AC650 High Gain Wireless Dual Band USB Adapter MU6H High-Speed Dual-Band Wi-Fi: 256-QAM support increases the 2.4 GHz data rate from 150 Mbps to 200 Mbps. Enjoy speeds of up to200 Mbps on the 2.4 GHz band and 433 Mbps on the 5 GHz band, to take full advantage of your AC Wi-Fi. High-Gain Antenna: A 5dBi high-gain antenna greatly enhances the reception and transmission strength of the USB adapter Internal Driver: Smart easy-install for Windows operating system