Base Share Price, and (B) if such Dilutive Issuance occurred after the Dilution Trigger Date, the Exercise Price shall be multiplied by a fraction of which the numerator
shall be the number of shares of Common Stock Outstanding immediately prior to the Dilutive Issuance plus the number of shares of Common Stock which the aggregate offering price for such Dilutive
Issuance (assuming receipt by the Corporation in full of all consideration payable upon exercise of such rights, options or warrants) would purchase at the Exercise Price, and the denominator of which
shall be the sum of the number of shares of Common Stock Outstanding immediately prior to the Dilutive Issuance plus the number of shares of Common Stock so issued or issuable in connection with the
Dilutive Issuance. Such adjustment shall be made whenever such shares of Common Stock or Capital Share Equivalents are issued. For purposes of this Section 11(b), the number of shares of Common
Stock deemed to be outstanding as of a 

5

 

given
date shall be the number of shares of Common Stock (excluding treasury shares, if any) outstanding. 

	(ii)
	Effect on Exercise Price of Certain Events.    For purposes of determining the adjusted
Exercise Price under Section 11(b) hereof, the following will be applicable: 

        (A)    Issuance of Rights or Options.    If the Company in any manner issues or grants any warrants, rights or
options, whether or not immediately exercisable, to subscribe for or to purchase Common Stock or other securities exercisable, convertible into or exchangeable for Common Stock
("Convertible Securities") (such warrants, rights and options to purchase Common Stock or Convertible Securities are hereinafter referred to as
"Options") and the price per share for which Common Stock is issuable upon the exercise of such Options is less than the Exercise Price
("Below Base Price Options"), then the maximum total number of shares of Common Stock issuable upon the exercise of all such Below Base Price Options
(assuming full exercise, conversion or exchange of Convertible Securities, if applicable) will, as of the date of the issuance or grant of such Below Base Price Options, be deemed to be outstanding
and to have been issued and sold by the Company for such price per share and the
maximum consideration payable to the Company upon such exercise (assuming full exercise, conversion or exchange of Convertible Securities, if applicable) will be deemed to have been received by the
Company. For purposes of the preceding sentence, the "price per share for which Common Stock is issuable upon the exercise of such Below Base Price Options" is determined by dividing (i) the
total amount, if any, received or receivable by the Company as consideration for the issuance or granting of all such Below Base Price Options, plus the minimum aggregate amount of additional
consideration, if any, payable to the Company upon the exercise of all such Below Base Price Options, plus, in the case of Convertible Securities issuable upon the exercise of such Below Base Price
Options, the minimum aggregate amount of additional consideration payable upon the exercise, conversion or exchange thereof at the time such Convertible Securities first become exercisable,
convertible or exchangeable, by (ii) the maximum total number of shares of Common Stock issuable upon the exercise of all such Below Base Price Options (assuming full conversion of Convertible
Securities, if applicable). No further adjustment to the Exercise Price will be made upon the actual issuance of such Common Stock upon the exercise of such Below Base Price Options or upon the
exercise, conversion or exchange of Convertible Securities issuable upon exercise of such Below Base Price Options. 

        (B)  Issuance of Convertible Securities.    If the Company in any manner issues or sells any Convertible Securities,
whether or not immediately convertible (other than where the same are issuable upon the exercise of Options) and the price per share for which Common Stock is issuable upon such exercise, conversion
or exchange is less than the Exercise Price, then the maximum total number of shares of Common Stock issuable upon the exercise, conversion or exchange of all such Convertible Securities will, as of
the date of the issuance of such Convertible Securities, be deemed to be outstanding and to have been issued and sold by the Company for such price per share and the maximum consideration payable to
the Company upon such exercise (assuming full exercise, conversion or exchange of Convertible Securities, if applicable) will be deemed to have been received by the Company. For the purposes of the
preceding sentence, the "price per share for which Common Stock is issuable upon such exercise, conversion or exchange" is determined by dividing (i) the total amount, if any, received or
receivable by the Company as consideration for the issuance or sale of all such Convertible Securities, plus the minimum aggregate amount of additional consideration, if any, payable to the 

6

 

Company upon the exercise, conversion or exchange thereof at the time such Convertible Securities first become exercisable, convertible or exchangeable, by (ii) the maximum total number of
shares of Common Stock issuable upon the exercise, conversion or exchange of all such Convertible Securities. No further adjustment to the Exercise Price will be made upon the actual issuance of such
Common Stock upon exercise, conversion or exchange of such Convertible Securities. 

