The UGREEN Bluetooth 5.0 USB Adapter (Model CM390) Go to product viewer dialog for this item. is a compact dongle designed to provide wireless connectivity for PCs and laptops lacking built-in Bluetooth. Powered by the Realtek RTL8761BUV chipset , it supports up to five simultaneous connections, including headphones, keyboards, and mice, with a range of up to 20–30 meters in open spaces. Driver Installation Guide The driver requirements for the depend on your operating system. While modern versions of Windows often feature automatic detection, older systems or specific configurations may require a manual setup. Windows 10 & 11 : These systems typically recognize the adapter automatically as soon as it is plugged into a USB port. Windows 7 & 8.1 : Manual driver installation is mandatory for these versions. Driver Sources : If automatic installation fails, you can download the official drivers by searching for SKU "80889" on the UGREEN Download Center . Step-by-Step Manual Installation Question about Ugreen CM390 - Galaxus
UGREEN Bluetooth 5.0 USB Adapter (Model CM390 / Part Number 80889) is designed to add wireless connectivity to Windows PCs, supporting up to five devices simultaneously like headsets, mice, and keyboards. While modern Windows versions often detect it automatically, manual driver installation is sometimes required for full functionality. galaxus.fr How to Install the CM390 Driver You can set up the adapter using the plug-and-play feature or manual installation methods: Automatic Installation (Windows 10/11) : Plug the adapter into an available USB port. The system should automatically recognize the device and install necessary drivers within seconds. Manual Download : If automatic setup fails, visit the UGREEN Download Center and search for product model to find the specific driver package. Installation Steps Run the downloaded Follow the on-screen prompts and click and restart your computer to activate the adapter. galaxus.fr Critical Setup Notice: Conflicts with Built-in Bluetooth If your computer already has internal Bluetooth, the UGREEN adapter may not work correctly until the built-in version is disabled Unplug the UGREEN adapter Device Manager , right-click your internal Bluetooth radio, and select Disable device UGREEN adapter back in and proceed with the installation Troubleshooting Common Issues Unstable Connection : Keep devices within the 20-meter (60 feet) range and minimize interference from Wi-Fi routers or microwaves. Adapter Not Recognized : Try a different USB port and ensure the LED indicator on the adapter is lit. Choppy Audio : Close background applications that might be heavy on system resources or update your computer's general audio drivers. Product Specifications Bluetooth Version 5.0 + EDR + Low Energy Compatibility Windows 7, 8.1, 10, 11 Up to 20m–30m (Line of sight) Max Devices Connect up to 5 devices at once for a specific version of Windows? Question about Ugreen CM390 - Galaxus
To set up your UGREEN CM390 Bluetooth 5.0 USB Adapter Go to product viewer dialog for this item. , you can typically rely on plug-and-play functionality for modern systems, or download the official driver if manual installation is required. Driver Installation Guide While the device often includes a driver CD, you can install it without one using these methods: Automatic Installation (Plug-and-Play) : For Windows 11, 10, and 8.1 , simply plug the adapter into a USB port. The system should automatically recognize it as a "Bluetooth Radio" and install the necessary drivers within seconds. Manual Download : If automatic detection fails, visit the UGREEN Download Center and search for the product code 80889 to download the latest driver package. Installation Steps : Plug the adapter into your PC's USB port. If manual installation is needed, run the downloaded setup.exe . Follow the on-screen prompts and restart your computer once finished to ensure the driver initializes correctly. Compatibility & Performance Operating Systems : 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. Chipset : The adapter uses the Broadcom BCM20702A0 chipset, known for reliable stability and native support in older Windows versions. Capacity : You can connect up to five devices simultaneously, such as mice, keyboards, and headsets. Troubleshooting Tips UGREEN CM390 Bluetooth Adapter User Guide - device.report
