In everyday life, there can be many situations which require images to be replicated on several monitors, as in classrooms, at trade-shows venues, in point-of-sale displays, at retail stores and in airports: what you need in all these settings is a video splitter.
The input device is connected to the video splitter, allowing the signal to enter the splitter. Two or more output connections are then used with the splitter and the signals are sent to them. This allows two or more monitors to display the same audio and video together.
In addition to the usual HDMI, DVI and VGA types of video splitter, is now available a Cat 5-based video splitter, which differs from the others mainly by the type of cable that is used to connect the target video source to the multiple monitor feeds.
Cat 5 video splitters implement thin Cat 5 cabling, which reduces the cabling nightmare often presented by standard video splitters. Furthermore, some Cat 5 video splitters allow the user to darken all remote monitors while administrative changes are being made.