The cable runs from the computer tower in the kitchen with the 30 graphics card, through the wall, through the attic and down the wall in the living room to the 120Hz OLED TV. The cable worked fine at 60Hz over a 50ft span, but as expected it didn't reach the 120Hz where the TV stopped. I haven't found a newer HDMI 2.1 cable that should be able to do this, ie is 50 feet long and doesn't cost an arm and a leg. Until 2.1 becomes more common, this cable is about as good as it gets for transmitting a 4k signal remotely.