UGREEN CM390 Bluetooth 5.0 USB Adapter (model number ) is a compact dongle designed to provide wireless connectivity to desktops and laptops. It utilizes the Realtek RTL8761BUV chipset to support Bluetooth 5.0 with Enhanced Data Rate (EDR). Global Brand PLC. Driver Installation Guide For the adapter to function correctly, the appropriate driver must be installed on your system. Automatic Installation Windows 10 Windows 11 , the driver often installs automatically upon plugging the device into a USB port. Manual Installation (CD) : You can use the included driver CD. Insert it, locate the file, and follow the on-screen prompts to complete the installation. Manual Installation (Online Download) : If you do not have a CD drive, visit the UGREEN official download page and search for product model to download the latest driver package. System Restart : After installation, click to restart your computer and ensure the adapter is fully recognized. Key Specifications & Compatibility The adapter is built for performance and multi-device management: UGREEN CM390-80889B Bluetooth 5.0 Wireless USB Adapter ugreen bluetooth 5.0 usb adapter cm390 driver
The Ultimate Guide to the UGREEN Bluetooth 5.0 USB Adapter (CM390): Drivers, Installation, and Troubleshooting In an era where wireless peripherals are dominating the market—from noise-canceling headphones to precision gaming mice—having reliable Bluetooth connectivity on your desktop PC or older laptop is no longer a luxury; it’s a necessity. Unfortunately, many desktop computers lack built-in Bluetooth, and older laptops often ship with outdated Bluetooth 4.0 or 4.2 hardware. Enter the UGREEN Bluetooth 5.0 USB Adapter (Model: CM390) . This tiny, affordable dongle promises to bring high-speed, long-range wireless connectivity to virtually any computer. However, a device is only as good as its software. The single most searched question surrounding this product is: “Where do I find the correct UGREEN Bluetooth 5.0 USB Adapter CM390 driver, and how do I install it?” This article serves as your complete encyclopedia for the UGREEN CM390. We will cover hardware specifications, step-by-step driver installation for Windows 10 and 11, manual driver methods for legacy systems (Windows 7/8), troubleshooting common errors, and comparing it to other Bluetooth adapters.
Part 1: What is the UGREEN CM390? Before diving into drivers, let’s understand the hardware. The UGREEN CM390 is a nano-sized USB Bluetooth adapter.
Chipset: Realtek RTL8761B (Most common variant) / or sometimes a compatible CSR chipset. Bluetooth Version: 5.0 (Backward compatible with BLE 4.2, 4.0, 3.0, 2.1, 1.2). Data Transfer Rate: Up to 3 Mbps. Effective Range: Up to 20 meters (66 feet) in open space. OS Support: Officially supports Windows 11, Windows 10, Windows 8.1, and Windows 7. Note: It does NOT support macOS, Linux, or Android TVs via USB. The UGREEN Bluetooth 5
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.
Part 2: Do You Really Need a Separate Driver? This is the most confusing part for new users. Here is the truth:
Windows 10 & 11 (Version 2004 and later): In theory, the adapter uses Microsoft’s native Bluetooth stack. When you plug the CM390 in, Windows will automatically install a generic driver. However , the generic driver often lacks advanced features like A2DP (high-quality audio sink) or proper HID (Human Interface Device) support. For full functionality, you need the official Realtek driver. Windows 7 & 8: Absolutely yes. You need the driver. The OS does not have native Bluetooth 5.0 drivers. Without the driver, the device will appear as "Unknown Device" or "Bluetooth Peripheral Device" with a yellow exclamation mark in Device Manager. Linux: Generally works out of the box with kernel 5.0+, but if you are a Linux user, you likely don’t need this article. macOS: Not supported. Do not buy this for a Hackintosh or Mac. Driver Installation Guide The driver requirements for the
Conclusion: Even if Windows auto-installs a driver, you should manually install the official UGREEN/Realtek driver for stability.
Part 3: How to Download the Official UGREEN Bluetooth 5.0 USB Adapter CM390 Driver Warning: Do not download drivers from third-party "driver update" websites. They often bundle malware or outdated files. Always use official sources. Method 1: The Official UGREEN Support Website (Recommended)