1.Unlocked Sierra 3g Wireless WCDMA Module MC8780 2.7.2mbps downlink speed 3.Interface: ... PCI-e 4.best price&high qualiy Unlocked Sierra 3g Wireless WCDMA Module MC8780 The tri-band MC8780 and MC8781 PCI ... , HSDPA, UMTS), 850/900/1800/1900 (GPRS, EDGE)Compatibility: Windows 2000, Windows XP, Windows Vista, Windows 7Compatible with: DELL E6400, D420, D430, D620 , D630 ...