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Compact black box with one HDMI input, four HDMI outputs, 3.5mm audio jack and optical SPDIF port

SMUGDESK

SMUGDESK 1x4 HDMI 2.0 Splitter 4K@60Hz Simultaneous Duplicate Display 3.5mm Jack Optical SPDIF Audio Extractor

SKU CH-H2EJ-J524N

Splits one HDMI 2.0 source to four displays at 4K@60Hz while extracting audio through 3.5mm and Optical SPDIF ports

  • Duplicates one source to four screens simultaneously
  • Stable 4K output at 60Hz for vivid detail
  • Extracts audio via 3.5mm jack and optical SPDIF
  • External DC power keeps all four ports stable
  • Plug-and-play with consoles, PCs and media players

One-to-Four HDMI 2.0 Splitter

This SMUGDESK unit takes a single HDMI source and duplicates it across four displays at the same time. It supports 4K resolution at 60 Hz for sharp, synchronised playback on every screen. The device is built for commercial signage, conference rooms or home setups that need identical content on multiple monitors. No drivers are required for basic operation.

Plug-and-Play Integration

Connect the source to the single input and route the four outputs to TVs, projectors or monitors. An external DC power adapter is included to maintain stable voltage when all four ports are active. The splitter works with Blu-ray players, game consoles, PCs and media boxes without extra configuration. It frees the source device from driving multiple displays directly.

Audio Extraction and Stable Power

Embedded audio is separated through a 3.5 mm analogue jack and an Optical SPDIF Toslink port for digital surround sound. This lets you feed headphones, soundbars or AV receivers independently of the displays. The dedicated power supply prevents signal flicker or drop-outs during continuous, full-load use. The unit runs silently with no moving parts.

Highlights

  • Duplicates one source to four screens simultaneously
  • Stable 4K output at 60Hz for vivid detail
  • Extracts audio via 3.5mm jack and optical SPDIF
  • External DC power keeps all four ports stable
  • Plug-and-play with consoles, PCs and media players

Specifications

No published specifications for this item yet.

Questions about this item

Does the HDMI 2.0 splitter maintain 4K@60Hz output on all four ports simultaneously?

Yes, the splitter duplicates a single HDMI 2.0 signal to four displays at 4K@60Hz without frame drops or resolution inconsistency across the outputs.

How hot or noisy does the unit get when all four HDMI outputs and both audio ports are active all day?

The external DC power adapter supplies stable voltage under full load, preventing signal flicker; the device itself has no fan, so it runs silently and stays cool during continuous operation.

What source devices and cables do I need to connect before this splitter will work?

Connect an HDMI 2.0 source such as a Blu-ray player, PS4, Xbox or PC to the input, then run HDMI cables from the four outputs to your displays; audio can be taken from the 3.5mm jack or Optical SPDIF Toslink port.

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