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Black Box KVX HDMI extender transmitter and receiver units in black finish

Black Box Corporation

Black Box Corporation KVX HDMI Extender

SKU CH-M37S-ZFMYH GTIN 822088151760

Extends HDMI 4K video, USB 2.0, RS-232 and audio up to 100 metres over CAT5/6 with local loopback on the transmitter

  • UHD 4K at 30 Hz for sharp remote viewing
  • Extends HDMI and USB up to 100 m over CAT5/6
  • Transparent USB 2.0 carries HID and mass-storage devices
  • RS-232 serial and bi-directional audio supported
  • Local video loopback on transmitter enables on-site monitoring

HDMI KVM extender over CAT5/6

The Black Box KVX HDMI Extender transmits UHD 4K video at 3840 x 2160 resolution and 30 Hz over a standard CAT5 or CAT6 cable up to 100 metres. It extends USB 2.0 for HID and mass-storage devices, adds bi-directional audio through speaker and microphone connections, and provides RS-232 serial support. A local video loopback on the transmitter enables on-site monitoring, and EDID pass-through maintains display compatibility.

Suited for remote server access.

This extender fits operators who need to control servers, industrial PCs or secure workstations from a distance of up to 328 feet in transport centres, medical facilities or warehouses. It is not designed for users who require 4K at 60 Hz or higher refresh rates, nor for applications that demand USB 3.0 bandwidth or uncompressed video beyond the stated 30 Hz limit.

Maximum video specification

The single specification that determines suitability is the maximum video resolution of 3840 x 2160 at 30 Hz over the CAT5/6 link. If the target display or source requires 4K at 60 Hz, 10-bit colour or a higher frame rate, this unit will not meet that requirement.

Highlights

  • UHD 4K at 30 Hz for sharp remote viewing
  • Extends HDMI and USB up to 100 m over CAT5/6
  • Transparent USB 2.0 carries HID and mass-storage devices
  • RS-232 serial and bi-directional audio supported
  • Local video loopback on transmitter enables on-site monitoring

Specifications

No published specifications for this item yet.

Questions about this item

How do I connect the transmitter and receiver units, and which step is often missed?

Link the transmitter and receiver with a single CAT5 or CAT6 UTP cable up to 100 meters; the step often missed is connecting the included PC cables to the source computer and enabling EDID pass-through so the 3840x2160 at 30Hz signal negotiates correctly.

What parts will need replacement after extended use?

The CAT5/6 patch cable and the USB 2.0 or RS-232 peripheral cables are the only field-replaceable items; the transmitter and receiver units themselves have no user-serviceable components.

What is the first limitation I will hit during continuous 4K operation?

The 30 Hz refresh ceiling at 3840x2160 resolution is the first hard limit; sustained use cannot exceed this frame rate regardless of cable length or connected display.

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