... O 3.System:Win2000/XP/VISTA/7/Mac 4.usb modem wireless Description : 3g wireless modem1,Standard USB connector , insert it to laptop or computer ... seconds from dial numbers to connection internet successfully7,Support PC voice , ovonic SMS8,Support statistics of network flow ,time and history ... bookAuto installationYesSupport system Windows2000/XP/VISTA/7/Mac CDMA 800M 3G Wireless Modem usb 2.4Mbps