Document:

EXHIBIT 4.3

                          REGISTRATION RIGHTS AGREEMENT

      This Registration Rights Agreement ("Agreement") is entered into as of the
28th day of June, 2005, by and among SRKP 2, Inc., a Delaware corporation (the
"Company"), and the undersigned parties listed under Investor on the signature
page hereto (each, an "Investor" and collectively, the "Investors").

      The Investors currently hold all of the issued and outstanding securities
of the Company; and

      The Investors and the Company desire to enter into this Agreement to
provide the Investors with certain rights relating to the registration of shares
of Common Stock (as defined below) held by them.

      NOW, THEREFORE, in consideration of the mutual covenants and agreements
set forth herein, and for other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the parties hereto agree as
follows:

1.    DEFINITIONS. The following capitalized terms used herein have the
      following meanings:

      "Agreement" means this Agreement, as amended, restated, supplemented, or
otherwise modified from time to time.

      "Commission" means the Securities and Exchange Commission, or any other
federal agency then administering the Securities Act or the Exchange Act.

      "Common Stock" means the common stock, par value $0.001 per share, of the
Company.

      "Company" is defined in the preamble to this Agreement.

      "Demand Registration" is defined in Section 2.1.1.

      "Demanding Holder" is defined in Section 2.1.1.

      "Exchange Act" means the Securities Exchange Act of 1934, as amended, and
the rules and regulations of the Commission promulgated thereunder, all as the
same shall be in effect at the time.

      "Form S-3" is defined in Section 2.3.

      "Indemnified Party" is defined in Section 4.3.

      "Indemnifying Party" is defined in Section 4.3.

      "Investor" is defined in the preamble to this Agreement.

      "Investor Indemnified Party" is defined in Section 4.1.

      "IPO" is defined as the Company's initial public offering of its
securities in ___________, 2005, pursuant to a Registration Statement on Form
SB-2, as amended.

      "Maximum Number of Shares" is defined in Section 2.1.4.

      "Notices" is defined in Section 6.3.

      "Piggy-Back Registration" is defined in Section 2.2.1.

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      "Prospectus" means the Company's prospectus relating to the IPO.

      "Register," "registered" and "registration" mean a registration effected
by preparing and filing a registration statement or similar document in
compliance with the requirements of the Securities Act, and the applicable rules
and regulations promulgated thereunder, and such registration statement becoming
effective.

      "Registrable Securities" means all of the shares of Common Stock held by
Investors. Registrable Securities includes shares of capital stock or other
securities of the Company issued as a dividend or other distribution with
respect to or in exchange for or in replacement of such shares of Common Stock.
As to any particular Registrable Securities, such securities shall cease to be
Registrable Securities when: (a) a Registration Statement with respect to the
sale of such securities shall have become effective under the Securities Act and
such securities shall have been sold, transferred, disposed of or exchanged in
accordance with such Registration Statement; (b) such securities shall have been
otherwise transferred, new certificates for them not bearing a legend
restricting further transfer shall have been delivered by the Company and
subsequent public distribution of them shall not require registration under the
Securities Act; (c) such securities shall have ceased to be outstanding; or (d)
the Securities and Exchange Commission makes a definitive determination to the
Company that the Registrable Securities are salable under Rule 144(k).

      "Registration Statement" means a registration statement filed by the
Company with the Commission in compliance with the Securities Act and the rules
and regulations promulgated thereunder for a public offering and sale of Common
Stock (other than a registration statement on Form S-4 or Form S-8, or its
successor, or any registration statement covering only securities proposed to be
issued in exchange for securities or assets of another entity).

      "Release Date" means the date upon which the Company consummates a
"business combination" with a "target business" as contemplated in the Company's
prospectus relating to its IPO.

      "Securities Act" means the Securities Act of 1933, as amended, and the
rules and regulations of the Commission promulgated thereunder, all as the same
shall be in effect at the time.

      "Underwriter" means a securities dealer who purchases any Registrable
Securities as principal in an underwritten offering and not as part of such
dealer's market-making activities.

2.    REGISTRATION RIGHTS.

      2.1   DEMAND REGISTRATION.

            2.1.1 REQUEST FOR REGISTRATION. At any time and from time to time on
or after the Release Date, the holders of a majority-in-interest of the
Registrable Securities held by the Investors or the transferees of the
Investors, may make a written demand for registration under the Securities Act
of all or part of their Registrable Securities (a "Demand Registration"). Any
demand for a Demand Registration shall specify the number of shares of
Registrable Securities proposed to be sold and the intended method(s) of
distribution thereof. The Company will notify all holders of Registrable
Securities of the demand, and each holder of Registrable Securities who wishes
to include all or a portion of such holder's Registrable Securities in the
Demand Registration (each such holder including shares of Registrable Securities
in such registration, a "Demanding Holder") shall so notify the Company within
fifteen (15) days after the receipt by the holder of the notice from the
Company. Upon any such request, the Demanding Holders shall be entitled to have
their Registrable Securities included in the Demand Registration, subject to
Section 2.1.4 and the provisos set forth in Section 3.1.1. The Company shall not
be obligated to effect more than an aggregate of two (2) Demand Registrations
under this Section 2.1.1 in respect of Registrable Securities.

            2.1.2 EFFECTIVE REGISTRATION. A registration will not count as a
Demand Registration until the Registration Statement filed with the Commission
with respect to such Demand Registration has been declared effective and the
Company has complied with all of its obligations under this Agreement with
respect thereto; provided, however, that if, after such Registration Statement
has been declared effective, the offering of Registrable Securities pursuant to

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a Demand Registration is interfered with by any stop order or injunction of the
Commission or any other governmental agency or court, the Registration Statement
with respect to such Demand Registration will be deemed not to have been
declared effective, unless and until, (i) such stop order or injunction is
removed, rescinded or otherwise terminated, and (ii) a majority-in-interest of
the Demanding Holders thereafter elect to continue the offering; provided,
further, that the Company shall not be obligated to file a second Registration
Statement until a Registration Statement that has been filed is counted as a
Demand Registration or is terminated.

            2.1.3 UNDERWRITTEN OFFERING. If a majority-in-interest of the
Demanding Holders so elect and such holders so advise the Company as part of
their written demand for a Demand Registration, the offering of such Registrable
Securities pursuant to such Demand Registration shall be in the form of an
underwritten offering. In such event, the right of any holder to include its
Registrable Securities in such registration shall be conditioned upon such
holder's participation in such underwriting and the inclusion of such holder's
Registrable Securities in the underwriting to the extent provided herein. All
Demanding Holders proposing to distribute their securities through such
underwriting shall enter into an underwriting agreement in customary form with
the Underwriter or Underwriters selected for such underwriting by a
majority-in-interest of the holders initiating the Demand Registration.

