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Compact black box with one HDMI input and three outputs

SMUGDESK

SMUGDESK 1x3 HDMI Splitter 4K@30Hz 3D

SKU CH-J38K-7Q3HG

Distributes one HDMI source to three mirrored displays at up to 4K@30Hz with 3D support

  • Mirror one HDMI source to three displays simultaneously
  • Supports 4K@30Hz and 3D video for high-definition playback
  • Built-in amplification chip keeps signals stable over long cable runs
  • Plug-and-play setup requires no drivers or software installation
  • Works with HDTVs, consoles, projectors and other HDMI devices

1×3 HDMI mirror splitter

This 1×3 HDMI splitter takes a single HDMI source and mirrors identical video and audio to three displays simultaneously. It is suited for home-theatre enthusiasts, presenters, educators or installers who need the same picture on multiple screens without switching between sources. The device handles one input and three outputs in a compact, driver-free package.

Plug-and-play build with signal amplification

A lightweight casing houses a built-in amplification chip that reduces signal attenuation for stable long-distance transmission. Certified standard HDMI cables connect directly to the three output ports, and no software or driver installation is required. The plug-and-play design means the unit is ready moments after power and cables are attached, making it practical for meeting rooms, exhibitions or classroom setups.

4K at 30 Hz with 3D support

The splitter passes resolutions up to 4K×2K at 30 Hz and supports 3D video formats, delivering clear audiovisual output across all three mirrored displays. It does not function as a matrix switcher, so every connected screen shows the same content at all times. Buyers who need independent content on each display or higher refresh rates at 4K should look for a different solution.

Highlights

  • Mirror one HDMI source to three displays simultaneously
  • Supports 4K@30Hz and 3D video for high-definition playback
  • Built-in amplification chip keeps signals stable over long cable runs
  • Plug-and-play setup requires no drivers or software installation
  • Works with HDTVs, consoles, projectors and other HDMI devices

Specifications

No published specifications for this item yet.

Questions about this item

What does the HDMI 1×3 splitter cap at for 4K output?

The splitter mirrors one source to three displays at up to 4K@30Hz and also passes 3D video formats.

What cables and power does the unit need to fit into a standard HDMI chain?

It uses three standard HDMI output ports and one input; certified HDMI cables are recommended and the device draws power from the source or an included USB supply.

How do I set up the splitter and what step do people often miss?

Connect the source to the input, attach three displays to the outputs, power the unit, then ensure every display is set to the same mirrored resolution so the single EDID is accepted.

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