I have to write a reply to balance the negative remarks here. It is obviously true that if you have a cheap HDMI cable that works, you don’t have to go for a more expensive one. These cables are certified to also work on future extension (BR profile 2.0/3.0/…). Suppose you want to transfer images at 120Hz and 12+bit color per channel, you will need a cable that can handle the bandwidth. Perhaps a cheap cable is enough for that, but if I am embedding cables in the walls of a house I am building, I prefer to be certain. Agreed, I doubt if this ‘safety’ will ever be needed, and I doubt if it warrants the price premium.