Supplemental Indenture No. 4, dated December 13, 2007



 Exhibit 10.55 
 SUPPLEMENTAL INDENTURE NO. 4 
 Supplemental Indenture No. 4 (this “Supplemental
Indenture”), dated as of December 13, 2007, among Avago Technologies General Hungary Vagyonkezelö Kft, a limited liability company organized under the laws of Hungary, and Avago Technologies Wireless Hungary Vagyonkezelö Kft,
a limited liability company organized under the laws of Hungary (together, the “Guaranteeing Subsidiaries” and, each, a “Guaranteeing Subsidiary”), each a subsidiary of Avago Technologies Finance Pte. Ltd., a
private limited company organized under the laws of the Republic of Singapore, and The Bank of New York, as trustee (the “Trustee”). 
 W I T N E S S E T H 
 WHEREAS, each of the Issuers
and the Guarantors (as defined in the Indenture referred to below) has heretofore executed and delivered to the Trustee an indenture (the “Indenture”), dated as of December 1, 2005, as heretofore amended, providing for the
issuance of an unlimited aggregate principal amount of 11 7/8% Senior Subordinated Notes due 2015 (the “Notes”);

 WHEREAS, the Indenture provides that under certain circumstances the Guaranteeing Subsidiaries shall execute and deliver to the
Trustee a supplemental indenture pursuant to which the Guaranteeing Subsidiaries shall unconditionally guarantee all of the Issuers’ Obligations under the Notes and the Indenture on the terms and conditions set forth herein and under the
Indenture (the “Guarantee”); and 
 WHEREAS, pursuant to Section 9.01 of the Indenture, the Trustee is authorized to execute
and deliver this Supplemental Indenture. 
 NOW THEREFORE, in consideration of the foregoing and for other good and valuable consideration,
the receipt of which is hereby acknowledged, the parties mutually covenant and agree for the equal and ratable benefit of the Holders of the Notes as follows: 
 (1)        Capitalized Terms.  Capitalized terms used herein without definition shall have the meanings assigned to them in the Indenture. 
 (2)        Agreement to Guarantee.  Each Guaranteeing Subsidiary hereby agrees as follows:

 (a)        Along with all other Guarantors named in the Indenture, to jointly and
severally unconditionally guarantee to each Holder of a Note authenticated and delivered by the Trustee and to the Trustee and its successors and assigns, irrespective of the validity and enforceability of the Indenture, the Notes or the obligations
of the Issuers hereunder or thereunder, that: 
 (i)        the principal of and
interest, premium and Additional Interest, if any, on the Notes will be promptly paid in full when due, whether at maturity, by acceleration, redemption or otherwise, and interest on the overdue principal of and interest on the Notes, if any, if
lawful, and all other obligations of the Issuers to the Holders or the Trustee hereunder or thereunder will be promptly paid in full or performed, all in accordance with the terms hereof and thereof; and 
  

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 (ii)        in case of any extension of time of
payment or renewal of any Notes or any of such other obligations, that same will be promptly paid in full when due or performed in accordance with the terms of the extension or renewal, whether at stated maturity, by acceleration or otherwise.
Failing payment when due of any amount so guaranteed or any performance so guaranteed for whatever reason, the Guarantors and the Guaranteeing Subsidiaries shall be jointly and severally obligated to pay the same immediately. This is a guarantee of
payment and not a guarantee of collection. 
 (b)        The obligations hereunder
shall be unconditional (to the extent legally permitted under such Guaranteeing Subsidiary’s jurisdiction of organization), irrespective of the validity, regularity or enforceability of the Notes or the Indenture, the absence of any action to
enforce the same, any waiver or consent by any Holder of the Notes with respect to any provisions hereof or thereof, the recovery of any judgment against the Issuers, any action to enforce the same or any other circumstance which might otherwise
constitute a legal or equitable discharge or defense of a guarantor. 
 (c)        The following is hereby waived: diligence, presentment, demand of payment, filing of claims with a court in the event of insolvency or bankruptcy of the Issuers, any right to require a
proceeding first against the Issuers, protest, notice and all demands whatsoever. 
 (d)        The Guarantees shall not be discharged except by complete performance of the obligations contained in the Notes, the Indenture and this Supplemental Indenture, and each Guaranteeing
Subsidiary accepts all obligations of a Guarantor under the Indenture. 
 (e)        If any Holder or the Trustee is required by any court or otherwise to return to the Issuers, the Guarantors (including the Guaranteeing Subsidiaries), or any custodian, trustee, liquidator
or other similar official acting in relation to either the Issuers or the Guarantors, any amount paid either to the Trustee or such Holder, these Guarantees, to the extent theretofore discharged, shall be reinstated in full force and effect.

