The ASUS RT-AC51U is a dual-band 802.11a/c wireless broadband router, with the 2.4GHz band offering 300 Mbps maximum speed and 5GHz frequency providing 433 Mbps. The two fixed antennas expand your wireless coverage seamlessly. With robust controls, a simple graphical user interface and easy 30-second setup, the router is certainly versatile. Its multi-purpose USB port can be used for printer networking, 3G/4G connections, storage sharing, and charging mobile devices.