Toughsty&trade; 8Ch Color Non-Realtime Video Quad Processor CCTV Security Video Splitter with Audio & PIP CCTV Video Multiplexer The 8 channel CCTV video multiplexer (also known as a video mux, CCTV multiplexer, or color quad processor) combines video signals from multiple CCTV security cameras, or other analog video devices, and displays the video streams on one monitor. Security Camera Video SplitterVideo multiplexers and color quad processors are also useful in video surveillance systems that have complex monitor display requirements. Quad Video MultiplexerThe video multiplexer can be controlled using the buttons on the front of the unit or via the wireless infrared remote control that is included. 8 Channel Video MultiplexerThis quad video processor supports 8Ch non-realtime display and 2Ch video output, and it has multiple display mode, such as 8Ch, 4Ch, 2Ch, single channel or pip display mode. Video Multiplexer Split ScreenThe image quality of 8 camera multiplexer is adjustable, and it has digital zoom function, auto sequential switching, and multi channel freezing function and so on; besides, you can rename each channel and adjust alarm screen position and alarm duration time, it is very convenient to monitor your security cameras.