
UGREEN USB External Stereo Sound Adapter | CM129
The UGREEN CM129 is a USB-A external sound card that adds three 3.5mm audio jacks to a computer: a headphone output, a microphone input and a 4-pole CTIA combo jack for headsets. It works without drivers on Windows, macOS and Linux, and has volume and mute buttons on its body.


Three audio jacks: Use the separate headphone and microphone jacks for a PC headset with two plugs, or the 4-pole combo jack for a headset with one plug, such as phone earphones with a microphone.
Plug and play: No driver is needed: plug the adapter into a USB-A port and Windows, macOS or Linux recognises it as a sound card.
Volume and mute buttons: Buttons on the adapter adjust the volume and mute the sound, so you can control audio during calls and meetings without opening the computer settings.
SSS1629 audio chip: The adapter uses the SSS1629 audio chip to handle the sound.
Good to know
The combo jack follows the CTIA 4-pole standard.
Technical Specifications
| Model | CM129 |
| Item No. | 40964 (15 cm version) |
| Input | USB-A (USB 2.0) |
| Jacks | 3.5mm headphone, 3.5mm microphone, 3.5mm CTIA 4-pole combo |
| Chip | SSS1629 |
| Driver | Not required |
| Compatible Systems | Windows, macOS, Linux |
| Controls | Volume, mute |
| Cable Length | 15 cm (#40964) |
| Colour | Black |
© متجر نصر – NaserTech Jordan