The Great HK-808 Hunt: Bringing Bluetooth to Your Old Mac (Without Losing Your Mind)
Generic CSR dongles like the HK-808 are designed for Windows. On Windows 10/11, the driver installs automatically via Windows Update (CSR Harmony or Generic Bluetooth Radio). On macOS, Apple does not provide a downloadable installer for CSR chipsets. Hk-808 Bluetooth Usb Adapter Driver For Mac