Fourth Amendment To Lease Dated As of December 12, 2005

FOURTH AMENDMENT TO LEASE


This Fourth Amendment to Lease (the "FOURTH AMENDMENT"), dated as of December 12, 2005 is made by and between Marlborough Campus Limited Partnership, a Massachusetts limited partnership ("LANDLORD"), and 3Com Corporation, a Delaware corporation ("TENANT").


BACKGROUND


WHEREAS, Landlord and Tenant entered into a lease (the "ORIGINAL LEASE") dated as of November 26, 2002, as amended by First Amendment to Lease dated as of November 26, 2002, Second Amendment to Lease dated as of February 16, 2005, and Third Amendment to Lease dated as of July 18, 2005 (the Original Lease, as amended, the "LEASE") pursuant to which Landlord leased to Tenant certain premises containing approximately 168,315 rentable square feet (the "ORIGINAL PREMISES") located in the building at 350 Campus Drive ("BUILDING 2"), and approximately 2,478 rentable square feet of space (the "EXPANSION PREMISES") located on the second floor of the building located at 100 Campus Drive ("BUILDING 1"), and approximately 30,203 rentable square feet of space (the "ADDITIONAL PREMISES") located on the fifth floor of Building 1 (the Original Premises, the Expansion Premises and the Additional Premises, collectively, the "Premises"), in The Campus at Marlborough (the "PROJECT"), in Marlborough, Massachusetts; and


WHEREAS, Landlord and Tenant wish to amend the Lease as more particularly set forth herein.


AGREEMENT


NOW THEREFORE, in consideration of the mutual covenants and conditions of the parties set forth in the Lease and this Fourth Amendment, and for other good and valuable consideration, the parties, intending to be legally bound, agree that the Lease is hereby amended as follows:


1. Defined Terms. Capitalized terms used in this Fourth Amendment and not otherwise defined herein shall have the meanings set forth in the Lease.


2. Right of First Offer to Lease Ad ...