Cisco-Linksys WUSB54G Wireless-G USB Adapter Connects your desktop or notebook to a wireless network at up to 54 Mbps when used with a USB 2.0 port Easy, no-tools setup on any desktop or notebook Also compatible with Wireless-B networks (at 11 Mbps) Wireless communications are protected by up to 128-bit data encryption Compatible with Windows 2000 or XP