            2.1.4 REDUCTION OF OFFERING. If the managing Underwriter or
Underwriters for a Demand Registration that is to be an underwritten offering
advises the Company and the Demanding Holders in writing that the dollar amount
or number of shares of Registrable Securities which the Demanding Holders desire
to sell, taken together with all other shares of Common Stock or other
securities which the Company desires to sell and the shares of Common Stock, if
any, as to which registration has been requested pursuant to written contractual
piggy-back registration rights held by other stockholders of the Company who
desire to sell, exceeds the maximum dollar amount or maximum number of shares
that can be sold in such offering without adversely affecting the proposed
offering price, the timing, the distribution method, or the probability of
success of such offering (such maximum dollar amount or maximum number of
shares, as applicable, the "Maximum Number of Shares"), then the Company shall
include in such registration: (i) first, the Registrable Securities as to which
Demand Registration has been requested by the Demanding Holders (pro rata in
accordance with the number of shares of Registrable Securities which such
Demanding Holder has requested be included in such registration, regardless of
the number of shares of Registrable Securities held by each Demanding Holder)
that can be sold without exceeding the Maximum Number of Shares; (ii) second, to
the extent that the Maximum Number of Shares has not been reached under the
foregoing clause (i), the shares of Common Stock or other securities that the
Company desires to sell that can be sold without exceeding the Maximum Number of
Shares; (iii) third, to the extent that the Maximum Number of Shares has not
been reached under the foregoing clauses (i) and (ii), the shares of Common
Stock for the account of other persons that the Company is obligated to register
pursuant to written contractual arrangements with such persons and that can be
sold without exceeding the Maximum Number of Shares; and (v) fourth, to the
extent that the Maximum Number of Shares have not been reached under the
foregoing clauses (i), (ii), and (iii), the shares of Common Stock that other
stockholders desire to sell that can be sold without exceeding the Maximum
Number of Shares.

            2.1.5 WITHDRAWAL. If a majority-in-interest of the Demanding Holders
disapprove of the terms of any underwriting or are not entitled to include all
of their Registrable Securities in any offering, such majority-in-interest of
the Demanding Holders may elect to withdraw from such offering by giving written
notice to the Company and the Underwriter or Underwriters of their request to
withdraw prior to the effectiveness of the Registration Statement filed with the
Commission with respect to such Demand Registration. If the majority-in-interest
of the Demanding Holders withdraws from a proposed offering relating to a Demand
Registration, then such registration shall not count as a Demand Registration
provided for in Section 2.1.1.

      2.2   PIGGY-BACK REGISTRATION.

            2.2.1 PIGGY-BACK RIGHTS. If at any time on or after the Release Date
the Company proposes to file a Registration Statement under the Securities Act
with respect to an offering of equity securities, or securities or other
obligations exercisable or exchangeable for, or convertible into, equity
securities, by the Company for its own account or for stockholders of the
Company for their account (or by the Company and by stockholders of the Company
including, without limitation, pursuant to Section 2.1), other than a
Registration Statement (i) filed in connection with any employee stock option or
other benefit plan, (ii) for an exchange offer or offering of securities solely
to the Company's existing stockholders, (iii) for an offering of debt that is
convertible into equity securities of the Company or (iv) for a dividend

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reinvestment plan, then the Company shall (x) give written notice of such
proposed filing to the holders of Registrable Securities as soon as practicable
but in no event less than ten (10) days before the anticipated filing date,
which notice shall describe the amount and type of securities to be included in
such offering, the intended method(s) of distribution, and the name of the
proposed managing Underwriter or Underwriters, if any, of the offering, and (y)
offer to the holders of Registrable Securities in such notice the opportunity to
register the sale of such number of shares of Registrable Securities as such
holders may request in writing within five (5) days following receipt of such
notice (a "Piggy-Back Registration"). The Company shall cause such Registrable
Securities to be included in such registration and shall use its best efforts to
cause the managing Underwriter or Underwriters of a proposed underwritten
offering to permit the Registrable Securities requested to be included in a
Piggy-Back Registration to be included on the same terms and conditions as any
similar securities of the Company and to permit the sale or other disposition of
such Registrable Securities in accordance with the intended method(s) of
distribution thereof. All holders of Registrable Securities proposing to
distribute their securities through a Piggy-Back Registration that involves an
Underwriter or Underwriters shall enter into an underwriting agreement in
customary Form with the Underwriter or Underwriters selected for such Piggy-Back
Registration.

            2.2.2 REDUCTION OF OFFERING. If the managing Underwriter or
Underwriters for a Piggy-Back Registration that is to be an underwritten
offering advises the Company and the holders of Registrable Securities in
writing that the dollar amount or number of shares of Common Stock which the
Company desires to sell, taken together with shares of Common Stock, if any, as
to which registration has been demanded pursuant to written contractual
arrangements with persons other than the holders of Registrable Securities
hereunder, the Registrable Securities as to which registration has been
requested under this Section 2.2, and the shares of Common Stock, if any, as to
which registration has been requested pursuant to the written contractual
piggy-back registration rights of other stockholders of the Company, exceeds the
Maximum Number of Shares, then the Company shall include in any such
registration:

                  (i)   If the registration is undertaken for the Company's
      account: (A) first, the shares of Common Stock or other securities that
      the Company desires to sell that can be sold without exceeding the Maximum
      Number of Shares; (B) second, to the extent that the Maximum Number of
      Shares has not been reached under the foregoing clause (A), the shares of
      Common Stock, if any, including the Registrable Securities, as to which
      registration has been requested pursuant to written contractual piggy-back
      registration rights of security holders (pro rata in accordance with the
      number of shares of Common Stock which each such person has actually
      requested to be included in such registration, regardless of the number of
      shares of Common Stock with respect to which such persons have the right
      to request such inclusion) that can be sold without exceeding the Maximum
      Number of Shares; and

                  (ii)  If the registration is a "demand" registration
      undertaken at the demand of persons other than the holders of Registrable
      Securities pursuant to written contractual arrangements with such persons,
      (A) first, the shares of Common Stock for the account of the demanding
      persons that can be sold without exceeding the Maximum Number of Shares;
      (B) second, to the extent that the Maximum Number of Shares has not been
      reached under the foregoing clause (A), the shares of Common Stock or
      other securities that the Company desires to sell that can be sold without
      exceeding the Maximum Number of Shares; and (C) third, to the extent that
      the Maximum Number of Shares has not been reached under the foregoing
      clauses (A) and (B), the Registrable Securities as to which registration
      has been requested under this Section 2.2 (pro rata in accordance with the
      number of shares of Registrable Securities held by each such holder); and
      (D) fourth, to the extent that the Maximum Number of Shares has not been
      reached under the foregoing clauses (A), (B) and (C), the shares of Common
      Stock, if any, as to which registration has been requested pursuant to
      written contractual piggy-back registration rights which such other
      stockholders desire to sell that can be sold without exceeding the Maximum
      Number of Shares.

