?WARRANTY?If you are not satisfied with usb Wifi Adapter, please feel free to contact us , We will try our best to help you. ?Good Compatibility? Compatible with Windows ( 11/10/ 7/ 8/ 8.1/ XP); Mac OS X (10.6~10.15); Driver installation may be required. You can download the driver via: https://drive.google.com/file/d/1wQ6s-HbNFIBVRH6hJsnsd7yA_HwudlXP/view?usp=share_link. ?USB 3.0 & MU-MIMO?Experience blazing-fast data transfers with USB 3.0 and get data up to 10x faster than USB 2.0. Combined with MU-MIMO technology, the USB WiFi adapter can provide two simultaneous data streams, improving the throughput and efficiency of the entire network, reducing latency. ?Tiny Design for Use On the Go?The miniature USB Wi-Fi adapter is more portable than traditional USB adapters, making it ideal for taking it with you as you travel. You can just plug it into the port and no need to worry about blocking adjacent USB interfaces or that the adapter may fall out. ?1300Mbps Lightning-Fast Speed? USB wifi adapter for desktop pc is designed with the new AC1300 technology and has a faster transmission rate than other WiFi adapters. With WiFi speed up to 867Mbps on 5GHz band, 400Mbps on 2.4GHz band, it is ideal for online games, downloading and watching HD video streaming.