3g hsdpa modem support micro sd card slot up to 8G Fast dial-up,Small,Slight,Streamlined,Convenient to carry,UIM Card Slot opti 3g hsdpa modem support micro sd card slot up to ... /UMITS:2100MHZ,GSM850/900/1800/1900MHZTechnical Standards WCDMA(hsdpa) Sensitivity-104dBmData Service RateMax7.2Mbps(download)/384Kbps(upload)SMS servicessupportR-UIMsupportAT command Supports ...