            2.2.3 WITHDRAWAL. Any holder of Registrable Securities may elect to
withdraw such holder's request for inclusion of Registrable Securities in any
Piggy-Back Registration by giving written notice to the Company of such request
to withdraw prior to the effectiveness of the Registration Statement. The
Company may also elect to withdraw a registration statement at any time prior to
the effectiveness of the Registration Statement. Notwithstanding any such
withdrawal, the Company shall pay all expenses incurred by the holders of
Registrable Securities in connection with such Piggy-Back Registration as
provided in Section 3.3.

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      2.3   REGISTRATIONS ON FORM S-3. The holders of Registrable Securities may
at any time and from time to time, request in writing that the Company register
the resale of any or all of such Registrable Securities on Form S-3 or any
similar short-Form registration which may be available at such time ("Form
S-3"); provided, however, that the Company shall not be obligated to effect such
request through an underwritten offering. Upon receipt of such written request,
the Company will promptly give written notice of the proposed registration to
all other holders of Registrable Securities, and, as soon as practicable
thereafter, effect the registration of all or such portion of such holder's or
holders' Registrable Securities as are specified in such request, together with
all or such portion of the Registrable Securities of any other holder or holders
joining in such request as are specified in a written request given within
fifteen (15) days after receipt of such written notice from the Company;
provided, however, that the Company shall not be obligated to effect any such
registration pursuant to this Section 2.3: (i) if Form S-3 is not available for
such offering; or (ii) if the holders of the Registrable Securities, together
with the holders of any other securities of the Company entitled to inclusion in
such registration, propose to sell Registrable Securities and such other
securities (if any) at any aggregate price to the public of less than $500,000.
Registrations effected pursuant to this Section 2.3 shall not be counted as
Demand Registrations effected pursuant to Section 2.1.

3.    REGISTRATION PROCEDURES.

      3.1   FILINGS; INFORMATION. Whenever the Company is required to effect the
registration of any Registrable Securities pursuant to Section 2, the Company
shall use its best efforts to effect the registration and sale of such
Registrable Securities in accordance with the intended method(s) of distribution
thereof as expeditiously as practicable, and in connection with any such
request:

            3.1.1 FILING REGISTRATION STATEMENT. The Company shall, as
expeditiously as possible and in any event within sixty (60) days after receipt
of a request for a Demand Registration pursuant to Section 2.1, prepare and file
with the Commission a Registration Statement on any form for which the Company
then qualifies or which counsel for the Company shall deem appropriate and which
form shall be available for the sale of all Registrable Securities to be
registered thereunder in accordance with the intended method(s) of distribution
thereof, and shall use its best efforts to cause such Registration Statement to
become and remain effective for the period required by Section 3.1.3; provided,
however, that the Company shall have the right to defer any Demand Registration
for up to thirty (30) days, and any Piggy-Back Registration for such period as
may be applicable to deferment of any demand registration to which such
Piggy-Back Registration relates, in each case if the Company shall furnish to
the holders a certificate signed by the Chief Executive Officer of the Company
stating that, in the good faith judgment of the Board of Directors of the
Company, it would be materially detrimental to the Company and its stockholders
for such Registration Statement to be effected at such time; provided further,
however, that the Company shall not have the right to exercise the right set
forth in the immediately preceding proviso more than once in any 365-day period
in respect of a Demand Registration hereunder.

            3.1.2 COPIES. The Company shall, prior to filing a Registration
Statement or prospectus, or any amendment or supplement thereto, furnish without
charge to the holders of Registrable Securities included in such registration,
and such holders' legal counsel, copies of such Registration Statement as
proposed to be filed, each amendment and supplement to such Registration
Statement (in each case including all exhibits thereto and documents
incorporated by reference therein), the prospectus included in such Registration
Statement (including each preliminary prospectus), and such other documents as
the holders of Registrable Securities included in such registration or legal
counsel for any such holders may request in order to facilitate the disposition
of the Registrable Securities owned by such holders.

            3.1.3 AMENDMENTS AND SUPPLEMENTS. The Company shall prepare and file
with the Commission such amendments, including post-effective amendments, and
supplements to such Registration Statement and the prospectus used in connection
therewith as may be necessary to keep such Registration Statement effective and
in compliance with the provisions of the Securities Act until all Registrable
Securities and other securities covered by such Registration Statement have been
disposed of in accordance with the intended method(s) of distribution set forth
in such Registration Statement (which period shall not exceed the sum of one
hundred eighty (180) days plus any period during which any such disposition is
interfered with by any stop order or injunction of the Commission or any
governmental agency or court) or such securities have been withdrawn.

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            3.1.4 NOTIFICATION. After the filing of a Registration Statement,
the Company shall promptly, and in no event more than two (2) business days
after such filing, notify the holders of Registrable Securities included in such
Registration Statement of such filing, and shall further notify such holders
promptly and confirm such advice in writing in all events within two (2)
business days of the occurrence of any of the following: (i) when such
Registration Statement becomes effective; (ii) when any post-effective amendment
to such Registration Statement becomes effective; (iii) the issuance or
threatened issuance by the Commission of any stop order (and the Company shall
take all actions required to prevent the entry of such stop order or to remove
it if entered); and (iv) any request by the Commission for any amendment or
supplement to such Registration Statement or any prospectus relating thereto or
for additional information or of the occurrence of an event requiring the
preparation of a supplement or amendment to such prospectus so that, as
thereafter delivered to the purchasers of the securities covered by such
Registration Statement, such prospectus will not contain an untrue statement of
a material fact or omit to state any material fact required to be stated therein
or necessary to make the statements therein not misleading, and promptly make
available to the holders of Registrable Securities included in such Registration
Statement any such supplement or amendment; except that before filing with the
Commission a Registration Statement or prospectus or any amendment or supplement
thereto, including documents incorporated by reference, the Company shall
furnish to the holders of Registrable Securities included in such Registration
Statement and to the legal counsel for any such holders, copies of all such
documents proposed to be filed sufficiently in advance of filing to provide such
holders and legal counsel with a reasonable opportunity to review such documents
and comment thereon, and the Company shall not file any Registration Statement
or prospectus or amendment or supplement thereto, including documents
incorporated by reference, to which such holders or their legal counsel shall
object.

