Ugreen Bluetooth 5.0 Usb Adapter Cm390 Driver -

While some newer systems may recognize the device immediately, manual driver installation is often required for full functionality, especially on older Windows versions. UGREEN CM390 Bluetooth 5.0 USB Adapter - AliExpress

On Windows 10 and 11, the CM390 is recognized as a generic "Bluetooth Radio" using the Microsoft provided BthLEEnum.sys and BthPort.sys stack. The actual USB-to-Bluetooth bridge is handled by: ugreen bluetooth 5.0 usb adapter cm390 driver

Retailers like DNS Shop often host direct driver links for their customers. While some newer systems may recognize the device

Apple’s Broadcom-based Bluetooth stack does not natively support the RTL8761B. The CM390 will on macOS unless community kexts (e.g., BlueToolFixup from OpenCore) are used, which is unsupported and unstable. BlueToolFixup from OpenCore) are used

For system integrators, the key takeaway is that , and manual intervention is only required for legacy systems (Windows 7, Linux <5.8) or corrupted installations.