Realtek RTL8188EU Wireless LAN 802.11n USB 2.0 Network Adapter 150Mbps Chipset:RTL8188EU Standard: IEEE 802.11n,IEEE 802.11g, IEEE 802.11b Supports 64/128 bit WEP, WPA encryption Effective working distance: 100 meters farthest indoor and 150 meters farthest outdoor (varies due to the environment) Supports: Windows XP 32bit, Windows XP 64bit, Windows Vista 32bit, Windows Vista 64bit, Windows 7 32bit, Windows 7 64bit