I had to laugh when reading some reviews spontaneously

There you can read it in the product description written that the Article 3 outputs and one input has (possibly confusing because of the input of a male SCART connector is). How then some people come up with the idea 2 devices (DVD player, ...) to join it? Think about it: when you connect 3 devices to a screen, where will the indicator then know which signal source should be displayed? That would require a toggle button.

So, this distribution is meant to be a signal source (DVD player for example) display (up to) 3 screens and he does perfectly.