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Small black box with HDMI ports and optical plus 3.5mm audio outputs

SMUGDESK

SMUGDESK HDMI 2.0b Audio Extractor Splitter 4K 60Hz HDR10 HDCP 2.2 ARC 18Gbps Optical SPDIF 3.5mm

SKU CH-RNQ8-S38QN

Extracts audio from HDMI 2.0b sources at 4K 60Hz with HDR10, outputting digital optical and 3.5mm analogue simultaneously while supporting ARC return

  • Extracts digital audio via optical SPDIF and 3.5 mm jack
  • Passes 4K 60 Hz HDR10 video at 18 Gbps bandwidth
  • HDCP 2.2 compliant for protected 4K content playback
  • ARC return channel sends TV audio back to soundbar
  • Plug-and-play operation with consoles, streamers and PCs

HDMI 2.0b Audio Extractor with ARC

This SMUGDESK HDMI 2.0b audio extractor separates digital sound from a combined video stream while preserving 4K resolution at 60 Hz. It handles 18 Gbps bandwidth with HDR10 and HDCP 2.2 support for protected content. The unit suits home-theatre owners, gamers using PS5 or Xbox consoles, and anyone adding external speakers to a TV lacking direct audio outputs.

Upgrades TVs and consoles without dedicated audio

The device replaces the need for a receiver with multiple HDMI inputs by pulling sound from a single HDMI link. It is worth adding when your display only offers HDMI and you want lossless surround via optical or simple stereo through the 3.5 mm jack. The built-in ARC function also returns TV-internal app audio to a soundbar without extra cables.

Check your source and sink before ordering

Verify that your source device outputs HDMI 2.0b or earlier and that your display or projector accepts the same standard. Ensure your amplifier, soundbar or headphones accept optical Toslink or 3.5 mm analogue input. The extractor passes video through unchanged, so the chain must support the target resolution and refresh rate natively.

Highlights

  • Extracts digital audio via optical SPDIF and 3.5 mm jack
  • Passes 4K 60 Hz HDR10 video at 18 Gbps bandwidth
  • HDCP 2.2 compliant for protected 4K content playback
  • ARC return channel sends TV audio back to soundbar
  • Plug-and-play operation with consoles, streamers and PCs

Specifications

No published specifications for this item yet.

Questions about this item

What HDMI cable bandwidth is required for the 4K 60Hz HDR10 signal?

Use an HDMI cable rated for 18 Gbps bandwidth to carry the 4K 60Hz HDR10 signal without loss.

Which HDMI port on the TV must be used for the ARC audio return function?

Connect the extractor HDMI output to the TV HDMI port labelled ARC and enable ARC in the TV sound settings.

How often should the optical Toslink port be cleaned to keep digital audio reliable?

Clean the optical Toslink port with compressed air whenever dust is visible, typically every few months in a home theater.

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