A fairly common need in more complex video systems is to efficiently route specific inputs to specific outputs in a clean manner. A matrix router has a number of inputs and outputs and allows any input to be routed to any output or combination of outputs. From a restaurant that has multiple TVs, cables, or satellite boxes to a television studio that uses a large matrix as a digital patchbay into their video mixers, these devices can serve a number of purposes. Routers have different options of connectors, resolutions, scaling, and control features. One of the most important things is getting a matrix large enough to handle current and future needs. If a single output is needed, please see switchers or mixers, depending on your desired functionality.