        (C)  Change in Option Price or Conversion Rate.    If there is a change at any time in (i) the amount of
additional consideration payable to the Company upon the exercise of any Options; (ii) the amount of additional consideration, if any, payable to the Company upon the exercise, conversion or
exchange of any Convertible Securities; or (iii) the rate at which any Convertible Securities are convertible into or exchangeable for Common Stock (in each such case, other than under or by
reason of provisions designed to protect against dilution), the Exercise Price in effect at the time of such change will be readjusted to the Exercise Price which would have been in effect at such
time had such Options or Convertible Securities still outstanding provided for such changed additional consideration or changed conversion rate, as the case may be, at the time initially granted,
issued or sold. 

        (D)  Calculation of Consideration Received.    If any Common Stock, Options or Convertible Securities are issued,
granted or sold for cash, the consideration received therefor for purposes of this Warrant will be the amount received by the Company therefor, before deduction of reasonable commissions, underwriting
discounts or allowances or other reasonable expenses paid or incurred by the Company in connection with such issuance, grant or sale. In case any Common Stock, Options or Convertible Securities are
issued or sold for a consideration part or all of which shall be other than cash, the amount of the consideration other than cash received by the Company will be the fair market value of such
consideration, except where such consideration consists of securities, in which case the amount of consideration received by the Company will be the VWAP thereof as of the date of receipt. In case any
Common Stock, Options or Convertible Securities are issued in connection with any merger or consolidation in which the Company is the surviving corporation, the amount of consideration therefor will
be deemed to be the fair market value of such portion of the net assets and business of the non-surviving corporation as is attributable to such Common Stock, Options or Convertible
Securities, as the case may be. The Company shall calculate, using standard commercial valuation methods appropriate for valuing such assets, the fair market value of any consideration other than cash
or securities; provided, however, that if the holder hereof does not agree to such fair market value calculation within three business days after receipt thereof from the Company, then such fair
market value will be determined in good faith by an investment banker or other appropriate expert of national reputation selected by the Company and reasonably acceptable to the holder hereof, with
the costs of such appraisal to be borne by the Company. 

        (E)  No
adjustment to the Exercise Price will be made (i) upon the exercise of any warrants, options or convertible securities issued and outstanding on the Closing
Date; (ii) upon the grant or exercise of any stock or options which may hereafter be granted to or exercised by any employee, director or consultant under (a) the 2000
Non-Employee Directors' Stock Option Plan, (b) the 2000 Amended and Restated Employee Stock Purchase Plan, or (c) the 2000 Amended and Restated Equity Incentive Plan, all as
may be amended from time to time; (iii) upon the issuance of any shares of Preferred Stock or the issuance or exercise of any Warrants issued or issuable in accordance with the terms of the
Purchase Agreement or that certain Engagement Letter dated November 7, 2002 between Roth Capital Partners, LLC and the Corporation or that certain Omicron Partners Investment Consent Agreement
with Sun Microsystems, Inc. dated as of December 17, 2002; (iv) upon conversion of the Preferred Stock; (v) upon the issuance of securities in connection with a merger,
consolidation, acquisition, strategic transaction, licensing arrangement, business partnership or joint venture approved by the Board of Directors; or (vi) upon the issuance of securities
pursuant to any equipment loan or leasing arrangement, real property leasing arrangement, commercial credit arrangement or debt financing from a bank or similar financial institution approved by the
Board of Directors. 

7

  

	(iii)
	Minimum Adjustment of Exercise Price. No adjustment of the Exercise Price shall be made in an amount of
less than 1% of the Exercise Price in effect at the time such adjustment is otherwise required to be made, but any such lesser adjustment shall be carried forward and shall be made at the time and
together with the next subsequent adjustment which, together with any adjustments so carried forward, shall amount to not less than 1% of such Exercise Price. 

        12.    Reorganization, Reclassification, Consolidation or Disposition of Assets.    In case the Company shall
reorganize its capital, reclassify its capital stock or consolidate (or where there is a change in or distribution with respect to the Common Stock of the Company), or sell, transfer or otherwise
dispose of all or substantially all its property, assets or business to another corporation and, pursuant to the terms of such reorganization, reclassification, merger, consolidation or disposition of
assets, any cash, shares of stock or other securities or property of any nature whatsoever (including warrants or other subscription or purchase rights) ("Other
Property"), are to be received by or distributed to the holders of Common Stock of the Company, then the Holder shall have the right thereafter to receive, at the option of the
Holder, upon exercise of this Warrant, the number of shares of Common Stock of the Company and Other Property receivable upon or as a result of such reorganization, reclassification, 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. The foregoing provisions of this Section 12
shall similarly apply to successive reorganizations, reclassifications, consolidations or disposition of assets. 