            3.1.5 STATE SECURITIES LAWS COMPLIANCE. The Company shall use its
best efforts to (i) register or qualify the Registrable Securities covered by
the Registration Statement under such securities or "blue sky" laws of such
jurisdictions in the United States as the holders of Registrable Securities
included in such Registration Statement (in light of their intended plan of
distribution) may request and (ii) take such action necessary to cause such
Registrable Securities covered by the Registration Statement to be registered
with or approved by such other governmental authorities as may be necessary by
virtue of the business and operations of the Company and do any and all other
acts and things that may be necessary or advisable to enable the holders of
Registrable Securities included in such Registration Statement to consummate the
disposition of such Registrable Securities in such jurisdictions; provided,
however, that the Company shall not be required to qualify generally to do
business in any jurisdiction where it would not otherwise be required to qualify
but for this paragraph (e) or subject itself to taxation in any such
jurisdiction.

            3.1.6 AGREEMENTS FOR DISPOSITION. The Company shall enter into
customary agreements (including, if applicable, an underwriting agreement in
customary form) and take such other actions as are reasonably required in order
to expedite or facilitate the disposition of such Registrable Securities. The
representations, warranties and covenants of the Company in any underwriting
agreement which are made to or for the benefit of any Underwriters, to the
extent applicable, shall also be made to and for the benefit of the holders of
Registrable Securities included in such registration statement. No holder of
Registrable Securities included in such registration statement shall be required
to make any representations or warranties in the underwriting agreement except,
if applicable, with respect to such holder's organization, good standing,
authority, title to Registrable Securities, lack of conflict of such sale with
such holder's material agreements and organizational documents, and with respect
to written information relating to such holder that such holder has furnished in
writing expressly for inclusion in such Registration Statement.

            3.1.7 COOPERATION. The principal executive officer of the Company,
the principal financial officer of the Company, the principal accounting officer
of the Company and all other officers and members of the management of the
Company shall cooperate fully in any offering of Registrable Securities
hereunder, which cooperation shall include, without limitation, the preparation
of the Registration Statement with respect to such offering and all other
offering materials and related documents, and participation in meetings with
Underwriters, attorneys, accountants and potential investors.

            3.1.8 RECORDS. The Company shall make available for inspection by
the holders of Registrable Securities included in such Registration Statement,
any Underwriter participating in any disposition pursuant to such registration
statement and any attorney, accountant or other professional retained by any
holder of Registrable Securities included in such Registration Statement or any
Underwriter, all financial and other records, pertinent corporate documents and
properties of the Company, as shall be necessary to enable them to exercise
their due diligence responsibility, and cause the Company's officers, directors
and employees to supply all information requested by any of them in connection
with such Registration Statement.

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            3.1.9 OPINIONS AND COMFORT LETTERS. The Company shall furnish to
each holder of Registrable Securities included in any Registration Statement a
signed counterpart, addressed to such holder, of (i) any opinion of counsel to
the Company delivered to any Underwriter and (ii) any comfort letter from the
Company's independent public accountants delivered to any Underwriter. In the
event no legal opinion is delivered to any Underwriter, the Company shall
furnish to each holder of Registrable Securities included in such Registration
Statement, at any time that such holder elects to use a prospectus, an opinion
of counsel to the Company to the effect that the Registration Statement
containing such prospectus has been declared effective and that no stop order is
in effect.

            3.1.10 EARNINGS STATEMENT. The Company shall comply with all
applicable rules and regulations of the Commission and the Securities Act, and
make available to its stockholders, as soon as practicable, an earnings
statement covering a period of twelve (12) months, beginning within three (3)
months after the effective date of the registration statement, which earnings
statement shall satisfy the provisions of Section 11(a) of the Securities Act
and Rule 158 thereunder.

            3.1.11 LISTING. The Company shall use its best efforts to cause all
Registrable Securities included in any registration to be listed on such
exchanges or otherwise designated for trading in the same manner as similar
securities issued by the Company are then listed or designated or, if no such
similar securities are then listed or designated, in a manner satisfactory to
the holders of a majority of the Registrable Securities included in such
registration.

      3.2   OBLIGATION TO SUSPEND DISTRIBUTION. Upon receipt of any notice from
the Company of the happening of any event of the kind described in Section
3.1.4(iv), or, in the case of a resale registration on Form S-3 pursuant to
Section 2.3 hereof, upon any suspension by the Company, pursuant to a written
insider trading compliance program adopted by the Company's Board of Directors,
of the ability of all "insiders" covered by such program to transact in the
Company's securities because of the existence of material non-public
information, each holder of Registrable Securities included in any registration
shall immediately discontinue disposition of such Registrable Securities
pursuant to the Registration Statement covering such Registrable Securities
until such holder receives the supplemented or amended prospectus contemplated
by Section 3.1.4(iv) or the restriction on the ability of "insiders" to transact
in the Company's securities is removed, as applicable, and, if so directed by
the Company, each such holder will deliver to the Company all copies, other than
permanent file copies then in such holder's possession, of the most recent
prospectus covering such Registrable Securities at the time of receipt of such
notice.

      3.3   REGISTRATION EXPENSES. The Company shall bear all costs and expenses
incurred in connection with any Demand Registration pursuant to Section 2.1, any
Piggy-Back Registration pursuant to Section 2.2, and any registration on Form
S-3 effected pursuant to Section 2.3, and all expenses incurred in performing or
complying with its other obligations under this Agreement, whether or not the
Registration Statement becomes effective, including, without limitation: (i) all
registration and filing fees; (ii) fees and expenses of compliance with
securities or "blue sky" laws (including fees and disbursements of counsel in
connection with blue sky qualifications of the Registrable Securities); (iii)
printing expenses; (iv) the Company's internal expenses (including, without
limitation, all salaries and expenses of its officers and employees); (v) the
fees and expenses incurred in connection with the listing of the Registrable
Securities as required by Section 3.1.11; (vi) National Association of
Securities Dealers, Inc. fees; (vii) fees and disbursements of counsel for the
Company and fees and expenses for independent certified public accountants
retained by the Company (including the expenses or costs associated with the
delivery of any opinions or comfort letters requested pursuant to Section
3.1.9); (viii) the fees and expenses of any special experts retained by the
Company in connection with such registration and (ix) the fees and expenses of
one legal counsel selected by the holders of a majority-in-interest of the
Registrable Securities included in such registration. The Company shall have no
obligation to pay any underwriting discounts or selling commissions attributable
to the Registrable Securities being sold by the holders thereof, which
underwriting discounts or selling commissions shall be borne by such holders.
Additionally, in an underwritten offering, all selling stockholders and the
Company shall bear the expenses of the underwriter pro rata in proportion to the
respective amount of shares each is selling in such offering.

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      3.4   INFORMATION. The holders of Registrable Securities shall provide
such information as may reasonably be requested by the Company, or the managing
Underwriter, if any, in connection with the preparation of any Registration
Statement, including amendments and supplements thereto, in order to effect the
registration of any Registrable Securities under the Securities Act pursuant to
Section 2 and in connection with the Company's obligation to comply with federal
and applicable state securities laws.

