LORDWORLD
LORDWORLD USB 3.0 to 4K HDMI Display Adapter 3840 x 2160 @ 30 Hz Aluminum Housing JUA354
Adds a second 4K display at 3840 × 2160 @ 30 Hz via USB 3.0 Type-A with an aluminium housing
- Add a second screen via USB 3.0 and HDMI
- 4K UHD video at 3840 x 2160 @ 30 Hz
- View large files across two displays without overlap
- Works with Mac and Windows after driver install
- Plug into USB 2.0 or 3.0 and connect a monitor in seconds
Add a 4K display via USB 3.0
This adapter connects a second monitor or projector to a USB 3.0 Type-A port using an HDMI cable. It supports a maximum resolution of 3840 x 2160 at 30 Hz. The aluminium housing aids heat dissipation during extended use. A driver must be installed on both Windows and macOS before the display becomes active.
Driver installation and USB 2.0 fallback
The product requires a driver download on the host computer; it is not a purely plug-and-play device. Backward compatibility with USB 2.0 ports is provided, though the 4K 30 Hz output depends on the higher bandwidth of USB 3.0. No extra software, cables or power supplies are bundled with the adapter.
Maximum output resolution of 3840 x 2160 at 30 Hz
The single specification that determines suitability is the 3840 x 2160 at 30 Hz limit over HDMI. Buyers needing 60 Hz at 4K, higher refresh rates at lower resolutions, or multiple additional displays from one adapter cannot use this device. It adds exactly one external screen.
Highlights
- Add a second screen via USB 3.0 and HDMI
- 4K UHD video at 3840 x 2160 @ 30 Hz
- View large files across two displays without overlap
- Works with Mac and Windows after driver install
- Plug into USB 2.0 or 3.0 and connect a monitor in seconds
Specifications
| Brand | LORDWORLD |
|---|
Questions about this item
Will the HDMI port on the JUA354 adapter need replacement after heavy daily use?
The HDMI female connector is a passive port with no moving parts, so it does not wear out under normal insertion cycles.
What limits 4K output to 30 Hz instead of 60 Hz on this adapter?
The USB 3.0 bandwidth caps the video stream at 3840 x 2160 @ 30 Hz; higher refresh rates are not supported.
Does the aluminum housing get hot when the adapter drives a 4K display all day?
The aluminum case acts as a heatsink and stays warm but within safe operating temperatures during continuous 4K 30 Hz output.
New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.



