The USB WiFi Bluetooth adapter features a dual band 2.4G/5G wireless network card with a speed of 600Mbps and powerful Wi Fi dongle functions, without the need for additional driver preparation. This adapter is equipped with driver software internally. As long as the wireless network card is inserted into it, the driver program will automatically initiate the installation operation, which will help your computer successfully connect to WiFi. If your computer is unable to access the Internet or read the CD driver properly, it will undoubtedly be the best choice for you. As for WiFi, it is suitable for Windows 7, 8, 8.1, 10,and 11 systems, and can be easily accessed through plug and play operations. Currently, Mac OS 11 and above versions are not supported. In terms of Bluetooth: it can only function on Windows 7, 8, 8.1,10 and 11 systems and is not compatible with Vista, XP, and Mac OS systems. 【 Friendly Reminder 】 We provide you with multiple installation methods: Generally speaking, when you plug this dongle into the USB port of your computer, the driver program will be automatically installed in Windows 7, 8, 8.1, 10, 11 systems, and only plug and play is needed to achieve this. If it looks like a CD drive after insertion and does not automatically complete the installation, you can open it in Windows Explorer, run the corresponding installation program, and then it can work normally and stably. 3. If you encounter issues with drivers that cannot be successfully installed on Mac OS systems, please try the following steps: first, search for "System Preferences"; Next, click on "Security and Privacy"; Then, click "Allow". (It should be noted that both wireless and Bluetooth mice belong to 2.4GHz, which may conflict with your wireless channel.). If you need to use both WiFi and Bluetooth at the same time, 5GHz wireless will undoubtedly be a great choice.