Rocketfish - 100' 4K Ultra HD/HDR In-Wall Rated Active Fiber Optical HDMI Cable - Black Supports up to 4K Ultra HD resolution:To aid in getting the very best picture from your 4K source. Advanced Fiber Optic Cable: Using fiber optics to carry the audio and video data allows this cable to be thinner, longer, and more flexible without any compromise to performance, with AUX