4K UHD Long HDMI leads require amplification of the signal to ensure there's no signal loss across a long distance run. This unidirectional cable provides all amplification, and even includes a built-in equaliser that boosts the signal strength without the use of a power supply. Supports up to 4K at 60fps with Ethernet and full audio pass-through. Includes HDMI to USB power injector to provide voltage boost when required at display.