For Win8, Win8.1, Win10, Win11, the adapter is plug and play, requiring no additional driver installation. However, for Windows 7, a driver can be downloaded for free from our website. Please note that the existing internal Bluetooth function needs to be disabled to use the BU02 adapter.The adapter features a slim and compact design that seamlessly fits onto laptops or PCs. Its portability ensures that it won't block adjacent USB ports, allowing for convenient use.This adapter is compatible with a wide range of Bluetooth-enabled devices, such as speakers, keyboards, headsets, and mice. It allows for seamless wireless music streaming and easy file sharing, maximizing the potential of your Bluetooth technology.The bluetooth 5.3 adapter technology to ensure a strong and reliable connection. It can transmit data at speeds of up to 3Mbps, making it perfect for fast and efficient file transfers.