The UGREEN CM748 is a compact USB Bluetooth adapter designed to add or upgrade Bluetooth connectivity on compatible Windows PCs and laptops. The commonly listed CM748 SKU 35058 uses Bluetooth 5.4, while UGREEN also sells newer CM748 revisions under different codes, including a Bluetooth 6.0 version. For TechShek.pk, it is important to match the exact SKU on your stock before publishing the Bluetooth version.

The 35058 version provides a USB-A connection, supports Bluetooth Low Energy (BLE) and Enhanced Data Rate (EDR), offers a claimed range of up to 20 meters in an unobstructed environment, and can connect with up to five Bluetooth devices. It supports peripherals such as headphones, speakers, keyboards, mice, game controllers and smartphones.

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Detailed Description

Add Bluetooth to Your Desktop or Laptop

The UGREEN CM748 provides an easy way to add Bluetooth functionality to a computer that doesn't have built-in Bluetooth or whose existing Bluetooth hardware is outdated.

Instead of installing an internal PCIe card or replacing your motherboard, simply connect the small CM748 adapter to a USB port and pair compatible wireless devices.

It is particularly useful for desktop PCs because many desktop motherboards do not include Bluetooth.

You can use it to connect:

• Bluetooth headphones
• Wireless earbuds
• Bluetooth speakers
• Wireless keyboards
• Wireless mice
• Game controllers
• Smartphones
• Other compatible Bluetooth peripherals

UGREEN lists support for multiple device categories and up to five connected Bluetooth devices.

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Bluetooth 5.4 Connectivity

The CM748 35058 uses Bluetooth 5.4, providing a modern wireless connection for compatible PCs.

Bluetooth 5.4 is designed to improve efficiency and connectivity compared with older Bluetooth generations while maintaining compatibility with earlier Bluetooth versions.

The CM748 is also backward compatible with earlier Bluetooth versions, allowing you to continue using many existing Bluetooth accessories.

UGREEN's documentation lists Bluetooth 5.4 for the CM748 35058, while its newer CM748 75073 revision is marketed as Bluetooth 6.0.

Important: Bluetooth version can vary by CM748 SKU/revision. The specifications below refer to the Bluetooth 5.4 CM748 35058 version.

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Up to 20-Meter Wireless Range

The CM748 is specified for a transmission distance of up to 20 meters / 66 feet in an unobstructed environment.

Actual range can vary depending on:

• Walls
• Furniture
• Metal objects
• Other wireless devices
• Computer placement
• Connected Bluetooth device
• Radio interference

For the best results, keep the adapter and connected Bluetooth device within a reasonable line-of-sight distance where possible.

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Connect Up to Five Bluetooth Devices

The CM748 can connect with up to five Bluetooth devices, making it useful for a complete wireless workstation.

For example, you can pair:

1. Bluetooth keyboard
2. Bluetooth mouse
3. Game controller
4. Smartphone
5. Headset

However, there is an important limitation for audio: if two Bluetooth audio output devices such as headphones or speakers are connected simultaneously, only one audio output device can function at a time according to the manual.

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Connect Wireless Headphones and Earbuds

The CM748 is an easy solution for desktop computers without built-in Bluetooth audio support.

Connect your:

• TWS earbuds
• Bluetooth headphones
• Wireless headset
• Bluetooth speaker

and use them with a compatible Windows computer.

Supported Bluetooth profiles include A2DP, HSP and AVRCP, covering common Bluetooth audio and control functionality.

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Keyboard and Mouse Connectivity

The adapter is also suitable for Bluetooth input devices.

You can connect compatible:

• Wireless keyboards
• Wireless mice
• Trackpads
• Controllers
• Other HID peripherals

The CM748 supports profiles including HID and HOGP, making it suitable for common Bluetooth human-interface devices.

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Perfect for Desktop PCs

The CM748 is particularly useful for desktop computers.

If your PC has:

• No Bluetooth
• An old Bluetooth adapter
• A motherboard without wireless connectivity

you can add Bluetooth without opening the computer case.

Simply plug the adapter into USB and configure Bluetooth in Windows.

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Compact USB Design

The CM748 has a small, minimalist design that takes up very little space.

The documented dimensions are approximately:

30 × 15 × 5 mm

with a weight of around 4 grams for the adapter itself.

This makes it easy to leave plugged into a desktop or laptop without the bulk of a traditional Bluetooth adapter.

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USB-A Interface

The CM748 uses a standard USB-A host connection.

