You can use them for all kinds of things. HDMI (High-Definition Multimedia Interface) cables allow a single plug to connect items to the HDTV. The items can be any of the following kind of items, home theater, game console, blu-ray player, DVD player/ recorder, HD cable box, Camera, Photo Frame, Laptop, etc It will allow your item to deliver High Definition picture and sound with just one connection, instead of multiple connections like RCA & VGA cables.