The primary issue with the HK-808 on Mac is "controller contention." macOS typically defaults to the internal Bluetooth module even if a USB adapter is present. To force the Mac to use the HK-808, users may need to use advanced tools like (part of Apple's Additional Tools for Xcode) to manually switch the active host controller . Conclusion
If you need reliable Bluetooth on a Mac that lacks it internally, avoid the HK-808. Instead, buy: Hk-808 Bluetooth Usb Adapter Driver For Mac
On macOS Mojave/Catalina, you can attempt to force-load a CSR driver using or a custom IOUSBHostFamily.kext patch. This requires System Integrity Protection (SIP) to be disabled and may break with system updates. The primary issue with the HK-808 on Mac