1. Introducció
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. Contingut del paquet
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. Producte acabatview
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. Instruccions de configuració
Follow these steps to install and set up your UGREEN USB Bluetooth 5.4 Adapter:
Compatibilitat del sistema
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.

Passos d'instal·lació
- Desactiva el Bluetooth integrat (si escau): 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".
- Connecteu l'adaptador: Insert the UGREEN USB Bluetooth 5.4 Adapter into an available USB port on your PC.
- Instal·lació del controlador:
- 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.
- Connecta dispositius Bluetooth: Once the adapter is recognized and drivers are installed, you can proceed to connect your Bluetooth devices.


5. Instruccions de funcionament
Once the UGREEN USB Bluetooth 5.4 Adapter is successfully installed, you can connect various Bluetooth devices to your PC.
Dispositius de connexió
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. Solució De Problemes
Adapter Not Working / Device Connection Issues
- Comprovar la compatibilitat: Ensure your operating system is Windows 7, 8.1, 10, or 11.
- Desactiva el Bluetooth integrat: 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.
- Instal·lació del controlador: 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: Prova de connectar l'adaptador a un port USB diferent de l'ordinador.
- Reiniciar l'ordinador: A system restart can often resolve temporary software glitches.
7. Especificacions
| Característica | Detall |
|---|---|
| Marca | UGREEN |
| Número de model | CM748 |
| Nom del producte | Adaptador USB Bluetooth 5.4 |
| Interfície USB | USB 2.0 (compatible amb USB 3.0) |
| Versió Bluetooth | 5.4 |
| Xip incorporat | BR8654A02 |
| Distància de transmissió | 120m / 393ft (one-way, barrier-free) |
| Protocol Bluetooth | HSP, A2DP, AVRCP, DID, GAVDP, IOPT, PAN, HID |
| Freqüència de funcionament | 2.400 GHz-2.4835 GHz |
| Sistemes compatibles | Windows 8.1/10/11 (Plug & Play), Windows 7 (Driver Needed) |
| Màx. Potència de sortida de RF | 4 dBm (conduït) |
| Subministrament Voltage | DC 5V ±0.25V |
| Tipus d'antena | Extern |
| Certificació | FCC, CE, SRRC, TELEC, UKCA, IC |


8. Consells d'usuari
- Col·locació òptima: 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.
- Minimitzar la interferència: 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.
- Actualitzacions de controladors: Consulteu periòdicament el registre oficial d'UGREEN website for updated drivers, especially after major operating system updates, to ensure optimal performance and compatibility.
- Gestió d'energia: Ensure your USB ports are providing stable power. Avoid connecting the adapter through unpowered USB hubs if you experience connectivity issues.
9. Garantia i Suport
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 weblloc web o contacteu directament amb el seu servei d'atenció al client.
Conserveu el vostre comprovant de compra per a reclamacions de garantia.





