3.1M usb wireless modem 1.Rate:153.6Mbps(Up)2.4Mbp(down) 2.Network:EVDORev.O 3 ... .System:Win2000/XP/VISTA/7/Mac 4.Voice SMS 3.1M usb wireless modemDescription ... : 1,Standard USB connector , insert it to laptop ... °C SupportPC voice , ovonic SMS, statistics of network flow ,time ,history calls, and telephone bookAuto ...