... ® 880U & AirCard 881U are the latest in USB modems from Sierra Wireless. Designed to work on HSUPA networks, mobile users ... systems. The familiar USB connection and simple setup make getting a fast, reliable wireless connection easy. KEY FEATURES Transfer wireless data at speeds ... Mbps on the uplink, on the latest HSPA networks Familiar USB connection Fully compatible with HSDPA, UMTS, EDGE, GPRS, and ...