To get 8K video output from the 8K Ultra High Speed HDMI Cable, both ends of your setup need to support 8K. Connect one end to a host device with an HDMI 2.1 port that specifically supports 8K output, and the other end directly to an 8K-capable monitor or TV. If either the host or the display does not support 8K, the picture will drop to the highest resolution both devices share.