ASUS PCE-AC68/US Dual-band Wireless-AC1900 Adapter IEEE 802.11ac, IEEE 802.11a/b/g/n PCI Express Up to 600 and 1300Mbps Wireless Data Rates WPA2 manufactured recertified Wireless Data Rates: Up to 600 and 1300Mbps Frequency Band: 2.4 GHz / 5 GHz Standards: IEEE 802.11ac, IEEE 802.11a/b/g/n Security: 64-bit WEP, 128-bit WEP, WPA2-PSK, WPA-PSK Channels: 11 for N. America, 13 Europe (ETSI) Modulation: 64QAM, 16QAM, CCK, DQPSK, DBPSK, OFDM Antenna: 3 x R SMA Antenna System Requirements: OS Support: Windows 8 , 32bit/64bit Windows 7 , 32bit/64bit Windows Vista , 32bit/64bit Windows XP , 32bit/64bit