What This Product Does TP-LINK’s TL-WDN4200 is an N900 Wireless Dual Band USB Adapter giving users the ability to access crystal clear 5GHz connections or legacy 2.4GHz connections at 450Mbps. With wireless connections transmitting over the 5GHz band, users needn’t worry about interference from neighboring wireless devices and 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 and online gaming. The Best of Both Bands TP-LINK’s TL-WDN4200 is an N900 Wireless Dual Band USB Adapter giving users the ability to access crystal clear 5GHz connections or legacy 2.4GHz connections to upgrade their notebook or PC’s wireless capabilities to operate with new 5GHz band wireless networks, while ensuring that they can still access legacy 2.4GHz band wireless networks. N900 Wireless Speed Using either the 2.4GHz or 5GHz bands, users will have super fast 450Mbps wireless speeds for all their networking tasks. Bundled Utility - Quick & Hassle-Free Installation With its bundled wireless setup utility and WPS button, the TL-WDN4200 is very easy to setup and secure, even for novice users.