
UGREEN-OS Type C Male To 3.5mm DAC Amplifier Hi-Res Audio with Chip | 90217
The UGREEN CM545 (item 90217) is a USB-C to 3.5mm headphone adapter with a built-in DAC and amplifier. It turns the digital audio from a USB-C phone, tablet or computer into an analog signal for wired headphones, and supports audio up to 32-bit/384 kHz.


Hi-Res Audio certified: The adapter carries the Hi-Res Audio certification and handles audio up to 32-bit/384 kHz. This means high-resolution music files can be played at their full quality instead of being reduced by a basic adapter.
PCM, DSD and MQA decoding: Besides standard PCM audio, the adapter decodes DSD and MQA formats. You can play these file types from a compatible music app directly through your wired headphones.
Format indicator light: A light on the adapter changes colour according to the audio format being played. A quick look tells you whether you are listening to standard PCM, high-resolution PCM, DSD or MQA audio.
16Ω to 600Ω headphone support: The output adapts to headphone loads from 16Ω to 600Ω, so it can drive everyday earphones as well as higher-impedance headphones.
Good to know
This is an audio adapter only: it has one USB-C plug and one 3.5mm headphone jack, with no charging port.
Technical Specifications
| Model | CM545 |
| Item No. | 90217 |
| Connectors | USB-C male to 3.5mm female |
| Max Audio Resolution | 32-bit / 384 kHz |
| Supported Formats | PCM, DSD, MQA |
| Headphone Impedance | 16Ω – 600Ω |
| Certification | Hi-Res Audio |
| Indicator | Colour light by audio format |
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