Features Compatible System Compatible with Windows (10/ 7/ 8/ XP/Vista); Mac OS Lightning Fast speed Upgrades your Wi-Fi Card to 1300Mbps Wi-Fi speeds. Offering 867Mbps over 5GHz or 400Mbps over 2.4GHz for online gaming and HD video streaming with lag free experience USB 3.0 USB 3.0 wifi adapter can transfer data up to 5Gbps, which is backward compatible with USB 2.0 & 1.1 Stable Performance With advanced RTL8812BU chipset amd built-in Antenna for range extended Wi-Fi connection and superior stability on your Desktop, Laptop, wireless adapter offers up to 1300Mbps Wi-Fi speeds in the signal strength, average upload and reading speed. Wi-Fi Hot Spot You can create a Hot spot with the Soft AP Function for more wifi devices NOTE 1. You must have a dual band WiFi router with 5G band if you want to have a 5G signal. 2. The adapter's max speed up to 867Mbps just works when you connect to 5G band, otherwise, it will just run at the max speed of 400Mbps with 2.4G. 3. This WiFi adapter will not boost the speed of original router, it just transmit the wifi signal. 4. For desktop, if the speed is not ideal, you can try to insert the WiFi adapter into the USB3.0(blue) port of you PC, that may guarantee the fully power supply.