4.    INDEMNIFICATION AND CONTRIBUTION.

      4.1   INDEMNIFICATION BY THE COMPANY. The Company agrees to indemnify and
hold harmless each Investor and each other holder of Registrable Securities, and
each of their respective officers, employees, affiliates, directors, partners,
members, attorneys and agents, and each person, if any, who controls an Investor
and each other holder of Registrable Securities (within the meaning of Section
15 of the Securities Act or Section 20 of the Exchange Act) (each, an "Investor
Indemnified Party"), from and against any expenses, losses, judgments, claims,
damages or liabilities, whether joint or several, arising out of or based upon
any untrue statement (or allegedly untrue statement) of a material fact
contained in any Registration Statement under which the sale of such Registrable
Securities was registered under the Securities Act, any preliminary prospectus,
final prospectus or summary prospectus contained in the Registration Statement,
or any amendment or supplement to such Registration Statement, or arising out of
or based upon any omission (or alleged omission) to state a material fact
required to be stated therein or necessary to make the statements therein not
misleading, or any violation by the Company of the Securities Act or any rule or
regulation promulgated thereunder applicable to the Company and relating to
action or inaction required of the Company in connection with any such
registration; and the Company shall promptly reimburse the Investor Indemnified
Party for any legal and any other expenses reasonably incurred by such Investor
Indemnified Party in connection with investigating and defending any such
expense, loss, judgment, claim, damage, liability or action; provided, however,
that the Company will not be liable in any such case to the extent that any such
expense, loss, claim, damage or liability arises out of or is based upon any
untrue statement or allegedly untrue statement or omission or alleged omission
made in such Registration Statement, preliminary prospectus, final prospectus,
or summary prospectus, or any such amendment or supplement, in reliance upon and
in conformity with information furnished to the Company, in writing, by such
selling holder expressly for use therein. The Company also shall indemnify any
Underwriter of the Registrable Securities, their officers, affiliates,
directors, partners, members and agents and each person who controls such
Underwriter on substantially the same basis as that of the indemnification
provided above in this Section 4.1.

      4.2   INDEMNIFICATION BY HOLDERS OF REGISTRABLE SECURITIES. Each selling
holder of Registrable Securities will, in the event that any registration is
being effected under the Securities Act pursuant to this Agreement of any
Registrable Securities held by such selling holder, indemnify and hold harmless
the Company, each of its directors and officers and each underwriter (if any),
and each other person, if any, who controls such selling holder or such
underwriter within the meaning of the Securities Act, against any losses,
claims, judgments, damages or liabilities, whether joint or several, insofar as
such losses, claims, judgments, damages or liabilities (or actions in respect
thereof) arise out of or are based upon any untrue statement or allegedly untrue
statement of a material fact contained in any Registration Statement under which
the sale of such Registrable Securities was registered under the Securities Act,
any preliminary prospectus, final prospectus or summary prospectus contained in
the Registration Statement, or any amendment or supplement to the Registration
Statement, or arise out of or are based upon any omission or the alleged
omission to state a material fact required to be stated therein or necessary to
make the statement therein not misleading, if the statement or omission was made
in reliance upon and in conformity with information furnished in writing to the
Company by such selling holder expressly for use therein, and shall reimburse
the Company, its directors and officers, and each such controlling person for
any legal or other expenses reasonably incurred by any of them in connection
with investigation or defending any such loss, claim, damage, liability or
action. Each selling holder's indemnification obligations hereunder shall be
several and not joint and shall be limited to the amount of any net proceeds
actually received by such selling holder.

      4.3   CONDUCT OF INDEMNIFICATION PROCEEDINGS. Promptly after receipt by
any person of any notice of any loss, claim, damage or liability or any action
in respect of which indemnity may be sought pursuant to Section 4.1 or 4.2, such
person (the "Indemnified Party") shall, if a claim in respect thereof is to be
made against any other person for indemnification hereunder, notify such other
person (the "Indemnifying Party") in writing of the loss, claim, judgment,
damage, liability or action; provided, however, that the failure by the
Indemnified Party to notify the Indemnifying Party shall not relieve the
Indemnifying Party from any liability which the Indemnifying Party may have to

                                       8
<PAGE>

such Indemnified Party hereunder, except and solely to the extent the
Indemnifying Party is actually prejudiced by such failure. If the Indemnified
Party is seeking indemnification with respect to any claim or action brought
against the Indemnified Party, then the Indemnifying Party shall be entitled to
participate in such claim or action, and, to the extent that it wishes, jointly
with all other Indemnifying Parties, to assume control of the defense thereof
with counsel satisfactory to the Indemnified Party. After notice from the
Indemnifying Party to the Indemnified Party of its election to assume control of
the defense of such claim or action, the Indemnifying Party shall not be liable
to the Indemnified Party for any legal or other expenses subsequently incurred
by the Indemnified Party in connection with the defense thereof other than
reasonable costs of investigation; provided, however, that in any action in
which both the Indemnified Party and the Indemnifying Party are named as
defendants, the Indemnified Party shall have the right to employ separate
counsel (but no more than one such separate counsel) to represent the
Indemnified Party and its controlling persons who may be subject to liability
arising out of any claim in respect of which indemnity may be sought by the
Indemnified Party against the Indemnifying Party, with the fees and expenses of
such counsel to be paid by such Indemnifying Party if, based upon the written
opinion of counsel of such Indemnified Party, representation of both parties by
the same counsel would be inappropriate due to actual or potential differing
interests between them. No Indemnifying Party shall, without the prior written
consent of the Indemnified Party, consent to entry of judgment or effect any
settlement of any claim or pending or threatened proceeding in respect of which
the Indemnified Party is or could have been a party and indemnity could have
been sought hereunder by such Indemnified Party, unless such judgment or
settlement includes an unconditional release of such Indemnified Party from all
liability arising out of such claim or proceeding.

      4.4   CONTRIBUTION.

            4.4.1 If the indemnification provided for in the foregoing Sections
4.1, 4.2 and 4.3 is unavailable to any Indemnified Party in respect of any loss,
claim, damage, liability or action referred to herein, then each such
Indemnifying Party, in lieu of indemnifying such Indemnified Party, shall
contribute to the amount paid or payable by such Indemnified Party as a result
of such loss, claim, damage, liability or action in such proportion as is
appropriate to reflect the relative fault of the Indemnified Parties and the
Indemnifying Parties in connection with the actions or omissions which resulted
in such loss, claim, damage, liability or action, as well as any other relevant
equitable considerations. The relative fault of any Indemnified Party and any
Indemnifying Party shall be determined by reference to, among other things,
whether the untrue or alleged untrue statement of a material fact or the
omission or alleged omission to state a material fact relates to information
supplied by such Indemnified Party or such Indemnifying Party and the parties'
relative intent, knowledge, access to information and opportunity to correct or
prevent such statement or omission.

