4K resolution UDB2 KVM extender using HDBaseT 2.0 over a single CAT 6/6A cable with RS232, IR, SPDif + POC.

Key Features

  • USB 2.0 extension
  • HDMI resolutions 4K, 2K & 1080p
  • HDCP 2.2 compatible
  • Full duplex RS232 passthrough
  • Bi-directional IR pass through
  • 100BaseT Ethernet pass through
  • High Dynamic Range (HDR) with BT.7090 colour space

The 4K-975-USB is a flexible and cost effective KVM extender for HDMI, USB 2.0, bi-directional IR, full duplex RS232  together with 100BaseT Ethernet and POE. Consisting of a transmitter/receiver pair, both units are compact and come with mounting brackets. By incorporating the full HDBaseT 2.0 technology 4K UHD HDMI signals can be transmitted up to 100m.

The 4K-975-USB is a HDBaseT KVM extender pair capable of distributing HDMI signals up to 4K UHD resolutions to 100m of Cat 6/6A cable. By implementing the complete 5-Play of the HDBaseT 2.0 specification the extender pairs also provides the pass through of wide band bi-directional InfraRed signals, full duplex RS232 up to 115 Kbaud and 100BaseT Ethernet. USB 2.0 extension is achieved by harnessing the internal 100BaseT Ethernet link within the HDBaseT protocol. Each unit is powered via a 24V PSU which can also power the other remote device through the same cable.


  • 4K @60Hz 4:2:0 colour space, 2K
  • 4K @30Hz 4:4:4 colour space, 1080p
  • USB 2.0 extension with Hub
  • Near Zero latency
  • Uncompressed Video transmission
  • Outputs reach up to 100m
  • HDCP/EDID/DDC transparent link
  • HDCP 2.2 & 1.4 compatible
  • Full duplex RS232 passthrough
  • Bi-directional IR pass through
  • 100BaseT Ethernet pass through
  • HDMI 2.0 to 4K 60Hz 4:2:0 8 bit colour
  • Bi-directional POC (Power Over Cable)
  • Uses HDBaseT 2.0 technology
  • Bi-directional TOSLINK
  • Compact TX/RX unit
  • Easy to install, inexpensive CAT 6/6A cable
  • Secure lockable DC connector
  • LPCM 7.1 audio, Dolby Atmos®, Dolby® TrueHD, DTS:X™, and DTS-HD Master Audio™ pass-through



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Description Type Size
Datasheet PDF File 1000 KB




Narrow Band Infra-Red receiver eye for 38 KHz modulated signal. Good noise rejection, range 8-10 metres.


Infra-Red emitter to remote control of source devices. This unit is compatible with all Smart-e products.