UGREEN USB Bluetooth 5.3 Dongle Adapter User Manual

1. Introduction

The UGREEN USB Bluetooth 5.3 Dongle Adapter (Model CM591) is designed to provide seamless wireless connectivity for your personal computer. This compact adapter enables your PC to connect with various Bluetooth-enabled devices such as speakers, mice, keyboards, headphones, and game controllers. Featuring the latest Bluetooth 5.3 technology, it offers enhanced performance with lower latency, improved energy efficiency, and stable data transmission over an extended range.

2. Setup Guide

Follow these steps to install and set up your UGREEN USB Bluetooth 5.3 Dongle Adapter:

1. Insert the Adapter: Plug the UGREEN USB Bluetooth 5.3 Dongle Adapter into an available USB 2.0 port on your computer.



2. Driver Installation:
   • For Windows 8.1, Windows 10, and Windows 11, the necessary drivers should install automatically upon insertion.
   • If the drivers do not install automatically, or if you experience issues, please visit the official UGREEN website for the latest driver downloads specific to your operating system.
3. Verify Installation: After installation, check your computer's Device Manager to ensure the Bluetooth adapter is recognized and functioning correctly. You should see a Bluetooth device listed without any error indicators.
4. Enable Bluetooth: Ensure Bluetooth is enabled in your computer's settings.
5. Pairing Devices:
   • Put your Bluetooth device (e.g., headphones, mouse, keyboard) into pairing mode.
   • On your computer, go to Bluetooth settings and search for new devices.
   • Select your device from the list and follow any on-screen prompts to complete the pairing process.

3. Operating Instructions

The UGREEN USB Bluetooth 5.3 Dongle Adapter enhances your PC's wireless capabilities:

3.1 Key Features

• Bluetooth 5.3 Technology: Experience lower latency, improved energy efficiency, and stable transmission.
• Extended Range: Enjoy wireless freedom with a transmission distance of up to 20 meters (65 feet) in an open environment.
• Multi-Device Connectivity: Connect up to 5 Bluetooth devices simultaneously to your PC.

3.2 Connecting Multiple Devices

Once the adapter is installed, you can connect various Bluetooth peripherals:

• Audio Devices: Pair Bluetooth headphones or speakers for wireless audio streaming.
• Input Devices: Connect Bluetooth mice and keyboards for a clutter-free workspace.
• Game Controllers: Use Bluetooth game controllers for an immersive gaming experience.
• Printers: Connect compatible Bluetooth printers for wireless printing.

4. Maintenance

To ensure optimal performance and longevity of your UGREEN USB Bluetooth 5.3 Dongle Adapter, please follow these simple maintenance guidelines:

• Keep Clean: Regularly wipe the adapter with a soft, dry cloth to remove dust and debris. Avoid using liquid cleaners.
• Store Properly: When not in use, store the adapter in a cool, dry place away from direct sunlight and extreme temperatures.
• Handle with Care: Avoid dropping the adapter or subjecting it to strong impacts, which could damage internal components.
• Avoid Water: Do not expose the adapter to water or other liquids.

5. Troubleshooting

If you encounter issues with your UGREEN USB Bluetooth 5.3 Dongle Adapter, refer to the following common problems and solutions:

5.1 Connectivity Issues

• Device Not Found: Ensure your Bluetooth device is in pairing mode and within the 20-meter transmission range. Check for any obstructions that might interfere with the signal.
• Intermittent Connection: Try moving closer to the adapter or removing potential sources of interference (e.g., Wi-Fi routers, other wireless devices). Ensure your computer's USB port is functioning correctly.
• Cannot Connect to Multiple Devices: While the adapter supports up to 5 simultaneous connections, performance may vary depending on the devices and their usage. Try disconnecting and reconnecting devices one by one.

5.2 Driver Problems

• Adapter Not Recognized: Verify that the adapter is securely plugged into a working USB port. Check Device Manager for any unknown devices or error messages. Reinstall the drivers from the official UGREEN website if necessary.
• Outdated Drivers: Ensure your Bluetooth drivers are up to date. You can usually update them through Windows Update or by downloading the latest version from the UGREEN support page.

5.3 Compatibility Notes

• Operating System: This adapter is officially compatible with Windows 8.1, Windows 10, and Windows 11. It does not officially support macOS, Linux (including Ubuntu), or other operating systems.
• Vehicle-Mounted Use: The adapter does not support vehicle-mounted applications.

6. Specifications

Detailed technical specifications for the UGREEN USB Bluetooth 5.3 Dongle Adapter (CM591):

7. User Tips

• Ease of Use: Many users report that the adapter works flawlessly and is fast and reliable, often requiring minimal setup on supported Windows systems.
• Operating System Limitation: Be aware that official support is limited to Windows 8.1, 10, and 11. If you are using Linux (e.g., Ubuntu) or macOS, the adapter may not function as expected or at all.
• Driver Updates: For best performance and compatibility, always ensure your operating system and Bluetooth drivers are up to date.

8. Warranty and Support

For detailed warranty information and further technical support, please refer to the official UGREEN website or contact UGREEN customer service.

A comprehensive user manual in PDF format is available for download. You can access it directly via this link: UGREEN USB Bluetooth 5.3 Dongle Adapter User Manual (PDF).