TXB Lan Card Features: 802.11b/g Wireless LAN standards. Backward compatible with 802.11b device 2.4GHz Frequency band Built-in Hirose antenna connectors User-selectable WEP 64/128 bit data encryption and Wi-Fi WPA WPA2 security Support Windows 2000, XP Up to 54Mbps 54M chip:Atheros ar2413; 108M Chip:Atheros ar5414