The easy way to add next-generation 802.11ac Wi-Fi to notebook & desktop PCs ASUS USB (Universal Serial Bus)-AC51 is the smallest 802.11ac USB (Universal Serial Bus) Wi-Fi adapter for you to instantly upgrade your desktop & notebook to the next generation 5G Wi-Fi with hassle-free setup. Its specially-designed internal antenna provides wireless speed up to up to 150 Mbps at 2.4 GHz & 433 Mbps at 5 GHz. It supports multiple OS including Windows, Mac OS X, & Linux. The transmission quality & excellent features make USB (Universal Serial Bus)-AC51 a great choice for simultaneous downloads, online gaming, & video streaming. Next gen 802.11ac wireless, up to 3X faster than previous wireless N adapters The fastest Wi-Fi ever becomes more accessible via USB (Universal Serial Bus), going up to 433 Mbps on the clear 5 GHz b&. Using 802.11ac wireless, faster connectivity & enjoyment come to all your devices. Compared with current 802.11n, the USB (Universal Serial Bus)-AC51 delivers up to 433 Mbps at 5 GHz, which is 3X faster than 802.11n. *"ed network speeds & bandwidth based on current IEEE 802.11ac specifications. Actual performance may be affected by network & service provider factors, interface type, & other conditions. Connected devices must be 802.11ac-compatible for best results. Selectable dual-band 433 Mbps/150 Mbps bandwidth Dual-band operation suits mainstream & power users. The 2.4 GHz band is perfect for web browsing, email, & social networking, while the 5 GHz frequency enables smooth HD streaming & online multiplayer for blazingly fast & lag-free home entertainment. Smallest 802.11ac Wi-Fi adapter for easy connection & instant upgrade for PCs The world's most compact wireless USB (Universal Serial Bus) adapter measures just 3cm long. It's easy to carry & fits in pockets, yet offers strong wireless. With its USB (Universal Serial Bus) interface, the USB (Universal Serial Bus)-AC51 gives your desktop & notebook an instant 802.11ac Wi-Fi upgrade, with access to speeds of up to 433 Mbps.