 (f)        No Guaranteeing Subsidiary shall be entitled to any right of
subrogation in relation to the Holders in respect of any obligations guaranteed hereby until payment in full of all obligations guaranteed hereby. 
 (g)        As between the Guaranteeing Subsidiaries, on the one hand, and the Holders and the Trustee, on the other hand, (x) the maturity of the obligations guaranteed
hereby may be accelerated as provided in Article 6 of the Indenture for the purposes of these Guarantees, notwithstanding any stay, injunction or other prohibition preventing such acceleration in respect of the obligations guaranteed hereby, and
(y) in the event of any declaration of acceleration of such obligations as provided in Article 6 of the Indenture, such obligations (whether or not due and payable) shall forthwith become due and payable by the Guaranteeing Subsidiaries for the
purpose of the Guarantees. 
  

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 (h)        Each Guaranteeing Subsidiary shall
have the right to seek contribution from any non-paying Guarantor so long as the exercise of such right does not impair the rights of the Holders under the Guarantees. 
 (i)        Pursuant to Section 11.02 of the Indenture, after giving effect to all other
contingent and fixed liabilities that are relevant under any applicable Bankruptcy Law or fraudulent conveyance laws, and after giving effect to any collections from, rights to receive contribution from or payments made by or on behalf of any other
Guarantor in respect of the obligations of such other Guarantor under Article 11 of the Indenture, the new Guarantees shall be limited to the maximum amount permissible such that the obligations of such Guaranteeing Subsidiary under the Guarantees
will not constitute a fraudulent transfer or conveyance or otherwise violate applicable law as set forth in Article 11 of the Indenture. 
 (j)        The Guarantees shall remain in full force and effect and continue to be effective should any petition be filed by or against the Issuers for liquidation,
reorganization, should the Issuers become insolvent or make an assignment for the benefit of creditors or should a receiver or trustee be appointed for all or any significant part of the Issuers’ assets, and shall, to the fullest extent
permitted by law, continue to be effective or be reinstated, as the case may be, if at any time payment and performance of the Notes are, pursuant to applicable law, rescinded or reduced in amount, or must otherwise be restored or returned by any
obligee on the Notes and Guarantees, whether as a “voidable preference,” “fraudulent transfer” or otherwise, all as though such payment or performance had not been made. In the event that any payment or any part thereof, is
rescinded, reduced, restored or returned, the Notes shall, to the fullest extent permitted by law, be reinstated and deemed reduced only by such amount paid and not so rescinded, reduced, restored or returned. 
 (k)        In case any provision of the Guarantees shall be invalid, illegal or unenforceable,
the validity, legality, and enforceability of the remaining provisions shall not in any way be affected or impaired thereby. 
 (l)        The Guarantees shall be a general unsecured senior subordinated obligation of each Guaranteeing Subsidiary, ranking pari passu with any other future Senior Indebtedness of each
Guaranteeing Subsidiary, if any. 
 (m)        Each payment to be made by each
Guaranteeing Subsidiary in respect of the Guarantees shall be made without set-off, counterclaim, reduction or diminution of any kind or nature. 
 (3)        Execution and Delivery.  Each Guaranteeing Subsidiary agrees that these Guarantees shall remain in full force and effect notwithstanding the absence of the endorsement of
any notation of such Guarantees on the Notes. 
  

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 (4)        Merger, Consolidation or Sale of All or
Substantially All Assets. 
 (a)        Except as otherwise provided in Section 5.01(c) of
the Indenture, no Guaranteeing Subsidiary may consolidate or merge with or into or wind up into (whether or not the Issuers or a Guaranteeing Subsidiary is the surviving corporation), or sell, assign, transfer, lease, convey or otherwise dispose of
all or substantially all of its properties or assets, in one or more related transactions, to any Person unless: 
 (i)        (A) the Guaranteeing Subsidiary is the surviving corporation or the Person formed by or surviving any such consolidation or merger (if other than the Guaranteeing Subsidiary) or to which
such sale, assignment, transfer, lease, conveyance or other disposition will have been made is a corporation organized or existing under the laws of the jurisdiction of organization of the Guaranteeing Subsidiary, as the case may be, or the laws of
the United States, any state thereof, the District of Columbia, or any territory thereof (the Guaranteeing Subsidiary or such Person, as the case may be, being herein called the “Successor Person”); 
 (B)        the Successor Person, if other than the Guaranteeing Subsidiary, expressly assumes all
the obligations of the Guaranteeing Subsidiary under the Indenture and the Guaranteeing Subsidiary’s related Guarantee pursuant to supplemental indentures or other documents or instruments in form reasonably satisfactory to the Trustee;

