I wouldn't buy that particular item, just have a read of the reviews. Normally I don't trust user reviews, but these seem pretty unanimous; it does not work as intended.
Here is one review that I think applies to you:Warning: Spoiler! (Click to show)
I ignored most of the reviews because they where from people trying to run two tv's at once with a non-powered splitter.
"Idiots" I thought. Everyone knows you cannot split an HDMI signal to run two tv's at the same time without a powered adapter. (Even though this splitter is advertised to do just that) But my setup was different (so I thought). I have a satellite box with one HDMI out. And I have two separate rooms with two tv's. So I wanted to split the HDMI cable so I could watch tv in one room OR the other without having to disconnect and connect the tv every time. Technically this splitter should work, because I'm only using one tv at a time. WRONG! The splitter works, but only when one cable is plugged in at a time. When I plug both cables in, I get a distorted screen and messed up colors and lines and, :sigh:. I should have listened to the reviews.
This product gets a 'Useless' rating because the product description is inaccurate and misleading to it's capabilities.