... usb modem 1,UMTS 2100MHz 2,GSM/GPRS/EDGE 900/1800MHz (850/1900MHz) 3,HSDPA 7.2Mbps 4,Micro SD huaweiE173 wireless modemHSDPA 7.2Mbps, HSUPA ... 2MbpsUMTS 2100MhzMicro SD card slotKey FeaturesHSUPA/HSDPA/UMTSEDGE/GPRS/GSM 850 ... resolution:800*600 or aboveStandard USB interface Huawei E173 HSDPA 7.2Mbps usb modem