TP-LINK's TL-WDN4200 is an N900 wireless dual band USB (Universal Serial Bus) adapter giving users the ability to access crystal clear 5 GHz connections or legacy 2.4 GHz connections at 450 Mbps. With wireless connections transmitting over the 5 GHz b&, users needn't worry about interference from neighboring wireless devices & the plethora of household appliances that may interfere with their wireless signal, ensuring high-quality connections ideal for bandwidth-intensive applications such as HD video streaming & online gaming.