The small footprint of the TP-LINK AC600 Wireless Dual-Band USB Adapter - Archer T2U offers an express route to next generation Wi-Fi connections. TP-LINK's Archer T2U is a dual band USB Adapter that provides selectable 5 GHz and 2.4 GHz bands for the latest standard and backward compatibility to existing Wi-Fi network. It gives users the ability to access crystal clear 5GHz connections to upgrade their notebook or PC's wireless capabilities, while ensuring that they can still access legacy 2.4GHz band wireless networks.