[Dual-Band 650Mbps Speed]COMFAST CF-811ACV3 offers high-speed 650Mbps transmission rate for smoother video streaming across both 2.4GHz and 5.8GHz frequencies. [Plug and Play]No driver download required. Simply plug in for automatic installation and easy setup, making it more stable and powerful than built-in wireless adapters. [Versatile Connectivity]Functions as a WiFi receiver for laptops and desktops, or as an AP to broadcast WiFi for other devices when no WiFi is available. [Compact Design]Mini hidden design integrates seamlessly with laptops and desktops without occupying extra space. [Enhanced Security]Features WPA3 encryption for significantly improved network security. [Wide Compatibility]Supports multiple systems including Windows XP or 7 or 8 or 8.1 or 10 or 11, with driver-free use on Win 7 or 10 or 11. Specifications: Model: CF-811ACV3 Wireless Speed: 650Mbps Frequency Bands: 2.4GHz andamp 5.8GHz USB Version: USB 2.0 Transmission Rates: 11b (1 or 2 or 5.5 or 11Mbps), 11g (6 or 9 or 12 or 18 or 24 or 36 or 48 or 54Mbps), 11n (200Mbps), 11ac (433Mbps) Security Features: WPA-WEP, WPA-PSK, WPA2-PSK, WPA3 Wireless Standards: IEEE802.11a or b or g or n or ac OS Compatibility: Windows XP or 7 or 8 or 8.1 or 10 or 11 (32-bit, 64-bit) (Win7 or 10 or 11 can be used without driver)