... MC8780 The tri-band MC8780 and MC8781 PCI Express Mini Cards, built using the MSM7200™ Mobile Station Modem™ chipset from QUALCOMM ... , HSDPA, UMTS), 850/900/1800/1900 (GPRS, EDGE)Compatibility: Windows 2000, Windows XP, Windows Vista, Windows 7Compatible with: DELL E6400, D420, D430, D620 , D630, D820 ...