1. Introduction
The UGREEN USB Bluetooth 5.4 Adapter (Model CM748) provides a seamless wireless connection for your PC, enabling communication with various Bluetooth-enabled devices. Featuring the latest Bluetooth 5.4 technology, this adapter offers lower latency, enhanced stability, and an extended transmission range. It is designed to upgrade your computer's Bluetooth capabilities for a more efficient and enjoyable wireless experience.
2. Package Contents
The package for your UGREEN USB Bluetooth 5.4 Adapter should contain the following item:
- 1 x UGREEN USB Bluetooth 5.4 Adapter (Model CM748)
3. Product Overview
The UGREEN USB Bluetooth 5.4 Adapter features a compact design with an external, adjustable antenna for optimal signal reception and transmission. It includes an LED indicator to show its operational status.
Adjustable External Antenna
The adapter's antenna can be rotated 180° vertically and 90° laterally, allowing you to adjust it for the best possible signal strength and range in your environment.
Clear Work Status Indicator
A white LED indicator light on the adapter stays illuminated when the device is actively working, providing a clear visual cue of its operational status.
4. Setup Instructions
Follow these steps to install and set up your UGREEN USB Bluetooth 5.4 Adapter:
System Compatibility
The adapter supports Windows 7, 8.1, 10, and 11. For Windows 8.1, 10, and 11, it is generally Plug & Play. For Windows 7, a driver installation is required.
Installation Steps
- Disable Built-in Bluetooth (if applicable): If your PC has a built-in Bluetooth module, it is recommended to disable it to avoid conflicts. To do this:
- Right-click on "This PC" and select "Manage".
- Navigate to "Device Manager" > "Bluetooth".
- Right-click on your PC's built-in Bluetooth (e.g., "Intel(R) Wireless Bluetooth") and select "Disable device".
- Plug in the Adapter: Insert the UGREEN USB Bluetooth 5.4 Adapter into an available USB port on your PC.
- Driver Installation:
- Windows 8.1/10/11: The adapter should be recognized automatically, and drivers will install via Plug & Play.
- Windows 7: You will need to install the necessary drivers. Please refer to the UGREEN official website for the latest drivers for Model CM748.
- Connect Bluetooth Devices: Once the adapter is recognized and drivers are installed, you can proceed to connect your Bluetooth devices.
5. Operating Instructions
Once the UGREEN USB Bluetooth 5.4 Adapter is successfully installed, you can connect various Bluetooth devices to your PC.
Connecting Devices
Use your computer's Bluetooth settings to search for and pair with new devices. The adapter supports simultaneous connection of up to 5 devices, allowing for a comprehensive wireless setup.
Compatible Devices and Usage Scenarios
The adapter is compatible with a wide range of USB A-enabled devices (PC, Laptop) and Bluetooth devices. Enjoy a wireless lifestyle with applications such as:
- Bluetooth Headsets/Speakers: For music and audio streaming.
- Bluetooth Keyboards/Mice: For wireless input and control.
- Game Controllers: For an untethered gaming experience.
- Cell Phones: For data transfer and connectivity.
Extended Transmission Range
Experience remote transmission up to 120 meters (393 feet) in one-way, barrier-free environments, providing flexibility in device placement.
6. Troubleshooting
Adapter Not Working / Device Connection Issues
- Check Compatibility: Ensure your operating system is Windows 7, 8.1, 10, or 11.
- Disable Built-in Bluetooth: If your PC has an existing Bluetooth module, disable it in Device Manager before plugging in the UGREEN adapter. This prevents driver conflicts. (Refer to Setup Instructions, Step 1).
- Replug the Adapter: Sometimes simply unplugging and replugging the adapter can resolve detection issues.
- Driver Installation: For Windows 7, ensure the correct drivers are installed from the UGREEN official website. For Windows 8.1/10/11, verify that the system has successfully installed the Plug & Play drivers. Check Device Manager for any error symbols next to the Bluetooth adapter entry.
- Test with Different USB Port: Try plugging the adapter into a different USB port on your computer.
- Restart PC: A system restart can often resolve temporary software glitches.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | UGREEN |
| Model Number | CM748 |
| Product Name | USB Bluetooth 5.4 Adapter |
| USB Interface | USB 2.0 (compatible with USB 3.0) |
| Bluetooth Version | 5.4 |
| Built-in Chip | BR8654A02 |
| Transmission Distance | 120m / 393ft (one-way, barrier-free) |
| Bluetooth Protocol | HSP, A2DP, AVRCP, DID, GAVDP, IOPT, PAN, HID |
| Operating Frequency | 2.400GHz-2.4835GHz |
| Compatible Systems | Windows 8.1/10/11 (Plug & Play), Windows 7 (Driver Needed) |
| Max. RF Output Power | 4dBm (conducted) |
| Supply Voltage | DC 5V ±0.25V |
| Antenna Type | External |
| Certification | FCC, CE, SRRC, TELEC, UKCA, IC |
8. User Tips
- Optimal Placement: For the best transmission range and stability, ensure the adapter's external antenna is positioned without obstructions. Adjust its angle (180° vertical, 90° lateral) to find the strongest signal.
- Minimize Interference: Keep the adapter away from other wireless devices (like Wi-Fi routers, cordless phones) that operate on the 2.4GHz frequency band to avoid potential interference.
- Driver Updates: Periodically check the UGREEN official website for updated drivers, especially after major operating system updates, to ensure optimal performance and compatibility.
- Power Management: Ensure your USB ports are providing stable power. Avoid connecting the adapter through unpowered USB hubs if you experience connectivity issues.
9. Warranty and Support
UGREEN products are designed for reliability and performance. This product comes with a standard manufacturer's warranty. For detailed warranty information, technical support, or to download the latest drivers, please visit the official UGREEN website or contact their customer service directly.
Please retain your proof of purchase for warranty claims.
