The 5x1 HDMI Switcher routes HD video and digital audio from any one of the five sources to display device. Five inputs accommodate the connections of 5 HD video sources simultaneously, such as cable box, satellite systems, game, or DVD players. The output sends the HD audio/video signals to an HD display. Switching is done by a push button on the unit or via the IR remote that is provided with the unit. This mini switch has an external IR sensor so that the switch box can be placed in a discreet location. There are, in total, 6 open slots available on this device: 1 for output to the display and 5 for input. Some TVs have several HDMI slots on their back while others have only a single one. Regardless of your setup, you will save TV slots and keep your entertainment center organized.No crazy set up or installation needed here. Simply plug your devices in the switch and enjoy. The remote has a minimalist design that contains 5 buttons to switch between devices. Oh and if you hadn't guessed, those 5 buttons are "1", "2", "3", "4"," 5" for the 5 channels. Notes: Cables with equalizers or repeaters are known to cause problems with splitters and switches with repeaters. FireFold recommends using only regular HDMI cables with this device.