Medialink - Wireless G USB Adapter - 802.11g - 54Mbps - 2.4ghz - Windows 2000 / XP / Vista 32-Bit / Vista 64-Bit / Windows 7 Compatible Compatible With Any Brand 802.11b or 802.11g Router Simplified One Click Wi-Fi Installation Microsoft WHQL Certified Auto-Detects Availablei Local Wireless Networks Supports the Following Security Protocols: WPA/WPA2, 64/128/152-bit WEP.