Use this repeater to amplify your 4K HDMI signal and extend it 45 ft. using certified HDMI cables. Enjoy astonishing picture quality with support for 4K 60Hz at up to 45 ft. away from your video source. This HDMI inline repeater supports 7.1 surround sound audio for a complete AV solution. Designed to be compact, this HDMI amplifier is easy to setup and can be hidden away for a discreet installation.