Exhibit 99.1

                  PLX Technology Announces Resignation of CFO;
                    Company Provides Revenue Guidance Update


    SUNNYVALE, Calif.--(BUSINESS WIRE)--July 6, 2006--PLX Technology,
Inc. (NASDAQ:PLXT):

    --  Second Quarter Revenues Expected to Be Between $19.2 Million
        and $19.3 Million

    --  Torres to Continue in Transition Role

    PLX Technology, Inc. (NASDAQ:PLXT) today announced that Rafael
Torres, chief financial officer, has decided to leave the Company to
become the chief financial officer of a larger public technology
company outside the interconnect-silicon chip market. Torres has been
with PLX for more than seven years and has served the Company as its
chief financial officer for nearly the past six years. Torres will
continue to work with the Company to ensure a smooth transition, and
will participate in the Company's second-quarter fiscal-year 2006
earnings conference call scheduled for July 18, 2006. Michael Salameh,
chief executive officer, will become acting chief financial officer
effective July 19, 2006 until a permanent chief financial officer is
identified. The Company has launched a search to identify a CFO that
can help scale the Company as it continues to execute its growth
strategy.
    "During his tenure at PLX, Rafael has made significant
contributions to the Company," said Salameh. "Most notably, he has
built a highly competent and professional finance organization, and
has successfully led us through a myriad of new financial reporting
requirements. I will miss working with Rafael, but I am happy for him
that he has found an exciting career-growth opportunity."
    "This has been a difficult professional decision for me," said
Torres. "However, I know that I am leaving the Company at a time when
it continues to post strong revenue and earnings growth, and has a
strong cash position and no debt. With its industry-leading product
offerings and talented management team, PLX has the ability to
continue to execute a high-growth strategy."
    The Company also said that preliminarily it expects its revenues
for the second fiscal quarter of 2006 to be between $19.2 million and
$19.3 million. Final revenues for the second fiscal quarter of 2006
are subject to change based on the Company's customary quarterly close
and audit procedures. The Company's second-quarter fiscal-year 2006
earnings conference call is scheduled for July 18, 2006 at 2:00 p.m.,
PST.

    About PLX

    PLX Technology, Inc. (www.plxtech.com), based in Sunnyvale,
Calif., USA, is the leading supplier of PCI Express and other standard
I/O interconnect silicon to the communications, server, storage,
embedded-control, and consumer industries. All PLX I/O interconnect
products are available in lead-free packaging. The PLX solution
provides a competitive edge to customers through an integrated
combination of high-performance silicon, hardware and software design
tools. These innovative solutions enable customers to develop products
with industry-leading performance and functionality. Furthermore, the
combination of PLX product features, supporting development tools and
partnerships allows customers to bring their designs to market faster.
PLX PCI, PCI Express and USB interconnect chips are designed into a
wide variety of communications, server, storage, embedded-control, and
consumer products.

    SAFE HARBOR STATEMENT UNDER THE PRIVATE SECURITIES LITIGATION
REFORM ACT OF 1995

    This release includes statements that qualify as forward-looking
statements under the Private Securities Litigation Reform Act of 1995.
These include statements about the Company's estimated revenues. Such
statements involve risks and uncertainties, which may cause actual
results to differ materially from those set forth in the statements.
Factors that could cause actual results to differ materially include
risks and uncertainties, such as reduced demand for products of
electronic equipment manufacturers, which include the Company's
products, adverse economic conditions in general or those specifically
affecting the Company's markets, technical difficulties and delays in
the development process, errors in the products, reduced backlog for
the Company's customers and unexpected expenses. Please refer to the
documents filed by the Company with the SEC from time to time,
including, but not limited to, the Annual Report on Form 10-K for the
year ended December 31, 2005, and Form 10-Q for the quarter ended
March 31, 2006 which identify important risk factors that could cause
actual results to differ from those contained in the forward-looking
statements. All forward-looking statements are made as of today, and
the Company assumes no obligation to update such statements.


    CONTACT: PLX Technology
             Rafael Torres, 408-328-3555
             rtorres@plxtech.com
             or
             CommonGround Communications (for PLX)
             Jerry Steach, 415-222-9996
             jsteach@plxtech.com