The N Wireless USB Adapter from Belkin is a USB device that adds draft 802.11n and 802.11g wireless networking capabilities to your computer. When used with other draft 802.11n equipment the card can transfer data at speeds up to 300 Mbps. It is also fully backwards compatible with older 54 Mbps 802.11g and 11 Mbps 802.11b hardware. This adapter is a convenient way to add wireless networking capability to your PC.