
UGREEN USB-C to HDMI 4K@30Hz Cable – 1.5M | 30841
The UGREEN 30841 (model MM121) is a 1.5 m white cable with a USB-C plug on one end and an HDMI plug on the other. It carries video and audio from a USB-C laptop, tablet or phone to an HDMI TV, monitor or projector, at resolutions up to 3840 × 2160 (4K) at 30 Hz, and also works at lower resolutions such as 1080p.



4K at 30 Hz: The cable supports up to 3840 × 2160, which is why the HDMI plug is marked "4K×2K". At 4K the picture refreshes 30 times per second; this cable does not output 4K at 60 Hz.
Mirror or extend your screen: You can show the same picture on both screens (mirror mode), or use the TV or monitor as a second screen beside your laptop (extended mode). On supported phones and tablets it also works with Samsung DeX and Huawei PC Mode.
Plug and play: No drivers and no extra adapter are needed. Plug the USB-C end into your device and the HDMI end into the display, then choose the HDMI input on the TV or monitor.
Gold-plated connectors and shielding: Both plugs are gold-plated and the cable has multiple layers of shielding inside, which help keep the signal stable along the 1.5 m length.
Good to know
Your device's USB-C port must support video output (DisplayPort Alternate Mode). If the USB-C port only charges or transfers data, it will not send a picture through this cable. The maximum refresh rate at 4K is 30 Hz, not 60 Hz.
Technical Specifications
| Brand | UGREEN |
| Item Number | 30841 |
| Model | MM121 |
| Connectors | USB-C (male) to HDMI (male), gold-plated |
| Max Resolution | 3840 × 2160 (4K) @ 30 Hz |
| Display Modes | Mirror, Extend |
| Source Requirement | USB-C port with DisplayPort Alternate Mode |
| Drivers | Not required (plug and play) |
| Length | 1.5 m |
| Color | White |
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