The D-Link Range Booster USB Adapter DWA140 N300 is a black dual-band adapter with a maximum wireless data rate of 300 Mbps. It is designed to fit PCs and offers easy connectivity via USB 2.0 ports. This new, sealed product from China provides a reliable and efficient solution for improving your home networking and connectivity. With its dual-band feature and high data rate, the D-Link adapter ensures a strong and stable connection for all your wireless networking needs.