ASUS USB-AC51 is a pocket-size 802.11ac USB Wi-Fi adapter for you to instantly upgrade your desktop and notebook to the next generation 5G Wi-Fi with hassle-free setup. Its specially-designed internal antenna provides wireless speeds up to up to 150Mbps at 2.4Ghz and 433Mbps at 5Ghz. It supports multiple operating systems 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. Fast Wi-Fi becomes more accessible via USB, going up to 433Mbps on the clear 5Ghz band. Using 802.11ac wireless, faster connectivity and enjoyment come to all your devices. Compared with current 802.11n, the USB-AC51 delivers up to 433Mbps at 5Ghz, which is 3X faster than 802.11n. Quoted network speeds and bandwidth based on current IEEE 802.11ac specifications. Actual performance may be affected by network and service provider factors, interface type, and other conditions. Connected devices must be 802.11ac-compatible for best results. Dual-band operation suits mainstream and power users. The 2.4 GHz band is perfect for web browsing, email, and social networking, while the 5 GHz frequency enables smooth HD streaming and online multiplayer for blazingly fast and lag-free home entertainment. The world's most compact wireless USB adapter measures just 3cm long. It's easy to carry and fits in pockets, yet offers strong wireless. With its USB interface, the USB-AC51 gives your desktop and notebook an instant 802.11ac Wi-Fi upgrade, with access to speeds of up to 433 Mbps. Remember to always keep your device's firmware up to date so you can benefit from the very latest service and security enhancements - and get exciting new features!