Powered from a single power supply via bi-directional PoE, the extenders can control the source from the display’s location or vice versa via the IR pass-through or bi-directional RS-232 control functions. The compact unit measures 5.3” wide x 3.0” long x 0.6” high. The package ships with a transmitter, receiver, power supply, four mounting ears, two IR emitter cables and two IR receiver cables.