Sound Card UGREEN CM772 USB-C to 3.5mm with USB-C/USB-A connectivity

The UGREEN CM772 USB-C to 3.5mm external sound card is a compact audio adapter that provides a standard 3.5mm headphone and microphone interface for devices with USB-C or USB-A ports. It enables analog audio output and voice input through a single dongle, making it possible to use headsets and microphones with laptops, tablets and desktop PCs that lack a working 3.5mm jack or have removed the analog port. The device is plug-and-play with typical operating systems and is designed for straightforward integration into everyday audio setups.

Advantages

This external sound card offers straightforward connectivity via USB-C and includes backward compatibility with USB-A through an adapter or cable, ensuring broad device support. Its compact form factor makes it easy to carry and store, while the single 3.5mm combo jack supports both headphone output and microphone input without requiring additional cables. The UGREEN CM772 is intended to restore or add analog audio capability reliably, with low maintenance and immediate readiness after connection.

Suitable for

• Connecting headsets with 3.5mm plugs to laptops and tablets without a headphone jack
• Replacing a faulty analog audio port on a desktop or laptop
• Using external microphones for voice calls, streaming, or online meetings
• Portable audio use with USB-C smartphones, tablets and ultrabooks (when supported)

Key specifications

• Interface: USB-C input with compatibility for USB-A connection
• Output/input: 3.5mm TRRS combo audio jack for headphones and microphone
• Form factor: compact external USB audio adapter
• Compatibility: plug-and-play with common desktop and mobile operating systems
• Use case: stereo audio playback and mono/stereo microphone capture depending on headset

How to use

Connect the UGREEN CM772 to a host device using the USB-C connector or an appropriate USB-A connection if required. Plug a 3.5mm headset or microphone into the combo jack. The host device should recognize the adapter automatically and switch audio input/output to the external sound card under system audio settings. If necessary, select the external audio device as the default playback and recording device in the operating system or communication app. No driver installation is normally required for standard platforms.

Usage recommendations

For stable audio performance, use a headset with a standard TRRS 3.5mm plug and verify the headset wiring if microphone or remote control functions do not work. Keep the adapter connected directly to the host or use a short extension to minimize signal loss and interference. When using with mobile devices, confirm that the specific smartphone or tablet model supports external USB audio devices over USB-C.