Sierra Wireless introduces ExpressCard product line with AirCard® 597E EV-DO Revision A ExpressCard

AirCard 597E brings new form factor and features to the company’s flagship AirCard product line

August 28, 2006 - Vancouver, British Columbia – Sierra Wireless (NASDAQ: SWIR - TSX: SW) today announced the introduction of its ExpressCard product line, with the upcoming AirCard® 597E wireless wide area network card for EV-DO Revision A networks. Built for notebook computers with ExpressCard expansion slots, the AirCard 597E will be fully compliant with network operator requirements and will offer user-friendly features such as Assisted GPS (aGPS) location based services; a robust, fixed antenna design; and an external antenna jack for flexibility and improved reception in fringe coverage areas or for specialized applications. The AirCard 597E is expected to begin shipping in the first quarter of 2007. ExpressCard models for HSDPA networks are expected to follow later in the year.

ABI research estimates that adoption of the ExpressCard standard for PC card slots will be significant in 2007, shipping in 45 percent of laptops sold, up from 10 percent in 2006*. Sierra Wireless will also continue to produce AirCard products in the Type II PC Card form factor to serve the established base of notebook users with PC Card slots. For those with PC Card slots who wish to purchase an ExpressCard product in anticipation of an upcoming notebook upgrade, the company will offer an ExpressCard-to-PC Card adapter accessory.

“Notebook installations of ExpressCard slots are expected to move toward critical mass in 2007 – we are timing our ExpressCard products to match market adoption.” said Trent Punnett, Senior Vice President, Marketing and Corporate Development for Sierra Wireless. “The AirCard 597E delivers a fresh new industrial design with a fixed antenna that is not compromised by the smaller form factor – our engineering team has designed the antenna to provide performance comparable to our new AirCard 595 PC Card. Having this level of internal expertise means the company is not reliant on off-the-shelf components, and that enables us to consistently deliver the durable, reliable products our customers expect from Sierra Wireless.”

The AirCard 597E wireless wide area network card is an ExpressCard 34 (ie. 34 mm wide) form factor compliant card, compatible with both ExpressCard 34 and ExpressCard 54 slots in newer notebook computers. For customers without an ExpressCard slot, an adapter will be available to allow the use of the card in Type II PCMCIA card slots.

Designed for connectivity to EV-DO Revision A networks, the AirCard 597E is capable of peak data speeds of 3.1 Mbps on the downlink and 1.8 Mbps on the uplink when operating on a Revision A network. For use in areas where EV-DO Revision A is not yet available, the card is compatible with widely available EV-DO Release 0 and CDMA 1X networks.

* Mobile Broadband to the Laptop: Cellular PC Cards and Embedded Modems, 2006-2011, ABI Research, April 2006.

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. Sierra Wireless is headquartered in Richmond, British Columbia, Canada, with additional offices in Carlsbad, California, London, and Hong Kong. For more information about Sierra Wireless, please visit www.sierrawireless.com.

“AirCard” is a registered 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.

Contact Information

Sharlene Myers

Media Communications Specialist

Sierra Wireless

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