Sierra Wireless introduces product line for next generation EV-DO networks

The AirCard® 595 wireless wide area network card and the MC5725 PCI Express Mini Card embedded module will offer increased data rates and faster uploads.
Vancouver, Canada-March 20, 2006
Sierra Wireless (NASDAQ: SWIR - TSX: SW) today announced the introduction of the company’s product line for EV-DO Revision A networks. The AirCard® 595 wireless wide area network card and the MC5725 PCI Express Mini Card embedded module are designed to take advantage of the increased speed and functionality offered on the next-generation EV-DO networks, providing mobile professionals with faster file uploads and the capacity to support multimedia applications such as video streaming or Web conferencing.

“We believe that the benefits Revision A network technology will provide to our customers are a significant step toward the widespread adoption of wireless wide area network connectivity by mobile professionals,” said Trent Punnett, Senior Vice President of Marketing and Corporate Development for Sierra Wireless. “For that reason, Sierra Wireless is committed to leading the way in bringing EV-DO Revision A devices to market.”

EV-DO Revision A is an upgrade to current EV-DO networks that supports faster data rates and increased system capacity, offering peak data rates of 3.1 Mbps on the downlink and up to 1.8 Mbps on the uplink. The faster data rates, particularly on the uplink, will improve the user experience for those who need to send large files such as photos or graphics to colleagues or clients over their wireless data connection.

The AirCard 595, a Type II PC card, is the latest addition to Sierra Wireless’s award winning AirCard line of wireless wide area network cards for mobile computing. Scheduled for commercial shipment in the third quarter of 2006, the AirCard 595 will also be fully compatible with current EV-DO networks, as well as CDMA 1X networks, for use in areas where an EV-DO Rev. A network is not available.

Designed to provide an integrated EV-DO Revision A connection for AirCard Enabled™ notebook computers and other mobile computing devices, the MC5725 is the newest embedded module from Sierra Wireless, which has more than 10 years’ experience in working with original equipment manufacturers to provide built-in wireless wide area network connectivity for a variety of devices and applications. Like the AirCard 595, the MC5725 will be backward compatible to provide seamless connections to current EV-DO and CDMA 1X networks.

Early models of the AirCard 595 and the MC5725 are available to infrastructure vendors, OEM customers, and network operators for testing and integration purposes.

For more information about Sierra Wireless products, please visit http://www.sierrawireless.com/product. To contact the Sierra Wireless Sales Desk, please call 604-232-1488 or e-mail sales@sierrawireless.com.

About Sierra Wireless

Sierra Wireless (NASDAQ: SWIR – TSX: SW) develops and markets reliable, high quality wireless communications products that provide mobile professionals with data and voice access to wide area wireless networks. The Sierra Wireless product portfolio includes the award-winning AirCard® line of wireless PC cards, embedded modules for original equipment manufacturers (OEMs), and the MP line of rugged, vehicle-mounted wireless modems. Sierra Wireless also offers professional services to OEM customers during product development, leveraging the company’s expertise in wireless design and integration to provide built-in wireless connectivity for notebook computers and other portable computing devices. For more information about Sierra Wireless, please visit www.sierrawireless.com.

“AirCard” is a registered trademark, and “AirCard Enabled” is a trademark of Sierra Wireless. Other product or service names mentioned herein may be the trademarks of their respective owners.

Forward Looking Statements
This press release contains forward-looking statements that involve risks and uncertainties. These forward-looking statements relate to, among other things, plans and timing for the introduction or enhancement of our services and products, statements about future market conditions, supply conditions, channel and end customer demand conditions, revenues, gross margins, operating expenses, profits, and other expectations, intentions, and plans contained in this press release that are not historical fact. Our expectations regarding future revenues and earnings depend in part upon our ability to successfully develop, manufacture, and supply products that we do not produce today and that meet defined specifications. When used in this press release, the words "plan", "expect", "believe", and similar expressions generally identify forward-looking statements. These statements reflect our current expectations. They are subject to a number of risks and uncertainties, including, but not limited to, changes in technology and changes in the wireless data communications market. In light of the many risks and uncertainties surrounding the wireless data communications market, you should understand that we cannot assure you that the forward-looking statements contained in this press release will be realized.