PLX Technology to Demonstrate Latest PCI Express Switches; New PLX ExpressLane PEX 8524 Switch Highlighted at PCI-SIG Developers Conference 2005.

SAN JOSE, Calif. -- PLX Technology, Inc. (Nasdaq:PLXT), the leading supplier of standard input/output (I/O) interconnect silicon to the communications, server, storage, embedded-control, and consumer industries, is featuring at the PCI-SIG Developers Conference 2005 its ExpressLane(TM) PCI Express(TM) (PCIe) line of switching products, including the new PEX 8524 24-lane switch. PLX is also exhibiting at the conference its entire line of ExpressLane PCIe devices, including the 16-lane PEX 8516 switch and 32-lane PEX 8532 switches. All three ExpressLane PCIe switches are available now.

PLX's presence at the conference complements the event's PCIe focus. PCI-SIG member PCIe implementations will be featured as a part of the conference sessions, which includes PCIe in various I/O designs, common pitfalls in PCIe design and verification, and performance analysis of PCIe designs. These sessions were developed to address specific implementations and help member companies integrate PCIe technologies seamlessly into their products.

Unprecedented Flexibility, Versatility

PLX's ExpressLane switching devices deliver unprecedented PCI Express switching flexibility by providing completely configurable ports, on-chip non-transparency for multiprocessor designs, two virtual channels, and both peer-to-peer and fan-out capability.

The new PEX 8524 switch offers 24 flexible PCIe lanes that can be allocated to six highly configurable ports, one of which could be programmed as a non-transparent port to allow the addition of a second CPU or an intelligent I/O module. The device provides hot-plug capability on every port, large internal packet memory, non-blocking switch fabric, programmable outputs, and multiple configuration options.

The ExpressLane switching devices are the industry's only PCIe switches to feature flexible ports, two virtual channels and non-transparent bridging. The devices' flexible port widths allow any port to be configured as either upstream or downstream through hardware strapping, software configuration or an optional EEPROM. Furthermore, the switches provide optional end-to-end cyclical redundancy checks (CRC) to support the applications that require the guarantee of data integrity while it moves from source to destination. In addition to the basic error reporting, the ExpressLane switch line supports advanced error reporting, thus easing system development, debug and optimization.

PLX is among the industry's first suppliers to support the PCIe momentum, development efforts and announce actual silicon for PCI Express technology. The company began sampling ExpressLane devices in 2004.

PLX has been developing I/O interconnect solutions since 1986.

The PCI-SIG is the Special Interest Group that owns and manages PCI specifications as open industry standards. The organization defines and implements new industry standard I/O specifications as the industry's local I/O needs evolve.

About PLX Technology

PLX Technology, Inc. (www.plxtech.com), based in Sunnyvale, Calif., USA, is the leading supplier of 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 our customers through an integrated combination of high-performance silicon, hardware and software design tools, and partnerships.

PLX and ExpressLane are trademarks of PLX Technology, Inc., which may be registered in some jurisdictions. All other product names that appear in this material are for identification purposes only and are acknowledged to be trademarks or registered trademarks of their respective companies. Other names and brands may be claimed as the property of others.