        13.    [RESERVED] 

        14.    Notice of Adjustment.    Whenever the number of Warrant Shares or number or kind of securities or other
property purchasable upon the exercise of this Warrant or the Exercise Price is adjusted, as herein provided, the Company shall give notice thereof to the Holder, which notice shall state the number
of Warrant Shares (and other securities or property) purchasable upon the exercise of this Warrant and the Exercise Price of such Warrant Shares (and other securities or property) after such
adjustment, setting forth a brief statement of the facts requiring such adjustment and setting forth the computation by which such adjustment was made. 

        15.    Notice of Corporate Action.    If at any time: 

        (a)  the
Company shall take a record of the holders of its Common Stock for the purpose of entitling them to receive a dividend or other distribution, or any right to
subscribe for or purchase any evidences of its indebtedness, any shares of stock of any class or any other securities or property, or to receive any other right, or 

        (b)  there
shall be any capital reorganization of the Company, any reclassification or recapitalization of the capital stock of the Company or any consolidation or merger of
the Company with, or any sale, transfer or other disposition of all or substantially all the property, assets or business of the Company to, another corporation or, 

        (c)  there
shall be a voluntary or involuntary dissolution, liquidation or winding up of the Company; 

then,
in any one or more of such cases, the Company shall give to Holder (i) at least 20 days' prior written notice of the date on which a record date shall be selected for such
dividend, distribution or right or for determining rights to vote in respect of any such reorganization, reclassification, merger, consolidation, sale, transfer, disposition, liquidation or winding
up, and (ii) in the case of any such reorganization, reclassification, merger, consolidation, sale, transfer, disposition, dissolution, liquidation or winding up, at least 20 days' prior
written notice of the date when the same shall take place. Such notice in accordance with the foregoing clause also shall specify (i) the date on which any such record is to be taken for the
purpose of such dividend, distribution or right, the date on which the holders of 

8

 

Common Stock shall be entitled to any such dividend, distribution or right, and the amount and character thereof, and (ii) the date on which any such reorganization, reclassification, merger,
consolidation, sale, transfer, disposition, dissolution, liquidation or winding up is to take place and the time, if any such time is to be fixed, as of which the holders of Common Stock shall be
entitled to exchange their Warrant Shares for securities or other property deliverable upon such disposition, dissolution, liquidation or winding up. Each such written notice shall be sufficiently
given if addressed to Holder at the last address of Holder appearing on the books of the Company and delivered in accordance with Section 17(d). 

        16.    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 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 Principal 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. 

        17.    Miscellaneous. 

        (a)  Jurisdiction.    This Warrant shall constitute a contract under the laws of New York, without regard to its
conflict of law, principles or rules. 

        (b)  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. 

        (c)  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 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 

9

 

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. 

        (d)  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. 

        (e)  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. 

        (f)    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. 

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

        (h)  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. 

        (i)    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. 

        (j)    Acceptance.    Receipt of this Warrant by the Holder shall constitute acceptance of and agreement to all of the
terms and conditions contained herein. 

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

10

 

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

Dated:
December 18, 2002 

	 	 	DOT HILL SYSTEMS CORP.
	

 	
 	

By:	

 
	 	 	 	
 Name:

Title:

11

NOTICE OF EXERCISE  

To:
Dot Hill Systems Corp. 

        (1)  The
undersigned hereby elects to purchase                    Warrant Shares of Dot Hill Systems Corp. 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)  Payment
shall take the form of (check applicable box): 

[    ]
in lawful money of the United States; or 

[    ]
the cancellation of such number of Warrant Shares as is necessary, in accordance with the formula set forth in subsection 3(d), to exercise this Warrant with
respect to the maximum number of Warrant Shares purchasable pursuant to the cashless exercise procedure set forth in subsection 3(d). 

        (3)  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: 

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

	 	 	[PURCHASER]
	

 	
 	

By:	

 
	 	 	 	
 Name:

Title:

	

 	
 	

Dated:	

 
	 	 	 	

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. 

QuickLinks

Exhibit 4.2

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00046-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00046-of-00352.parquet"}]]