            4.4.2 The parties hereto agree that it would not be just and
equitable if contribution pursuant to this Section 4.4 were determined by pro
rata allocation or by any other method of allocation which does not take account
of the equitable considerations referred to in the immediately preceding Section
4.4.1. The amount paid or payable by an Indemnified Party as a result of any
loss, claim, damage, liability or action referred to in the immediately
preceding paragraph shall be deemed to include, subject to the limitations set
forth above, any legal or other expenses incurred by such Indemnified Party in
connection with investigating or defending any such action or claim.
Notwithstanding the provisions of this Section 4.4, no holder of Registrable
Securities shall be required to contribute any amount in excess of the dollar
amount of the net proceeds (after payment of any underwriting fees, discounts,
commissions or taxes) actually received by such holder from the sale of
Registrable Securities which gave rise to such contribution obligation. No
person guilty of fraudulent misrepresentation (within the meaning of Section
11(f) of the Securities Act) shall be entitled to contribution from any person
who was not guilty of such fraudulent misrepresentation.

5.    UNDERWRITING AND DISTRIBUTION.

      5.1   RULE 144. The Company covenants that it shall file any reports
required to be filed by it under the Securities Act and the Exchange Act and
shall take such further action as the holders of Registrable Securities may
reasonably request, all to the extent required from time to time to enable such
holders to sell Registrable Securities without registration under the Securities
Act within the limitation of the exemptions provided by Rule 144 under the
Securities Act, as such Rules may be amended from time to time, or any similar
rule or regulation hereafter adopted by the Commission.

                                       9
<PAGE>

6.    MISCELLANEOUS.

      6.1   OTHER REGISTRATION RIGHTS. The Company represents and warrants that
no person, other than a holder of the Registrable Securities, has any right to
require the Company to register any shares of the Company's capital stock for
sale or to include shares of the Company's capital stock in any registration
filed by the Company for the sale of shares of capital stock for its own account
or for the account of any other person.

      6.2   ASSIGNMENT; NO THIRD PARTY BENEFICIARIES. This Agreement and the
rights, duties and obligations of the Company hereunder may not be assigned or
delegated by the Company in whole or in part. This Agreement and the rights,
duties and obligations of the holders of Registrable Securities hereunder may be
freely assigned or delegated by such holder of Registrable Securities in
conjunction with and to the extent of any transfer of Registrable Securities by
any such holder. This Agreement and the provisions hereof shall be binding upon
and shall inure to the benefit of each of the parties and their respective
successors and the permitted assigns of the Investor or holder of Registrable
Securities or of any assignee of the Investor or holder of Registrable
Securities. This Agreement is not intended to confer any rights or benefits on
any persons that are not party hereto other than as expressly set forth in
Article 4 and this Section 6.2.

      6.3   NOTICES. All notices, demands, requests, consents, approvals or
other communications (collectively, "Notices") required or permitted to be given
hereunder or which are given with respect to this Agreement shall be in writing
and shall be personally served, delivered by reputable air courier service with
charges prepaid, or transmitted by hand delivery, telegram, telex or facsimile,
addressed as set forth below, or to such other address as such party shall have
specified most recently by written notice. Notice shall be deemed given on the
date of service or transmission if personally served or transmitted by telegram,
telex or facsimile; provided, that if such service or transmission is not on a
business day or is after normal business hours, then such notice shall be deemed
given on the next business day. Notice otherwise sent as provided herein shall
be deemed given on the next business day following timely delivery of such
notice to a reputable air courier service with an order for next-day delivery.

      To the Company:

            SRKP 2, Inc.
            1900 Avenue of the Stars, Suite 310
            Los Angeles, CA  90076
            Attention:  President

      with a copy to:

            Kirkpatrick & Lockhart Nicholson Graham LLP
            10100 Santa Monica Boulevard, 7th Floor
            Los Angeles, CA  90067
            Attn:  Thomas J. Poletti, Esq.

      To an Investor, to:

            Richard Rappaport
            c/o SRKP 2, Inc.
            1900 Avenue of the Stars, Suite 310
            Los Angeles, CA  90076

            The Amanda Rappaport Trust
            c/o SRKP 2, Inc.
            1900 Avenue of the Stars, Suite 310
            Los Angeles, CA  90076
            Attn:  Richard Rappaport, Trustee

                                       10
<PAGE>

            The Kailey Rappaport Trust
            c/o SRKP 2, Inc.
            1900 Avenue of the Stars, Suite 310
            Los Angeles, CA  90076
            Attn: Richard Rappaport Trustee

            Debbie Schwartzberg
            c/o SRKP 2, Inc.
            1900 Avenue of the Stars, Suite 310
            Los Angeles, CA  90076

            Glenn Krinsky
            c/o SRKP 2, Inc.
            1900 Avenue of the Stars, Suite 310
            Los Angeles, CA  90076

            Tony Pintsopoulos
            c/o SRKP 2, Inc.
            1900 Avenue of the Stars, Suite 310
            Los Angeles, CA  90076

            Charles Frisco
            c/o SRKP 2, Inc.
            1900 Avenue of the Stars, Suite 310
            Los Angeles, CA  90076

      6.4   SEVERABILITY. This Agreement shall be deemed severable, and the
invalidity or unenforceability of any term or provision hereof shall not affect
the validity or enforceability of this Agreement or of any other term or
provision hereof. Furthermore, in lieu of any such invalid or unenforceable term
or provision, the parties hereto intend that there shall be added as a part of
this Agreement a provision as similar in terms to such invalid or unenforceable
provision as may be possible and be valid and enforceable.

      6.5   COUNTERPARTS. This Agreement may be executed in multiple
counterparts, each of which shall be deemed an original, and all of which taken
together shall constitute one (1) and the same instrument.

      6.6   ENTIRE AGREEMENT. This Agreement (including all agreements entered
into pursuant hereto and all certificates and instruments delivered pursuant
hereto and thereto) constitute the entire agreement of the parties with respect
to the subject matter hereof and supersede all prior and contemporaneous
agreements, representations, understandings, negotiations and discussions
between the parties, whether oral or written.

      6.7   MODIFICATIONS AND AMENDMENTS. No amendment, modification or
termination of this Agreement shall be binding upon any party unless executed in
writing by such party.

      6.8   TITLES AND HEADINGS. Titles and headings of sections of this
Agreement are for convenience only and shall not affect the construction of any
provision of this Agreement.

