Use this repeater to amplify your 4K HDMI signal and extend it 30 ft. using a standard HDMI cable and no power adapter required Astonishing picture quality with support for 4K (60Hz) at up to 30 ft. (10 m) away from your video source Backward compatible with 1080p resolutions at up to 115 ft. (35 m) away from your video source For 4K60 resolution place the repeater between two 15 ft. (5 m) HDMI cables for total distance of 30 ft. or 5 m (longer distances supported at 1080p) Works with HDMI video sources such as your MacBook or Lenovo X1 Carbon laptop / HDCP 2.2 / HDMI 4K / HDMI signal booster / HDMI 1080p / Video signal amplifier / Video signal generator / HDMI 2.0 repeater / 4K60 / 4K HDMI port extender / HDMI 2.0 extender