This product can operate as a signal router,you may have a TV in two separate rooms,you can have a TV on in one room and when you want to switch room and keep watching the TV,you just need to switch one TV off and switch the other TV on,and then the signal is routed to the TV in the other room.
This HDMI splitter cable is great for connecting one HDMI compatible device (Xbox,Blueray,DVD players,for PS3) to two visual output devises.