SierraWirelessMC8775 MiniPCIExpress适合全部带WWANSIM接口的DELL、IBM、华硕等本本上。适合全球的sim卡，放心使用。 官网：http://www.sierrawireless.com/product/mc8775.aspx 驱动:WindowsOSftp://ftp.hp.com/pub/softpaq/sp36501-37000/sp36889.exeMacOShttp://www.sierrawireless.com/resources/software/8x0/Mac/Watcher2.0.6.dmgLinux http://www.sierrawireless.com/resources/support/Software/Linux/sierra.v.1.0.6b.zip3GWatcher拨号软件http://www.sierrawireless.com/resources/software/watcher/Build1618/3G_Watcher_Generic.msi使用评测：http://www.thinkpt.cn/blog/article.asp?id=292http://www.friendeye.com/topic.asp?l_id=46 t_id=88869 page=3000 适用网络:HSDPA/HSUPA/WCDMA/EDGE/GPRS(中国联通的3G网络/中国联通的2G网络/中国联通2.5G网络/中国移动2G网络/中国移动2.5G网络/及全球所有GSM及WCDMA网络频率:WCDMA2100/1900/850MHzGPRS/EDGE850/900/1800/1900MHzThetri-bandMC8775PCIExpressMiniCard,builtusingtheMSM6280 MobileStationModem chipsetfromQUALCOMM,offerspeakdownloaddataratesof3.6Mbps. TheMC8775PCIExpressMiniCardembeddedmoduleoffersconnectivitytoallthreeHSDPA/UMTSfrequencybands(850,1900,2100MHz)andallfourEDGE/GPRSbands(850,900,1800,and1900MHz)usedworldwide,allowingseamlessglobalroamingonthebestavailablenetwork.图片：