SPLITMUX HDMI Quad Multiview KVM Switches

HDMI quad screen-splitter/multiviewer with built-in USB KVM switch 

for displaying video from four HDMI/DVI computers simultaneously on a single monitor; switching to and controlling any of the four computers while monitoring the other three connections in real time 

SPLITMUX® HDMI quad screen multiviewer with built-in USB KVM switch allows you to simultaneously display video from four different computers on a single monitor. Additionally, it can switch one of the four attached computers to a shared keyboard and mouse for operation and to two additional USB devices.

It is capable of displaying the video sources in quad, PiP, full, or custom mode. In custom display mode, each of the quadrants can be adjusted to any size and positioned to any location on the display.