The "CM390" is UGREEN’s specific PCB and casing design for their flagship Bluetooth 5.0 dongle. It is plug-and-play for Windows 10/11 only if Windows Update is enabled. However, many users disable Windows Update or need the driver for older OS versions, which is why the driver file is critical.
Modern computers often lack CD drives. Using the official online download page is the recommended method in 2026.
This usually indicates a driver conflict.
is a compact solution for adding wireless connectivity to PCs that lack native Bluetooth. UGREEN Bluetooth 5.0 Adapter CM390 Drivers 29-Aug-2024 —
The CM390 requires manual driver installation on Linux. The following steps are known to work on Ubuntu 20.04 and similar distributions: ugreen bluetooth 5.0 usb adapter cm390 driver
Full compatibility with Bluetooth Low Energy (BLE) devices like wireless mice, keyboards, and fitness trackers. Technical Specifications Overview
Run the downloaded driver installer and follow the on-screen prompts. after the installation is complete. Technical Specifications UGREEN CM390 Bluetooth 5.0 USB Adapter User Manual
The UGREEN CM390 is a reliable budget adapter, but its performance is entirely dependent on correct driver installation. Users must be aware that and that the driver must be installed before the hardware is connected on Windows systems for the best results.
Do not let driver confusion ruin your experience. Follow this guide, and within 10 minutes, your old desktop will be streaming music to high-end headphones and connecting to a mechanical keyboard as if it were a brand new laptop. The "CM390" is UGREEN’s specific PCB and casing
Upon first insertion:
While Windows 10 and 11 can often auto-install a generic driver, downloading the dedicated driver from UGREEN ensures you get the full feature set and maximum stability. Here’s how to get the official driver:
Some Linux distributions (Fedora 38+) include this firmware by default. Try a live USB first.
is a popular, compact solution for adding high-speed Bluetooth connectivity to desktop PCs and laptops. Whether you are connecting headphones, mice, keyboards, or transferring files, this adapter provides stable, low-latency performance. However, to get the best performance—particularly on Windows 7, 8, or older Windows 10 builds—installing the correct is essential. Modern computers often lack CD drives
is an incredibly popular, low-cost solution designed to add high-speed Bluetooth 5.0 connectivity to your PC.
If you are having trouble, the best place to find the latest drivers is the Ugreen website directly. If you are still experiencing issues, (Windows 10, 11, etc.)? Verify if your computer has built-in bluetooth already? UGREEN CM390 Bluetooth Adapter User Guide - device.report
This comprehensive guide covers downloading, installing, and troubleshooting the UGREEN CM390 driver to maintain a stable connection. Technical Specifications: UGREEN CM390