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Black Box KVXHP-400 KVM extender unit, matte black metal enclosure, front panel LEDs and ports

Black Box Corporation

Black Box Corporation KVM Extender KVXHP-400 Quad-Head DisplayPort 1.2 1920x1200 60Hz

SKU CH-8GVB-G8XY6 GTIN 822088151890

Quad-head DisplayPort 1.2 KVM extender sends 1920x1200 60Hz video, USB 2.0 and audio up to 328 ft over CATx or 2.5 miles over fiber

  • Four monitors over one cable via DisplayPort 1.2 MST
  • Extends up to 328 ft over CATx or 2.5 miles over fiber
  • True USB emulation works with advanced keyboards and mice
  • Intelligent EDID management reduces monitor compatibility issues
  • Digital and analog audio transmitted alongside video and USB

Black Box KVXHP-400 Quad-Head KVM Extender

The Black Box KVXHP-400 is a high-performance KVM extender that transmits quad-head DisplayPort 1.2 video, USB 2.0 HID signals, and audio over a single CATx or fibre cable. It supports four external MST-enabled monitors at resolutions up to 1920x1200 at 60Hz with 4:4:4 chroma sampling. True USB emulation ensures compatibility with advanced keyboards and mice. Intelligent EDID management reduces monitor compatibility issues.

Suits four-display control rooms.

This extender suits operators who need to control a remote system across four DisplayPort monitors from up to 328 feet away over CATx or 2.5 miles over fibre. It fits rackmount installations using the optional tray. Buyers who only need one or two display outputs should look at single-head or dual-head models instead. It does not support resolutions beyond 1920x1200 or refresh rates above 60Hz.

Extends up to 328 ft over CATx

The maximum link distance is the critical specification: 100 metres (328 ft) over standard CATx cabling or 4 kilometres (2.5 miles) over fibre. This range determines whether the unit can bridge the gap between your server room and operator station. Both cable types carry video, USB, and audio simultaneously without additional wiring.

Highlights

  • Four monitors over one cable via DisplayPort 1.2 MST
  • Extends up to 328 ft over CATx or 2.5 miles over fiber
  • True USB emulation works with advanced keyboards and mice
  • Intelligent EDID management reduces monitor compatibility issues
  • Digital and analog audio transmitted alongside video and USB

Specifications

No published specifications for this item yet.

Questions about this item

What rack space does the KVXHP-400 need when mounted with the optional tray?

The optional KVXHP-RMK tray holds up to two extender units in a standard 19-inch rack, leaving room for power supplies and cable management.

How do you connect the transmitter and receiver for the full four-display setup?

Link the pair with a single CATx cable up to 100 metres or a fiber cable up to 2.5 miles; both carry quad-head DisplayPort 1.2 MST video, USB 2.0 HID and audio.

What ongoing maintenance does the extender require after installation?

No scheduled maintenance is needed; the unit has no user-serviceable parts and relies on passive cooling, so only verify LED status and cable integrity periodically.

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