LORDWORLD USB-C to Dual HDMI Adapter 4K 60Hz 30Hz

Dual 4K output for USB-C laptops

This adapter connects two HDMI displays to a single USB-C port that supports DisplayPort Alternate Mode. It mirrors or extends the desktop across both screens at up to 3840 x 2160 resolution. The device targets professionals such as photographers, programmers and data analysts who need extra screen space for simultaneous tasks. macOS users see mirrored output on the two external monitors, while Windows users can drive three distinct images including the built-in display.

Plug-and-play with DP Alt Mode

No driver installation or external power supply is required; the adapter works immediately on any host that implements DP Alt Mode over USB-C. A common issue is that not all USB-C ports provide video-out capability, so the adapter will not function on systems lacking Alternate Mode support. When only one HDMI port is used the output reaches 60 Hz, but driving both ports simultaneously drops the refresh rate to 30 Hz. Using an HDMI 2.0 or better cable is necessary to achieve the stated 4K resolutions.

Check your port and cable before ordering

Verify that your laptop, tablet or phone explicitly lists DisplayPort Alternate Mode support on its USB-C port, as charging-only or data-only ports will not deliver video. Confirm the host device can output 3840 x 2160 resolution, otherwise the adapter will downscale automatically. Ensure you have two HDMI 2.0-compatible cables for dual-monitor operation, and note that macOS only mirrors the two external screens rather than extending them independently.