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Silver metal box with four HDMI inputs and two outputs on the back

SMUGDESK

SMUGDESK 4×2 HDMI 2.0 Matrix Switch 18Gbps 4K@60Hz HDR10 audio

SKU CH-9DHH-9XR8S

Routes four HDMI sources to two independent displays at 4K 60 Hz with HDR10, plus dual optical and analogue audio extraction and per-output 1080p downscaling

  • Route any of 4 sources to 2 independent displays
  • 18Gbps bandwidth delivers 4K at 60Hz with HDR10
  • Extract 5.1 surround via optical or stereo to 3.5mm ports
  • Downscale 4K to 1080P per output for mixed displays
  • Switch instantly with front buttons or IR remote control

True 4×2 HDMI matrix routing

This 4×2 HDMI 2.0 matrix switch routes any of four input sources to two independent outputs. Dual displays can show identical or different content for home-theatre or conference-room setups. It handles 18Gbps bandwidth with 4K@60Hz RGB 8:8:8, HDR10 and HDCP2.2. Buyers who need more than four sources or additional output zones cannot use this unit.

Passive aluminium chassis runs silently

The aluminium alloy housing with gold-plated ports operates without fans, so it adds no audible noise to the room. Power draw is limited to the HDMI 2.0 signalling circuitry and the EDID processor. There is no active cooling to maintain, and no external power-brick noise to manage in a quiet install.

Fits standard AV racks and shelves

The switch accepts four HDMI sources and feeds two displays while extracting audio through two SPDIF optical and two 3.5mm L/R ports. Independent downscaling per output lets a 4K source feed a 1080P screen without a separate converter. EDID management and IR remote control simplify integration. Installations requiring HDMI 2.1 bandwidth or more than two audio zones need different hardware.

Highlights

  • Route any of 4 sources to 2 independent displays
  • 18Gbps bandwidth delivers 4K at 60Hz with HDR10
  • Extract 5.1 surround via optical or stereo to 3.5mm ports
  • Downscale 4K to 1080P per output for mixed displays
  • Switch instantly with front buttons or IR remote control

Specifications

No published specifications for this item yet.

Questions about this item

How do I connect four sources and two displays to the SMUGDESK 4×2 matrix, and which step is often missed?

Connect up to four HDMI sources to the inputs and two displays to the outputs. The step often missed is configuring the EDID settings and enabling the independent 4K-to-1080P downscaler on each output to match older 1080P displays.

What maintenance will the SPDIF optical and 3.5mm audio extraction ports need over time?

The gold-plated SPDIF optical and 3.5mm L/R ports require no scheduled maintenance. Keep them dust-free and ensure cables seat firmly to maintain lossless 5.1CH audio extraction for Dolby Atmos and DTS-HD signals.

At what bandwidth limit does the matrix show strain during sustained 4K@60Hz HDR10 use?

The 18Gbps HDMI 2.0 bandwidth ceiling is the first limit under sustained 4K@60Hz RGB 8:8:8 HDR10 loads. HDCP 2.2 handshake stability and thermal performance of the aluminum housing govern long-hour continuous operation.

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