Not support macOS Big Sur. Soft-AP Mode. With Soft-AP mode, Wireless USB adapter WU650 can turn a wired internet connection to a PC or Laptop into a Wi-Fi hotspot, offer wi-fi signal to your mobile devices. Good Compatibility.Whether you are a Windows user, an Apple fan, or a professional user of Linux, as long as you need a wireless usb adapter, USB WiFi adapter WU650 can meet your needs. It is compatible with Windows XP/Vista/7/8/8.1/10, Mac OS, Linux etc. We offer a resource CD which contains the driver , you can follow the manual instructions to install driver. While if a CD ROM is not convenient for you, you can also download the driver from the address printed on the manual. Compact Design. WiFi USB adapter WU650's compact design is convenient to carry for mobile users, you can just plug it into the port, and take it everywhere, no need to worry about blocking adjacent USB interfaces or that the adapter may fall out. Enjoy ultra fast 5GHz. Unlike other 2.4GHz single band 150Mbps wireless adapter, WU650 provides a better user experience by providing both 2.4GHz and 5GHz Wi-Fi bands, making it possible to enjoy 433Mbps ultra-fast 5GHz Wi-Fi speed, no longer have to endure the slow and crowded 2.4GHz. Upgrade to 433Mbps +200Mbps WiFi Speed. Combined with 802.11ac technology, Cudy WU650 brings a 300% speed boost compared with other N150 wireless usb adapter on the market. The maximum speed reaches 433Mbps on 5GHz and 200Mbps on 2.4GHz, greatly improve the performance.