This Bluetooth WiFi adapter requires two drives (Bluetooth + WiFi) to be used, but the Bluetooth drive does not support Windows XP and for Mac OS X_x005F_x000D_The transmission speed this wireless USB adapter is 1200Mbps (2.4G: 300Mbps, 5G: 867Mbps). A router with 1200Mbps or above can maximize the performance of this USB WiFi adapter_x005F_x000D_If you have a desktop computer, please insert the WiFi adapter into the USB port on the back of the computer host. In this way, the WiFi adapter can get enough power to avoid the problem of signal lost_x005F_x000D_Specification:_x005F_x000D_Chipset: RTL8822BU_x005F_x000D_Frequency: 2.4G/5G Dual Band (2.4GHz~2.4835GHz/5.15GHz~5.85GHz)_x005F_x000D_Transmission speed: 867Mbps + 300Mbps_x005F_x000D_Bluetooth version: 4.1_x005F_x000D_Interface: USB3.0_x005F_x000D_Power supply: USB 5.0V0.1V_x005F_x000D_Operating temperature: -10 to +50_x005F_x000D_Storage temperature: -40 to +70_x005F_x000D_Note: _x005F_x000D_This WiFi adapter will not increase the speed of the original router, but will only help your computer to better receive the signal and speed of the router._x005F_x000D_Package included:_x005F_x000D_1 x 1200Mbps Bluetooth WiFi Adapter_x005F_x000D_1 x CD Driver_x005F_x000D_1 x English User Manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store