Cisco-Linksys WUSB54GC Compact Wireless-G USB Adapter Simply plug-and-play operation to connect PCs wirelessly to networks Supports USB 2.0 with up to 54 Mbps, high-speed data transfer rate with automatic fallback Compatible with 802.11g and 802.11b (2.4GHz) standards Supports up to 128-bit WEP and WPA encryption security Compatible with Windows XP, Vista, and Vista 64-bit edition