1:huawei E220 HSDPA USB MODEM 2:7.2Mbps 3:3G:2100Mhz 4:2G:850/900/1800/1900Mhz Huawei E220 HSDPA3G USB MODEMSupport All kinds of ... / EDGE - 850/900/1800/1900 MHz.Speed: Download up to 7.2 Mbps, Upload up to 384 KbpsMemoryMicroSD slot up to 8gb.PortsUSBInterfaceLED ... 43 x 15mm.Weight: 50gSupported SystemsWindows 2000, XP, Vista, 7, Mac OS, Linux 2.6.20 or higher.CommentsUnlocked.Zero-Install Plug and ...