ASUS PCE-N53 Dual-Band Wireless-N600 Adapter IEEE 802.11a/b/g/n PCI Express Up to 300Mbps downlink+300Mbps uplink Wireless Data Rates (Asus Certified) Wireless Data Rates: Up to 300 Mbps downlink + 300 Mbps uplink Frequency Band: 2.4 GHz / 5 GHz Standards: IEEE 802.11a/b/g/n Channels: 11 for N. America, 13 Europe (ETSI) Modulation: CCK, DQPSK, DBPSK, OFDM Transmitted Power: b mode: 15 ~19 dBm g mode: 13 ~17 dBm n mode: 12 ~16 dBm Antenna: 2 x R SMA Antenna System Requirements: Windows 7 32-bit / 64-bit Windows Vista Windows XP Linux Kernel 2.6 (Support Ubuntu Fedora only)