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Compact black metal box with HDMI ports and USB-C connector

Gefen

Gefen HDMI EDID Detective GF-EDD-HD 8K 48Gbps USB-C video capturing device

SKU CH-AC27-YWGHX

Stores and emulates display EDID to maintain reliable 8K@60Hz and 4K@120Hz HDMI 2.1 signals up to 48Gbps with HDR and immersive audio, programmable via USB-C for studios and signage

  • Ensures stable handshakes by storing and emulating display EDID
  • Supports 8K at 60Hz and 4K at 120Hz via HDMI 2.1
  • Handles 48Gbps bandwidth with HDR10, HDR10+, Dolby Vision and HLG
  • Preserves immersive audio including Dolby Atmos and DTS:X
  • Programmable EDID management through USB-C for flexible deployment

What the HDMI EDID Detective Does

The Gefen GF-EDD-HD stores and emulates a display's EDID to prevent signal handshake failures when screens are powered off or switched. It maintains reliable communication up to 8K@60Hz and 4K@120Hz with full HDMI 2.1 compliance and 48Gbps bandwidth. Supports HDR10, HDR10+, Dolby Vision, and HLG formats while preserving immersive audio including Dolby Atmos and DTS:X. Programmable EDID management via USB-C enables flexible setup for studios, control rooms, and digital signage networks.

How It Fits Into a Build

The unit sits between an HDMI source and display, requiring only a USB-C connection for EDID programming and power. HDCP 2.3 and 2.2 compatibility ensures protected content passes through without interruption. Its compact metal construction suits mission-critical installations such as video walls, projectors, and interactive whiteboards. The device frees operators from manual display reconfiguration by locking the EDID, so source devices always see a consistent sink regardless of downstream switching or power cycling.

Who This Suits and Who Should Look Elsewhere

Ideal for AV integrators, digital signage operators, and home-theater enthusiasts who need persistent EDID emulation at 48Gbps bandwidth across resolutions up to 7680 x 4320. Buyers who require multi-input switching, signal distribution to multiple displays, or format conversion beyond EDID management should look at matrix switchers or distribution amplifiers instead. The device addresses handshake stability only; it does not split, scale, or convert the video signal itself.

Highlights

  • Ensures stable handshakes by storing and emulating display EDID
  • Supports 8K at 60Hz and 4K at 120Hz via HDMI 2.1
  • Handles 48Gbps bandwidth with HDR10, HDR10+, Dolby Vision and HLG
  • Preserves immersive audio including Dolby Atmos and DTS:X
  • Programmable EDID management through USB-C for flexible deployment

Specifications

BrandGefen

Questions about this item

Does the 48Gbps HDMI 2.1 bandwidth cap limit 8K capture at 60Hz?

The device handles 8K at 60Hz and 4K at 120Hz within the 48Gbps HDMI 2.1 specification, so the bandwidth ceiling matches the stated resolution and refresh targets.

How much heat or noise does the unit produce when powered continuously in a rack?

The compact metal enclosure is passively cooled with no fan, so it runs silently and generates only modest warmth during all-day operation.

Must I own a USB-C host to program the stored EDID before deployment?

Yes, EDID management and programming are performed over the USB-C port, so a computer with a USB-C connection is required for initial configuration.

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