      6.9   WAIVERS AND EXTENSIONS. Any party to this Agreement may waive any
right, breach or default which such party has the right to waive, provided that
such waiver will not be effective against the waiving party unless it is in
writing, is signed by such party, and specifically refers to this Agreement.
Waivers may be made in advance or after the right waived has arisen or the
breach or default waived has occurred. Any waiver may be conditional. No waiver
of any breach of any agreement or provision herein contained shall be deemed a
waiver of any preceding or succeeding breach thereof nor of any other agreement

                                       11
<PAGE>

or provision herein contained. No waiver or extension of time for performance of
any obligations or acts shall be deemed a waiver or extension of the time for
performance of any other obligations or acts.

      6.10  REMEDIES CUMULATIVE. In the event that the Company fails to observe
or perform any covenant or agreement to be observed or performed under this
Agreement, the Investor or any other holder of Registrable Securities may
proceed to protect and enforce its rights by suit in equity or action at law,
whether for specific performance of any term contained in this Agreement or for
an injunction against the breach of any such term or in aid of the exercise of
any power granted in this Agreement or to enforce any other legal or equitable
right, or to take any one or more of such actions, without being required to
post a bond. None of the rights, powers or remedies conferred under this
Agreement shall be mutually exclusive, and each such right, power or remedy
shall be cumulative and in addition to any other right, power or remedy, whether
conferred by this Agreement or now or hereafter available at law, in equity, by
statute or otherwise.

      6.11  GOVERNING LAW. This Agreement shall be governed by, interpreted
under, and construed in accordance with the internal laws of the State of
Delaware applicable to agreements made and to be performed within the State of
Delaware, without giving effect to any choice-of-law provisions thereof that
would compel the application of the substantive laws of any other jurisdiction.

      6.12  WAIVER OF TRIAL BY JURY. Each party hereby irrevocably and
unconditionally waives the right to a trial by jury in any action, suit,
counterclaim or other proceeding (whether based on contract, tort or otherwise)
arising out of, connected with or relating to this Agreement, the transactions
contemplated hereby, or the actions of the Investor in the negotiation,
administration, performance or enforcement hereof.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

                                       12
<PAGE>

      IN WITNESS WHEREOF, the parties have caused this Registration Rights
Agreement to be executed and delivered by their duly authorized representatives
as of the date first written above.

                                                     SRKP 2, Inc.
                                                     a Delaware corporation

                                                     By: /s/ Richard Rappaport
                                                        ------------------------
                                                        Name:  Richard Rappaport
                                                        Title: President

INVESTORS:

/s/ Richard Rappaport
--------------------------
Richard Rappaport

/s/ Richard Rappaport
--------------------------
The Amanda Rappaport Trust
Richard Rappaport, Trustee

/s/ Richard Rappaport
--------------------------
The Kailey Rappaport Trust
Richard Rappaport, Trustee

--------------------------
Debbie Schwartzberg

/s/ Glenn Krinsky
--------------------------
Glenn Krinsky

/s/ Tony Pintsopoulos
--------------------------
Tony Pintsopoulos

--------------------------
Charles Frisco

                                       13EXHIBIT
      4.9

    

    Execution
      Copy

    

    AMENDMENT
      NO. 1 TO AGREEMENT 

    

    This
      AMENDMENT NO. 1 dated as of April 18, 2005 (this “Amendment”),
      to
      the Agreement dated as of May 12, 2004 (the “Original
      Agreement”),
      among
      PowerDsine Ltd., a company organized under the laws of the State of Israel
      (the
“Company”),
      General Atlantic Partners 78, L.P., a Delaware limited partnership
      (“GAP
      LP”),
      General Atlantic Partners (Bermuda), L.P., a Bermuda limited partnership
      (“GAP
      Bermuda”),
      GAP-W
      International, L.P., a Bermuda limited partnership (“GAP-W
      International”),
      GapStar, LLC, a Delaware limited liability company (“GapStar”),
      GAP
      Coinvestments III, LLC, a Delaware limited liability company (“GAPCO
      III”),
      GAP
      Coinvestments IV, LLC, a Delaware limited liability company (“GAPCO
      IV”),
      and
      GAPCO GmbH & Co. KG, a German limited partnership (“GAPCO
      KG”
      and,
      collectively, with GAP LP, GAP Bermuda, GAP-W International, GapStar, GAPCO
      III
      and GAPCO IV, the “Purchasers”).
      

    

    Capitalized
      terms used but not defined herein shall have the meaning ascribed to such terms
      in the Original Agreement.

    

    WHEREAS,
      pursuant to the Original Agreement, the Purchasers agreed to, among other
      things, a standstill; and

    

    WHEREAS,
      in order to enable certain of the Purchasers to purchase additional Ordinary
      Shares, the Company and the Purchasers wish to amend and restated Section 7.1(a)
      of the Original Agreement and to amend Section 7.2 of the Original Agreement;
      and

    

    WHEREAS,
      the Purchasers currently hold 4,782,387 Ordinary Shares of the Company,
      representing approximately 24.8% of the Company’s outstanding
      shares.

    

    NOW,
      THEREFORE, in consideration of the mutual covenants and agreements set forth
      herein and for good and valuable consideration, the receipt and adequacy of
      which are hereby acknowledged, the parties hereto agree as follows:

    

    1. Amendment
      to Section 7.1(a).
      Section
      7.1(a) is amended and restated in its entirety as follows: 

    

    “(a)
      purchase or otherwise acquire, or offer, seek, propose or agree to acquire,
      ownership (including, but not limited to, beneficial ownership as defined in
      Rule 13d-3 under the Exchange Act) of any securities of the Company, or any
      direct or indirect rights or options to acquire any such securities or any
      securities convertible into such securities (assuming the conversion of such
      options, rights or securities), which, when added to any other securities owned
      by the Purchasers and their Affiliates, represent, in the aggregate, in excess
      of 35% of the outstanding voting securities of the Company; provided,
      however,
      that in
      no event shall any Ordinary Shares or Ordinary Share Equivalents that may be
      issued to the General Atlantic Designee in his capacity as director be
      prohibited by this Section 7.1 or be included for purposes of calculating
      whether or not the above threshold has been exceeded;”

     

    
      
         

      

      
         

        
          

        

      

      
         

      

    

    

    2. Amendment
      to Section 7.2.
      Section
      7.2 is hereby designated Section 7.2(a). Following such Section, the following
      shall be inserted as Section 7.2 (b): 

     

    “(b)
      Until May 12, 2009, on all matters submitted to the shareholders of the Company
      for vote or approval, the Purchasers hereby agree to vote any voting securities
      owned by the Purchasers that represent in excess of 26% of the outstanding
      voting power of the Company
      in the
      same proportion as the votes cast by all other shareholders of the Company
      (excluding all votes cast by the Purchasers and their Affiliates).”

