AT&T SIERRA 885 USBConnect Mercury Unlocked-GSM

Technical Specifications Dimensions Weight 1.2 ounces Size (inches) 2.6 x 1.0 x 0.7 inches Memory Expandable memory storage 4 GB Memory format microSD(TM) Wireless Technology GSM/GPRS 850/900/1800/900 MHz 3G 850/1900/2100 MHz EDGE high speed data network EDGE Class 12 Features Interface type Plug-and-Play USB device Connectivity technology Wireless Max transfer rate Typically 700 Kbps - 1.7 Mbps download / 500 Kbps - 1.2 Mbps uplink* Cellular Enhancement Protocol GSM/GPRS/EDGE, HSPA Cellular Enhancement Protocol GSM/GPRS/EDGE UMTS/HSDPA/HSUPA* Antenna Integrated Antenna Qty   Supported OS Microsoft Windows Vista, XP, and 2000, Mac OS 10.4 or later   The AT&T USBConnect Mercury has:   USB connection Compact modem plugs directly into your laptop's USB port.   Dual network coverage Works seamlessly across AT&