4K 18Gbps HDMI Multiviewer


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The SPLITMUX 4K 18Gbps HDMI Quad Screen Multiviewer allows video from four different HDMI 2.0 Ultra-HD 4Kx2K 60Hz sources to be simultaneously displayed in real-time on a single monitor. It is capable of displaying the HDMI 2.0 video signals in quad, PiP, full, or custom mode.


  • Quad, Picture-in-Picture (PiP), Full Screen, and Custom display modes.
    • Custom Display Mode: the size, position and selection of any or all windows are customizable.
      • 2- and 3-source viewing is possible with this method.
      • Maintain input aspect ratio if desired - no stretching necessary.
      • Layer display windows and adjust transparency of each video source display.
  • Supports input/output resolutions up to Ultra-HD 4Kx2K (3840x2160 and 4096x2160 @24/30/60Hz YUV 4:4:4) in all display modes.
    • Independent video in to video out resolution.
  • HDMI features supported:
    • HDMI 2.0
    • Up to 36-bit color for input and 24-bit for output
    • RGB, YUV 4:4:4, YCbCr 4:4:4, YCbCr 4:2:2
    • LPCM audio
    • Bandwidth up to 600 MHz (18 Gbps)
  • HDCP 2.2 and 1.4 compliant.
  • Fluid, real-time video performance with up to 60 frames per second (fps) in all four quadrants.
  • Zoom, pan, and crop the image from any source to focus on key areas.
  • Switch audio independently of video from connected HDMI sources (e.g. source 1 and source 2 video are active while only source 3 audio is active).
    • Multiple audio sources can be simultaneously active in any display mode or preset layout.
    • Adjustable audio gain with VU level indicators for each input channel.
  • A customized text label can be added for each video window to provide easy input identification (UMD).
  • Control the multiviewer through Ethernet, RS232 serial port, keyboard commands, on screen display (OSD), front panel buttons, or optional IR remote.
  • Cascade multiviewers to display video from any number of video sources on one screen.
    • Each video source in the cascade can be controlled directly from the Web Server graphical user interface under Custom Mode Settings.
  • Backup and restore multiviewer configurations.
  • Supported output resolutions can be selected or set to auto detect optimal resolution from the monitor's EDID.
  • 1RU rackmount kit and cable management shelf included.

4K 18Gbps HDMI Quad Screen Splitter/Multiviewer Diagram

Technical Specifications

  • Video Input
    • Four female HDMI connectors.
    • Compatible with computers and UHD video sources (satellite receivers, Blu-Ray players, etc) with HDMI video.
    • Supports videoo input resolutions up to ULtra-HD 4Kx2K (3840x2160 and 4096x2160 @24/30/60Hz YUV 4:4:4) in all display modes.
  • Video Output
    • One female HDMI connector.
    • Supports output resolutions up to Ultra-HD 4Kx2K (3840x2160 and 4096x2160 @24/30/60Hz YUV 4:4:4) in all display modes.
    • HDMI-embedded audio switching (four-channel stereo mixing).
    • Supports HDCP 2.2
    • Latency:
      • 50mS at 60Hz
      • 60mS at 50Hz
      • 100mS at 30Hz
      • 120mS at 25Hz
      • 125mS at 24Hz
  • Protocols
    • IPV4
    • Supports HTTP REST API to configure SPLITMUX-4K18GB-4 with response in JSON format.
  • Power
    • Input: 110 to 220 VAC at 50 or 60Hz via country-specific AC adapter.
    • Output: 12V, 8.3A
    • Power consumption: 35W
  • Dimensions
    • WxDxH:
      • Without supplied rackmount kit: 7.85x6.96x1.75 in (199x177x44mm)
      • With supplied rackmount kit: 19x6.96x1.75 in (483x177x44mm)
        • Can be mounted so that the front panel buttons are facing the front or back of the rack.
      • Includes cable management tray.
        • Adds 3" to the depth.
  • Environmental
    • Operating temperature: 32 to 113°F (0 to 45°C).
    • Storage temperature: -22 to 140°F (-30 to 60°C).
    • Operating/storage relative humidity: 5 to 90% non-condensing RH.
  • Cables
    • Interface cables between the video sources/display and the multiviewer are required for proper operation.
      • Supports cable lengths to 15 feet for 4Kx2K resolutions and 50 feet for 1080p.
        • Longer cables can be used provided they have a built-in video equalizer (also known as "active HDMI cables").
    • Use HD-xx-MM cable to connect an HDMI source or display.
    • Use HD-ACT-xx-MM 4K HDMI Active Cables to connect an HDMI source or display up to 100 feet.
    • HD-ACT-20/25/30/40/50/60-MM supports resolutions to 4K@60Hz.
    • HD-ACT-75/100-MM supports resolutions to 4K@30Hz.
    • Use DP-HD-xx-MM cables to connect a DisplayPort source up to 15 feet away from the switch.
    • Supports resolutions up to 4k@30hz 4:4:4 and 4K@60Hz 4:2:0.
    • Cables not included.
  • Regulatory Approvals
    • CE, RoHS
    • TAA compliant
  • Warranty
    • Two Years