I know there are monitors capable of displaying 2 or 4 inputs at a time but Is there a device that can view 4 computer images on a monitor?

  • A 5th computer receiving streams, VNC, or HDMI inputs from the other 4 could be used to do this. Or even one of the 4 computers could take the streams/inputs of the other 3 plus its own primary display then display a 4-screen composition on a secondary display. This can all be accomplished with livestreaming software like OBS.
    – Romen
    Dec 10 '19 at 18:36
  • Hi @Romen! Thanks for your suggestion. How can a mother computer capture video streams from other computers? If you are referring to the desktop remote method, this method is very slow. In addition, this method consumes a great deal of system resources.
    – ba haran
    Dec 11 '19 at 8:52
  • By using a PCIe capture card like this one, you can compose a "scene" with the 4 HDMI inputs in a streaming program like OBS. Then that "scene" can be displayed on a monitor plugged into that computer. Like I mentioned before, if one of the 4 PCs is fast enough, you could use a 2nd monitor and not need a 5th PC for this. Yes, using remote desktop or "streaming" would use more resources on all 4 computers, but that is another solution that only requires software.
    – Romen
    Dec 12 '19 at 18:43

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