ASUS USB-AC51 is the smallest 802.11ac USB Wi-Fi adapter for you to instantly upgrade your desktop and notebook to the next generation 802.11ac 5G Wi-Fi with hassle-free setup. Its specially-designed internal antenna provides wireless speed up to up to 150Mbps at 2.4 GHz and 433 Mbps at 5 GHz. It supports multiple OS including Windows, Mac OS X, and Linux. The transmission quality and excellent features make USB-AC51 a great choice for simultaneous downloads, online gaming, and video streaming.