
UGREEN USB Type C To HDMI 2.1 Adapter 8K@60Hz | 50338
The UGREEN CM491 (item 50338) is a USB-C to HDMI 2.1 adapter. It connects a laptop, tablet or phone with a video-capable USB-C port to a monitor, TV or projector with an HDMI input, at up to 8K@60Hz or 4K@240Hz with a bandwidth of up to 48Gbps.

8K@60Hz and 4K@240Hz over HDMI 2.1: The adapter supports resolutions up to 8K at 60Hz and 4K at up to 240Hz, with up to 48Gbps of bandwidth. On a high-refresh monitor this gives smooth motion in games and video, and on an 8K or 4K screen it shows fine detail.
HDR10+, HDCP 2.3, Dolby Atmos and 3D: HDR10+ improves the display of bright and dark areas on compatible screens, and HDCP 2.3 lets you play protected content. The adapter also passes Dolby Atmos sound and 3D content to devices that support them.
Mirror or extend: In clone mode the external screen shows the same picture as your device, which is useful for presentations and meetings. In extended mode it becomes a second desktop, so you have more space for windows.

Aluminium shell and nylon braided cable: The adapter has an aluminium housing, nickel-plated connectors and a short 15 cm nylon braided cable. This makes it durable for daily use and easy to carry in a laptop bag.
Who it's for / Works with
Laptops, tablets and phones with a USB-C port that supports video output (DP Alt Mode or Thunderbolt), connected to HDMI monitors, TVs and projectors.
Good to know
- One-way only: from a USB-C source to an HDMI display. It does not work from an HDMI source to a USB-C screen.
- Your device's USB-C port must support video output (DP Alt Mode or Thunderbolt). USB-C ports that only charge or only transfer data will not output video.
- According to UGREEN, MacBook models output at most 4K@60Hz through USB-C to HDMI adapters because of their own hardware limits.
Technical Specifications
| Brand | UGREEN |
| Model | CM491 |
| Item No. | 50338 |
| Input | USB-C male |
| Output | HDMI female |
| HDMI standard | HDMI 2.1 |
| Resolution | 8K@60Hz, 4K@240Hz |
| Bandwidth | Up to 48Gbps |
| Supported | HDR10+, HDCP 2.3, Dolby Atmos, 3D |
| Direction | One-way, USB-C to HDMI |
| Cable | 15 cm, nylon braided |
| Housing | Aluminium |
| EAN | 6941876283200 |
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