Linksys Wireless-G Portable USB Adapter connects your USB-equipped desktop or notebook computer to a wireless network at incredible speeds. Delivers data rates up to 54Mbps (5 times as fast as 802.11b), without the trouble of opening up the case of your desktop computer. The high-gain antenna lets you put your computer almost anywhere in the building. Features: Connects your desktop or notebook to a wireless network at up to 54Mbps when used with a USB 2.0 port. Easy, no-tools setup on any desktop or notebook computer with USB support. Also compatible with Wireless-B networks (at 11Mbps). Wireless communications are protected by up to 128-bit data encryption.