ASUS PCE-N15 Wireless-N Network Adapter (300Mbps Transmit / 300Mbps Receive) with PCI-E interface, Include Full Height and Low Profile bracket, WPS button Support - Manufacturer Refurbished Interface: PCI-Express; Standard: IEEE 802.11 b/g/n; Antenna: 2x R SMA Antenna; Operating Frequency: 2.4GHz Modulation: CCK, DQPSK, DBPSK, OFDM, Management: Software AP Operation Channel: 11 for N. America, 14 Japan, 13 Europe (ETSI) Data Rate: 802.11 b/g/n- downlink up to 300Mbps, uplink up to 150Mbps(20/40MHz) Security: 64-bit WEP, 128-bit WEP, WPA2-PSK, WPA-PSK, WPS