C600 High Gain Wireless Dual Band USB Adapter High-Speed Wi-Fi: 256QAM support increases the 2.4 GHz data rate from 150 Mbps to 200 Mbps, 200 Mbps on the 2.4 GHz band and 433 Mbps on the 5 GHz band, ensure you fully enjoy fast AC Wi-Fi. Dual Band Wireless: 2.4 GHz and 5 GHz band provide flexible connectivity, giving your devices access to the latest dual-band Wi-Fi router for faster speed and extended range High-Gain Antenna: A 5dBi high-gain antenna greatly enhances the reception and transmission signal strength of the USB adapter Supports the Latest Operating Systems: Fully compatible with Windows 10/8.1/8/7/XP and Mac OS X