HP WLAN 802.11a/b/g W500 is a miniPCI wireless LAN adapter that is compatible with certain HP notebook PCs. Features: IEEE 802.11a/b/g operation for connecting with the highest available throughput in more locations. Low power consumption for long battery life. Support for important security standards including WEP, WPA, 802.1x, and AES. WiFi-certified interoperability, and proven compatibility with Cisco Aironet infrastructure products through the Cisco Compatible Extensions Program.