4K UHD HDMI/VGA over IP Receiver with USB/KVM Extension

CH-U331RX - 45 degree
CH-U331RX - 45 degree
CH-U331RX - Front
CH-U331RX - Back

The CH-U331RX, one part of a 4K UHD Multi-Function Extension system, is able to extend HDMI or VGA signals along with KVM through Cat.5e/6/7 network cable and transmit UHD video signals, audio and USB up to 100m on a single cable. The transmission distance can be further extended (up to 100m per segment) by using gigabit network switches, allowing the user to cascade the system without signal loss or introducing delay.

CH-U331RX also allows you to send a single AV signal to a large number of Receivers within the same local network. Additionally, that same multicast signal can be used to create large multi-display video walls with amazing simplicity. This system is perfect for both residential and commercial installation environments.

The USB functionality allows the system to act like a remote USB hub which, when combined with the video extension feature, provides a flexible remote KVM platform. Configuration information is provided via the On-Screen Display (OSD) on the Receivers and both unit types can be controlled via front panel buttons, WebGUI, Telnet, and the AV over IP Master Controller.


  • Video, audio and control reception over TCP/IP in Unicast (point-to-point) or Multicast (single-to-many, many-to-many) modes
  • Support video wall with 180° and 270° rotation
  • Video output can be scaled to a selected resolution, or left unscaled
  • The analog Line In on a connected Transmitter will send audio directly to this Receiver’s analog Line Out as well as being embedded into the HDMI output signal
  • The Mic In on the Receiver sends audio directly to the analog Line Out on the Transmitter
  • May be powered directly by PoE when connected to a Gigabit Ethernet switch that provides PoE (802.3af)
  • Includes 3 LAN ports, allowing multiple Receivers to be daisy chained without the need for an external Gigabit Ethernet switch
  • Supports USB keyboard, mouse and storage extension

Inputs 1x RJ-45 [1x PoE Propriety Data / IP Control / LAN Serving]
2x RJ-45 [2x Propriety Data / IP Control / LAN Serving]
1x 3.5mm [1x MIC IN Stereo(L/R)]
2x USB Type-A [2x USB 1.1 Propriety Data]
2x USB Type-A [2x USB 2.0 Propriety Data]
1x DE-9 [1x RS-232 Data]
1x 3.5mm [1x IR IN Infrared Receiver]
Outputs 1x HDMI [1x Uncompressed AV and Data]
1x HD-15 [1x VGA RGBHV]
1x 3.5mm [1x LINE OUT Stereo(L/R)]
1x TOSLINK [1x OPTICAL 2 Channel LPCM]
1x 3.5mm [1x IR OUT Infrared Emitter]
PSU: 5V/4A
Dimensions 231mm [W] x 120mm [D] x 25mm [H]
Net Weight 666g