This makes it suitable for most conventional desktop PCs and many laptops that still have USB-A ports.

The documented CM748 35058 specification identifies the interface as USB 2.0.

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Plug & Play on Supported Windows Versions

The CM748 is designed primarily as a Windows Bluetooth host adapter.

UGREEN lists support for:

• Windows 11
• Windows 10
• Windows 8.1
• Windows 7

Windows 8.1/10/11 are listed for plug-and-play use, while Windows 7 requires the appropriate driver.

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Built for Wireless Audio

With Bluetooth audio profiles including A2DP, HSP and AVRCP, the CM748 can be used for common Bluetooth audio applications.

This makes it suitable for:

• Music
• Videos
• Online meetings
• Voice communication
• Bluetooth speakers
• Wireless headphones

Actual audio quality depends on the connected device, operating system, Bluetooth profile and codec support.

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Bluetooth Low Energy Support

The CM748 supports Bluetooth Low Energy (BLE) as part of its Bluetooth 5.4 implementation.

BLE is designed for efficient communication with compatible low-power Bluetooth devices.

This can be useful with modern peripherals such as compatible keyboards, mice and other Bluetooth accessories.

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Bluetooth Profiles

The CM748 supports a range of Bluetooth profiles, including:

• A2DP
• HSP
• AVRCP
• HID
• HOGP
• PAN
• GAP
• OPP

These profiles enable compatibility with different categories of Bluetooth devices and functions.

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No Separate Power Adapter

The CM748 draws power directly from the computer's USB port.

There is no battery and no separate power adapter required.

This makes it convenient for:

• Desktop PCs
• Laptops
• Office computers
• Home computers
• Gaming PCs

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Important: Disable Built-In Bluetooth Before Use

If your computer already has built-in Bluetooth, UGREEN's manual recommends disabling the existing Bluetooth adapter before using the CM748.

This helps prevent conflicts between the internal Bluetooth hardware and the external USB adapter.

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Key Features

• UGREEN CM748
• Bluetooth 5.4 version
• SKU 35058
• USB-A interface
• USB 2.0 interface
• Bluetooth Low Energy (BLE)
• Enhanced Data Rate (EDR)
• Up to 20m transmission range in open conditions
• Connect up to 5 Bluetooth devices
• Supports headphones
• Supports earbuds
• Supports Bluetooth speakers
• Supports keyboards
• Supports mice
• Supports game controllers
• Supports smartphones
• A2DP profile
• HSP profile
• AVRCP profile
• HID profile
• HOGP profile
• PAN profile
• GAP profile
• OPP profile
• Windows 11 compatible
• Windows 10 compatible
• Windows 8.1 compatible
• Windows 7 compatible with driver
• Compact nano-style design
• USB powered
• LED indicator
• Plug-and-play on supported Windows versions
• Lightweight 4g adapter

 

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Specifications Chart

Specifications refer specifically to the CM748 35058 Bluetooth 5.4 revision.

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Compatibility Chart

UGREEN's official product information for the 35058 version lists Windows systems rather than macOS.

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UGREEN CM748 vs Basic Bluetooth 5.0 USB Adapter

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Who Should Buy UGREEN CM748?

Desktop PC Users

Perfect for desktop computers that don't have built-in Bluetooth.

Laptop Users

Useful when your laptop's Bluetooth hardware is unavailable, unreliable or outdated.

Wireless Headphone Users

A convenient way to connect Bluetooth headphones or earbuds to a Windows desktop.

Gamers

Useful for compatible Bluetooth controllers, headphones and other peripherals.

Wireless Keyboard & Mouse Users

Add Bluetooth connectivity to a PC without installing an internal wireless card.

Office Users

Connect wireless keyboards, mice, headsets and other Bluetooth accessories.

Users Building a Wireless Workstation

The ability to connect multiple Bluetooth devices makes the CM748 useful for creating a cleaner cable-free setup.

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Frequently Asked Questions

1. What is UGREEN CM748?

UGREEN CM748 is a USB Bluetooth adapter designed to add Bluetooth connectivity to compatible Windows computers.

2. What Bluetooth version does CM748 35058 use?

The 35058 revision uses Bluetooth 5.4.

3. What is the range of UGREEN CM748?

The stated maximum range is 20 meters / 66 feet without obstruction.

4. How many devices can CM748 connect?

It can connect with up to five Bluetooth devices.

5. Can I connect Bluetooth headphones?

Yes.

6. Can I connect Bluetooth earbuds?

Yes.

