EXHIBIT 10.50

                               AMENDMENT TO LEASE

         THIS THIRD  AMENDMENT TO LEASE is dated for reference  purposes only as
June 26, 1997, and is part of that Lease dated March 26, 1992, together with the
Summary of Basic  Lease  Terms,  the First  Addendum  To Lease,  the  Acceptance
Agreement, the First Amendment to Lease, dated July 21, 1992, the Right of First
Refusal  Agreement,  dated November 12, 1992, the  Memorandum  Agreement,  dated
November 12, 1992, the Second  Amendment to Lease,  dated November 12, 1992, the
Assignment of Lease,  dated June 7, 1996,  and the Guaranty,  dated June 7, 1996
thereto (collectively, the "Lease") by and between SSMRT Pacific Business Center
(1),  Inc.,  a  Delaware  corporation,   ("Landlord")  Successor-In-Interest  to
Catellus Development  Corporation,  ("Landlord"),  and ELXI Acquistion,  Inc., a
California corporation as  Successor-in-Interest  to Anetec Technology,  Inc., a
California corporation is made with reference to the following facts:

         A. The  Premises  currently  leased  by  Tenant  pursuant  to the Lease
consists of 17,220  rentable  square feet commonly known as 6082 Stewart Avenue,
City of Fremont, California.

         B. The Lease Term for said Premises  currently expires on September 30,
1997.

         C. Tenant and Landlord have agreed to extend the Term of the Lease.

         NOW,  THEREFORE,  Landlord and Tenant  hereby agree that the Summary of
Basic Lease Terms is amended as follows:

                  1. Lease Term: Article 2 is hereby amended to provide that the
Lease Term shall be extended through and including January 31, 1998.

                  2. Base Monthly Rent: Commencing October 1, 1997, Article 3.1,
is hereby amended to provide for the Base Monthly Rent as follows:

         October 1, 1997 through and including January 31, 1998:  $10,676.40 per
month

                  3. Security Deposit:  Article 3.3 is hereby amended to provide
for an increase in the Security  Deposit of $ 1,894.20 which Tenant has provided
Landlord upon signature hereon, for a total of $ 10,676.40.

                  4.  Retained Real Estate  Brokers:  Article 18.7 is amended to
provide  that Tenant  warrants  that it has not had any  dealings  with any real
estate brokers or salesmen or incurred any  obligations  for the payment of real
estate  brokerage  commissions or finder's fees which would be earned or due and
payable by reason of the execution of this Lease Amendment.

                  5.  Delivery  and   Acceptance   of  Premises:   Delivery  and
acceptance of the Premises shall be "as is".

                  6. Except as expressly set forth in this Amendment,  all terms
and conditions of the Lease remain in full force and effect.

         IN WITNESS  WHEREOF,  Landlord  and  Tenant  have  executed  this Third
Amendment to be effective as of the date first set forth above.
<PAGE>

LANDLORD:                                   TENANT:

SSMRT Pacific Business Center (1), Inc.     ELXI Acquisition, Inc.
a Delaware corporation                      a California corporation

By:     AMB Insitutional Realty Advisors
        Its:  Asset Manager


By:    ______________________________       By:    ____________________________
        John L. Rossi, Vice President              [Name]

                                            Title: ____________________________


Dated: __________________________           Dated: ____________________________