3G HSDPA USB Modem 1.USB HSDPA 3G modem, 2.Support 8GB Micro-SD Card, 3.PhoneBook, SMS, Single-band, double-b 1.USB HSDPA 3G modem, 2 ... rate)384kbps Uplink,7.2Mbps Downlink5 Plug&play(Auto installation)6 Micro-SD slot(Expandable up to 16GB,use as memory ... /XP,Vista,Win7 WinCE Linux(2.6.18 later) Android, MAC(10.5 later) . 3G hsdpa card 7.2M 3G HSDPA USB Modem 3G data card