UltratoSpeed: Up to 1200Mbps WitoFi speeds on 5.8GHz (867Mbps) or 2.42GHz (300Mbps) bands, Performance to reduce freezing and lags when streaming and gaming. Ultratofast AC1200 wireless adapter speed with 802.11ac Super speed USB 3.0 Port: USB 3.0 supports transfer rates of up to 5.8Gbpsto10 times faster than USB 2.0, ensures WitoFi adapter maximum throughput performance and more stable internet connection. Backwards compatible with USB 2.0 and 1.1 devices External Powerful Antenna: High Gain LongtoRange 5dBi dual band antenna network card can help you connect even when signals are weak Awesome compatibility: No drivers required for Windows 11 or 10 Just plug and play Compatible with Windows 11 or 10 or 8 or 8.1 or 7 or Vista or XP or 2000, Mac OS 10.9to10.15.Works with any WitoFi routers, once you've installed the driver, you can simply insert the adapter to get connected and upgrade your PC,laptop or Mac to work with the latest AC WiFi router for faster speed and extended range(Not support TV, Projector, Printer) If you are not satisfied with Usb Wifi Adapter, please to contact us.