Driver Exclusive: Ugreen Bluetooth 5.0 Usb Adapter Cm390

UGREEN Bluetooth 5.0 USB Adapter (CM390) , the driver can be downloaded directly from the official UGREEN Download Center by searching for product model Driver Installation Guide

While Windows 10 and 11 often recognize the adapter automatically, manual installation is required for full functionality on older systems like Windows 7. Official Download : Visit the UGREEN Support Page to find the latest version. Alternative Source

: A verified driver package (approx. 73 MB) is also hosted on OEMDrivers Installation Steps Plug the adapter into a USB 2.0 or 3.0 port from the downloaded folder or provided CD. Follow the on-screen prompts and restart your computer once finished. Troubleshooting : If you have built-in Bluetooth, you must disable it in the Device Manager before the UGREEN adapter will work. Key Features UGREEN CM390

is a compact solution for adding wireless connectivity to PCs that lack native Bluetooth. UGREEN Bluetooth 5.0 Adapter CM390 Drivers 29-Aug-2024 —

Overview

The Ugreen Bluetooth 5.0 USB Adapter CM390 is a compact, plug-and-play device that allows users to add Bluetooth 5.0 capabilities to their computers or laptops. The adapter uses the RTL8761BU chipset, which supports Bluetooth 5.0 and is backward compatible with Bluetooth 4.2, 4.1, and 4.0. ugreen bluetooth 5.0 usb adapter cm390 driver

Key Features

• Bluetooth 5.0 technology for faster data transfer rates and longer range
• Compact design with a small footprint, making it easy to carry around
• Plug-and-play installation, no need to install drivers for most operating systems
• Supports wireless connections for devices such as headphones, speakers, mice, keyboards, and more
• Compatible with Windows, macOS, and Linux operating systems

Driver Overview

The Ugreen Bluetooth 5.0 USB Adapter CM390 driver is a software component that enables the operating system to communicate with the adapter. The driver is responsible for managing the adapter's functionality, including:

• Detecting and connecting to Bluetooth devices
• Managing data transfer between the adapter and connected devices
• Providing a user interface for configuring adapter settings

Driver Features and Performance

• Easy Installation: The driver is relatively easy to install, and users can follow the on-screen instructions to complete the process.
• Device Compatibility: The driver supports a wide range of Bluetooth devices, including headphones, speakers, mice, keyboards, and more.
• Connection Stability: The driver provides a stable connection to Bluetooth devices, with minimal dropped connections or data transfer issues.
• Data Transfer Speed: The driver supports fast data transfer speeds of up to 3 Mbps, making it suitable for applications such as file transfers and audio streaming.

Operating System Compatibility

The Ugreen Bluetooth 5.0 USB Adapter CM390 driver is compatible with a range of operating systems, including:

• Windows 10 (32-bit and 64-bit): The driver is compatible with Windows 10, including the latest updates.
• Windows 8.1 (32-bit and 64-bit): The driver is compatible with Windows 8.1, including the latest updates.
• Windows 7 (32-bit and 64-bit): The driver is compatible with Windows 7, including the latest updates.
• macOS: The driver is compatible with macOS High Sierra (10.13) and later versions.
• Linux: The driver is compatible with Linux distributions such as Ubuntu, Debian, and Fedora.

Common Issues and Troubleshooting

Some common issues that users may experience with the Ugreen Bluetooth 5.0 USB Adapter CM390 driver include:

• Connection issues: Users may experience difficulties connecting to Bluetooth devices or maintaining a stable connection.
• Driver installation issues: Users may experience issues installing the driver, such as errors during installation or failure to detect the adapter.
• Device compatibility issues: Users may experience issues with certain Bluetooth devices, such as devices not being detected or not functioning as expected.

To troubleshoot these issues, users can try:

• Restarting the adapter and device: Restarting the adapter and device may resolve connectivity issues.
• Updating the driver: Updating the driver to the latest version may resolve compatibility issues or bugs.
• Disabling and re-enabling the adapter: Disabling and re-enabling the adapter may resolve connectivity issues.

Conclusion

The Ugreen Bluetooth 5.0 USB Adapter CM390 driver is a reliable and feature-rich software component that enables users to add Bluetooth 5.0 capabilities to their computers or laptops. The driver provides a stable connection to Bluetooth devices, supports fast data transfer speeds, and is compatible with a range of operating systems. While some users may experience issues with the driver, these issues can often be resolved through troubleshooting steps. Overall, the Ugreen Bluetooth 5.0 USB Adapter CM390 driver is a good option for users looking to add Bluetooth 5.0 capabilities to their devices.

Rating: 4.5/5

Recommendation: The Ugreen Bluetooth 5.0 USB Adapter CM390 driver is recommended for users who need to add Bluetooth 5.0 capabilities to their computers or laptops. It is particularly suitable for users who want a compact, plug-and-play adapter with a stable connection and fast data transfer speeds.

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 "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. UGREEN Bluetooth 5

Installation notes (Windows example)

1. Plug adapter into USB-A port (prefer rear-panel USB on desktops for stable connection).
2. Wait ~30–60s for automatic driver install; check Device Manager → “Bluetooth” or “Other devices”.
3. If device shows with warning or as unknown, download vendor driver and run installer or update driver manually (right-click → Update driver → Browse).
4. After driver install, enable Bluetooth in Settings → Devices → Bluetooth & other devices.
5. Pair devices via Windows Bluetooth settings.

Step 2: Direct Download from UGREEN

As of 2025, UGREEN hosts drivers on their Google Drive or static servers. Here is the process:

1. Go to www.ugreen.com/pages/download-center.
2. Search for “CM390” or “Bluetooth 5.0 Adapter”.
3. Download the file named like UGREEN_Bluetooth_5.0_Driver_CM390.zip.
4. Inside, you will find:
   • Setup.exe (Driver installer for Windows 7/8/10)
   • README.txt with manual installation instructions.
   • Driver folder with .inf files.