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KVMSwitchTech SM HDMV PLUS SmartAVI Quad Screen HDMI Real Time Multiviewer and PIP KVM Switch

Number of Input Devices Supported. You can also distribute different video combinations independently across four individual displays. Startech 4x4 hdmi matrix switch with picture-and-picture multiviewer or video wa share and switch four distinct hdmi audio/video sources between four hdmi displays, with optional picture-and-picture.