Video switchboxes and splitters manage the paths between sources and screens: switches that let one display serve several sources, splitters that send one source to several displays, and matrix units that do both at once. Classrooms, conference rooms, signage, and control desks all run on this hardware.
Specify by connector and resolution together - a switch or splitter passes what its ports and internals support, and a unit rated below the display's resolution quietly becomes the ceiling for the whole chain. Count inputs and outputs with growth in mind, since the price step to the next size up is smaller than the cost of replacing a full unit later. For distribution over distance, pair switching with extension rather than stretching cables past their limits. Powered units belong on protected outlets like any other signal equipment. COLAMCO quotes video switching and distribution for business, government, and education rooms, matched to the sources and displays already in service.