     

    3. Board
      Approval.
      This
      Agreement shall be effective upon its approval either at a meeting of the Board
      of Directors of the Company (the “Board of Directors”) or by written resolution
      in lieu of a meeting of the Board of Directors. The General Atlantic Designee
      (as such term is defined in the Original Agreement) shall not participate in
      any
      actions undertaken, or discussions held, by the Board of Directors relating
      to
      this Amendment, including any vote or consent with respect thereto.

     

    4. Restrictions
      on Purchase.
      Each of
      the Purchasers hereby covenants and agrees that it shall not purchase or
      otherwise acquire, or offer, seek, propose or agree to acquire, ownership
      (including, but not limited to, beneficial ownership as defined in Rule 13d-3
      under the Exchange Act) any securities of the Company, or any direct or indirect
      rights or options to acquire any such securities or any securities convertible
      into such securities (assuming the conversion of such options, rights or
      securities) until the company has filed a Form 6-K with the Securities and
      Exchange Commission pertaining to this Amendment and containing a press release
      in form and in substance acceptable to the Purchasers and the Company (the
      “Form
      6-K”).

     

    5. Obligations
      of the Company.
      As soon
      as practicable after the approval of this Amendment pursuant to Section 2
      hereof, the Company shall file the Form 6-K. Upon execution of this Amendment
      the Company and the Purchasers shall draft and agree on the contents and form
      of
      the press release specified in Section 3 hereof.

     

    6.
       Original
      Agreement.
      Except
      as provided in this Amendment, the Original Agreement shall remain unamended
      and
      in full force and effect.

     

    7. Counterparts.
      This
      Amendment may be executed in any number of counterparts or by facsimile and
      by
      the parties hereto in separate counterparts, each of which when so executed
      shall be deemed to be an original and all of which taken together shall
      constitute one and the same agreement.

     

    8. GOVERNING
      LAW; CONSENT TO JURISDICTION.
      THIS AMENDMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS
      OF
      THE STATE OF NEW YORK WITHOUT REGARD TO THE PRINCIPLES OF CONFLICTS OF LAW
      THEREOF.
      The
      parties hereto irrevocably submit to the exclusive jurisdiction of any state
      or
      federal court sitting in the County of New York, in the State of New York over
      any suit, action or proceeding arising out of or relating to this Amendment.
      To
      the fullest extent they may effectively do so under applicable law, the parties
      hereto irrevocably waive and agree not to assert, by way of motion, as a defense
      or otherwise, any claim that they are not subject to the jurisdiction of any
      such court, any objection that they may now or hereafter have to the laying
      of
      the venue of any such suit, action or proceeding brought in any such court
      and
      any claim that any such suit, action or proceeding brought in any such court
      has
      been brought in an inconvenient forum.

     

    
      
         

      

      
         

        
          

        

      

      
         

      

    

     

    9. WAIVER
      OF JURY TRIAL.
      EACH OF THE PURCHASERS AND THE COMPANY HEREBY WAIVES, TO THE FULLEST EXTENT
      PERMITTED BY LAW, ITS RIGHT TO A JURY TRIAL WITH RESPECT TO ANY ACTION OR CLAIM
      ARISING OUT OF ANY DISPUTE IN CONNECTION WITH THIS AMENDMENT OR ANY RIGHTS
      OR
      OBLIGATIONS HEREUNDER OR THE PERFORMANCE OF SUCH RIGHTS AND OBLIGATIONS. EACH
      PARTY (I) CERTIFIES THAT NO REPRESENTATIVE, AGENT OR ATTORNEY OF ANY OTHER
      PARTY
      HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT SUCH OTHER PARTY WOULD NOT, IN
      THE
      EVENT OF LITIGATION, SEEK TO ENFORCE THE FOREGOING WAIVERS AND (II) ACKNOWLEDGES
      THAT IT AND THE OTHER PARTIES HERETO HAVE BEEN INDUCED TO ENTER INTO THIS
      AMENDMENT BY, AMONG OTHER THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS
      CONTAINED HEREIN.

     

    
      
         

      

      
         

        
          

        

      

      
         

      

    

    IN
      WITNESS WHEREOF, the undersigned have executed, or have caused to be executed,
      this Amendment on the date first written above. 

     

    
      	 	 	 
	 	POWERDSINE
              LTD.
	 
 	 
 	 
 
	 	By:  	
              /s/
                Igal Rotem

            
	 	
              

              Name:
                Igal Rotem

            
	 	
              Title:
                CEO

            

    

     

    
      	 	 	 
	 	GENERAL
              ATLANTIC PARTNERS 78, L.P.
	 
 	 
 	 
 
	 	By:  	
              GENERAL
                ATLANTIC LLC,

              its General Partner

            
	
               

               

            	 
	 	By:	
              /s/
                Matthew Nimetz

            
	 	
              

              Name: Matthew Nimetz
	 	
              Title:
                Managing Director

            

    

    

      	 	 	 
	 	GENERAL
              ATLANTIC PARTNERS (BERMUDA), L.P.
	 
 	 
 	 
 
	 	By:  	GAP
              (BERMUDA) LIMITED,
	 	its General Partner
	
               

               

            	 
	 	By:	
              /s/
                Matthew Nimetz 

            
	 	
              
                

                Name: Matthew Nimetz

            
	 	Title: Vice President

    

    

      	 	 	 
	 	GAP-W
              INTERNATIONAL, L.P. 
	 
 	 
 	 
 
	 	By:  	GAP
              (BERMUDA) LIMITED,
	 	its General Partner
	
               

               

            	 
	 	By:	
              /s/
                Matthew Nimetz 

            
	 	
              
                

                Name: Matthew Nimetz

            
	 	Title: Vice President

    

     

    
      
         

      

      
         

        
          

        

      

      
         

    

    

      	 	 	 
	 	GAPSTAR,
              LLC
	 
 	 
 	 
 
	 	By:  	GENERAL
              ATLANTIC LLC,
	 	its General Partner
	
               

               

            	 
	 	By:	
              /s/
                Matthew Nimetz 

            
	 	
              
                

                Name: Matthew Nimetz

            
	 	Title: Managing Director

    

     

    
      	 	 	 
	 	GAP
              COINVESTMENTS III, LLC
	 
 	 
 	 
 
	 	By:  	
              /s/
                Matthew Nimetz

            
	 	
              

              Name:
                Matthew Nimetz

            
	 	
              Title:
                Managing Director

            

    

     

    
      	 	 	 
	 	GAPCO
              GMBH & CO. KG
	 
 	 
 	 
 
	 	By:  	GAPCO MANAGEMENT GMBH,
	 	its General Partner
	
               

               

            	 
	 	By:	
              /s/
                Matthew Nimetz 

            
	 	
              
                

                Name: Matthew Nimetz

            
	 	Title: Managing
              Director

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