1. 3g wireless modem 2. usb wireless modem 3. EDGE/GPRS/GSM850/ 900/1800/1900MHz 4.T-FLASH ... . HSDPA: Downlink: 7.2M IntroductionThe HSDPA USB modem is a multi-mode, 3G USB modem, working in HSDPA/ WCDMA/ EDGE/ GPRS/ GSM ... or a desktop PC, it integrates the functionality of a modem and a mobile phone (SMS), and combines mobile communication with ...