 (C)        immediately after such transaction, no Default exists; and 

(D)        the Issuers shall have delivered to the Trustee an Officer’s Certificate and
an Opinion of Counsel, each stating that such consolidation, merger or transfer and such supplemental indentures, if any, comply with the Indenture; or 
 (ii)        the transaction is made in compliance with Section 4.10 of the Indenture; 
 (b)        Subject to certain limitations set forth in the Indenture, the Successor Person will succeed to, and be substituted for, the Guaranteeing Subsidiary under the
Indenture and the Guaranteeing Subsidiary’s Guarantee. Notwithstanding the foregoing, the Guaranteeing Subsidiary may merge into or transfer all or part of its properties and assets to another Guarantor or the Issuers. 
 (5)        Releases. 
 The Guarantee of each Guaranteeing Subsidiary shall be automatically and unconditionally released and discharged, and no further action by the applicable Guaranteeing Subsidiary, the Issuers or the Trustee is required
for the release of such Guaranteeing Subsidiary’s Guarantee, upon: 
 (1)        (A) any sale, exchange or transfer (by merger or otherwise) of the Capital Stock of the Guaranteeing Subsidiary (including any sale, exchange or transfer), after which the Guaranteeing
Subsidiary is no longer a Restricted Subsidiary or all or substantially all the assets of the Guaranteeing Subsidiary which sale, exchange or transfer is made in compliance with the applicable provisions of the Indenture; 
  

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 (B)        the release or discharge of the
guarantee by the Guaranteeing Subsidiary of the Senior Credit Facilities or the guarantee which resulted in the creation of the Guarantee, except a discharge or release by or as a result of payment under such guarantee; 
 (C)        the proper designation of the Guaranteeing Subsidiary as an Unrestricted Subsidiary;
or 
 (D)        the Issuers exercising its Legal Defeasance option or Covenant
Defeasance option in accordance with Article 8 of the Indenture or the Issuers’ obligations under the Indenture being discharged in accordance with the terms of the Indenture; and 
 (2)        the Guaranteeing Subsidiary delivering to the Trustee an Officer’s Certificate
and an Opinion of Counsel, each stating that all conditions precedent provided for in the Indenture relating to such transaction have been complied with. 
 (6)        No Recourse Against Others.  No director, officer, employee, incorporator or stockholder of the Guaranteeing Subsidiaries shall have any liability
for any obligations of the Issuers or the Guarantors (including the Guaranteeing Subsidiaries) under the Notes, any Guarantees, the Indenture or this Supplemental Indenture or for any claim based on, in respect of, or by reason of, such obligations
or their creation. Each Holder by accepting Notes waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Notes. 
 (7)        Governing Law.  THIS SUPPLEMENTAL INDENTURE WILL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK. 
 (8)        Counterparts.  The parties may sign any number of copies of this Supplemental
Indenture. Each signed copy shall be an original, but all of them together represent the same agreement. 
 (9)        Effect of Headings.  The Section headings herein are for convenience only and shall not affect the construction hereof. 
 (10)        The Trustee.  The Trustee shall not be responsible in any manner whatsoever for or
in respect of the validity or sufficiency of this Supplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made solely by the Guaranteeing Subsidiaries. 
 (11)        Subrogation.  The Guaranteeing Subsidiaries shall be subrogated to all rights of
Holders of Notes against the Issuers in respect of any amounts paid by the Guaranteeing Subsidiaries pursuant to the provisions of Section 2 hereof and Section 11.01 of the Indenture; provided that, if an Event of Default has
occurred and is continuing, the Guaranteeing Subsidiaries shall not be entitled to enforce or receive any payments arising out of, or based upon, such right of subrogation until all amounts then due and payable by the Issuers under the Indenture or
the Notes shall have been paid in full. 
  

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 (12)        Benefits Acknowledged.  The
Guaranteeing Subsidiaries’ Guarantees are subject to the terms and conditions set forth in the Indenture. The Guaranteeing Subsidiaries acknowledge that it will receive direct and indirect benefits from the financing arrangements contemplated
by the Indenture and this Supplemental Indenture and that the guarantees and waivers made by it pursuant to the Guarantees are knowingly made in contemplation of such benefits. 
 (13)        Successors.  All agreements of the Guaranteeing Subsidiaries in this Supplemental
Indenture shall bind its Successors, except as otherwise provided in Section 2(k) hereof or elsewhere in this Supplemental Indenture. All agreements of the Trustee in this Supplemental Indenture shall bind its successors. 
  

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 IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture No. 4 to be duly
executed, all as of the date first above written. 
  

					
	 AVAGO TECHNOLOGIES GENERAL
 HUNGARY
VAGYONKEZELÖ KFT

		
	By:	 	 /s/ Mercedes Johnson

		 	Name:	 	Mercedes Johnson
		 	Title:	 	Managing Director
	
	 AVAGO TECHNOLOGIES WIRELESS
 HUNGARY
VAGYONKEZELÖ KFT

		
	By:	 	 /s/ Mercedes Johnson

		 	Name:	 	Mercedes Johnson
		 	Title:	 	Managing Director


 Signature Page to Senior Subordinated Note Indenture Supplement No.4 








					
	THE BANK OF NEW YORK, as Trustee
		
	By:	 	 /s/ Lena Aminova

		 	Name:	 	Lena Aminova
		 	Title:	 	Assistant Vice President


  

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