Fenvi Cf-wk350e Ar5b22 Wireless N 300 Bluetooth 4.0 PCI Express Desktop Adapter compatible: could only compact with xp win7 systerm Chepset: AR5B22 CF-WK350E Wireless N 300 Bluetooth 4.0 PCI Express Desktop Adapter Double Antennas CF-WK350E 300Mbps ABGN PCI-E 1X Bluetooth 4.0 for Win7/8 AR5b22