7. Can I connect a Bluetooth speaker?

Yes.

8. Can I connect a Bluetooth keyboard?

Yes.

9. Can I connect a Bluetooth mouse?

Yes.

10. Can I connect a game controller?

Yes, compatible Bluetooth controllers can be connected to a supported Windows PC.

11. Does CM748 support Bluetooth Low Energy?

Yes. The Bluetooth 5.4 implementation supports BLE.

12. Does it support A2DP?

Yes. A2DP is among the supported Bluetooth profiles.

13. Does it support HID?

Yes.

14. Does it support HOGP?

Yes.

15. Does it support AVRCP?

Yes.

16. Does it work with Windows 11?

Yes.

17. Does it work with Windows 10?

Yes.

18. Does it work with Windows 7?

Yes, but the appropriate driver is required.

19. Does it work with Windows 8.1?

Yes.

20. Does it work with macOS?

The CM748 35058 is not officially listed for macOS, so it should not be purchased specifically for Mac use without confirming support for your exact revision.

21. Does it require a separate power supply?

No. It receives power through USB.

22. Does it have a battery?

No.

23. Is CM748 USB-C?

No. The CM748 uses USB-A.

24. Is CM748 USB 3.0?

The documented 35058 Bluetooth 5.4 version uses USB 2.0.

25. Can two Bluetooth headphones work simultaneously?

The adapter can connect multiple Bluetooth devices, but UGREEN's manual states that when two Bluetooth audio output devices are connected, only one audio output works at a time.

26. Can I leave the adapter permanently plugged into my desktop?

Yes. Its compact design makes it suitable for permanent or semi-permanent use.

27. Does it improve Bluetooth range?

It can provide Bluetooth connectivity with a stated range of up to 20m in unobstructed conditions, but actual performance depends on the environment and connected device.

28. Can I use it with wireless headphones for gaming?

Yes, provided the headphones and Windows system support the necessary Bluetooth profiles.

29. Can I connect my phone to my PC?

Yes, compatible Bluetooth functions such as file transfer and other supported profiles can be used.

30. Do I need to disable built-in Bluetooth?

If your computer already has Bluetooth, UGREEN recommends disabling the built-in Bluetooth adapter before using CM748 to avoid potential conflicts.

31. Is CM748 plug and play?

On supported Windows versions such as Windows 8.1, 10 and 11, UGREEN describes it as plug-and-play. Windows 7 requires a driver.

32. Is Bluetooth 5.4 compatible with older Bluetooth devices?

Yes. Bluetooth 5.4 devices can generally communicate with compatible earlier Bluetooth versions, subject to the supported profiles and features.

33. Can CM748 connect five Bluetooth devices?

Yes, up to five devices are listed, although actual simultaneous functionality depends on the device types and Bluetooth profiles being used.

34. Is UGREEN CM748 good for a desktop PC?

Yes. It is particularly useful for adding Bluetooth to desktop computers without built-in Bluetooth.

35. Is UGREEN CM748 worth buying?

Yes, if you need a compact Bluetooth 5.4 USB adapter for Windows and want support for headphones, speakers, keyboards, mice, controllers and other Bluetooth peripherals.

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Important SKU Note for TechShek.pk

UGREEN uses the CM748 model name across multiple revisions/SKUs. UGREEN's current product information identifies:

• CM748 / 35058 — Bluetooth 5.4
• CM748 / 75073 — Bluetooth 6.0
• Other regional listings also show 45134 under CM748.

So if your physical stock is CM748 35058, the correct product title should be:

UGREEN CM748 35058 USB Bluetooth 5.4 Adapter

I would not advertise it as Bluetooth 6.0 unless the SKU printed on your box is the newer 75073 revision.

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Conclusion

The UGREEN CM748 35058 USB Bluetooth 5.4 Adapter is a compact and practical solution for adding Bluetooth connectivity to Windows desktops and laptops.

With Bluetooth 5.4, up to 20m open-area transmission range, support for up to five Bluetooth devices, BLE, EDR and a broad selection of Bluetooth profiles, it can handle everyday wireless accessories including headphones, earbuds, speakers, keyboards, mice and controllers.

Its tiny USB-A design makes it especially convenient for desktop PCs that lack built-in Bluetooth. For customers searching for UGREEN CM748 Price in Pakistan, it is a simple alternative to installing an internal Bluetooth/Wi-Fi expansion card.

Note: This description refers to the Bluetooth 5.4 CM748 35058 revision.