built-in 3G modem WAP.Wifi802.11b/g SD card up to 16Gb Windows XP,Vista,Windows 7,mac HSPA Connectivity FunctionGSM Band850/900/1800/1900MHzUMTS BandUMTS2100Mhz; 2100/1900/850Mhz is optionalHSxPA Data RateDownlink: 7.2Mbps, Uplink 5.76MbpsUMTS Data Rateup to 384 Kbps DL and ULWIFI Connectivity FunctionWIFI Connectivity Starand802.11b/g/nPre-configurable securitySupport 64, 128, WEP encryption, ...