Cm390 Driver — Ugreen Bluetooth 5.0 Usb Adapter
The is a compact dongle designed to add high-speed wireless connectivity to Windows-based PCs. It uses the Realtek RTL8761BU chip to provide stable connections for up to 5 devices simultaneously, including headsets, mice, and keyboards. Driver Download & Installation
Windows power management turns off the USB port or the Bluetooth radio. Solution: ugreen bluetooth 5.0 usb adapter cm390 driver
For the Bluetooth 5.0 USB Adapter, the driver installation process depends on your operating system. Most modern versions of Windows handle this automatically, but older systems require a manual download. Driver Installation Methods The is a compact dongle designed to add
| Use Case | Recommended Adapter | Why? | | :--- | :--- | :--- | | | TP-Link UB500 (Bluetooth 5.0) | Uses same Realtek chip but with better antenna. Drivers on TP-Link site are updated frequently. | | Linux Native (no firmware hassle) | ASUS USB-BT500 | Mediatek chipset – firmware included in Linux kernel 5.7+. | | macOS / Hackintosh | Any Broadcom BCM20702-based dongle (e.g., IOGEAR GBU521) | Native support with BlueToolFixup. Realtek chips on macOS are a nightmare. | | Bluetooth 5.3 / LE Audio | UGREEN CM491 (Bluetooth 5.3) | Newer chip, better power efficiency, but still Realtek-based. | Solution: For the Bluetooth 5
: Supported on Windows 10, 8.1, and 7 (32/64-bit). It is generally not compatible with macOS, Linux (unless specifically supported by the kernel), or car stereo systems.