Running an HDMI cable 50, 100, or 150 feet from media rack to a wall-mounted TV — and copper cables can't carry 4K@60Hz that far without failing? Pure copper HDMI loses too much signal past about 50 ft for clean 4K@60Hz. This 4K HDMI Fiber Optic Active Optical Cable (AOC) carries video over glass fibers, holding the full 4K@60Hz HDMI 2.0 signal over runs that copper simply can't handle. UL Listed with a CL3-rated jacket for code-compliant residential in-wall installation. Built with multi-fiber optical construction, gold-plated HDMI connectors, and a CL3-rated PVC jacket. Compatible with PS5, Xbox Series X/S, Apple TV 4K, AV receivers, wall-mounted TVs, ceiling-mounted projectors, and home theater installs — directional cable: the SOURCE end must connect to the source device. Supports 4K@60Hz, HDR10, ARC, CEC, and HDMI 2.0 features at up to 18 Gbps. Best for: long in-wall home theater runs to far-wall TVs and ceiling projectors. Not for: plenum spaces (use Plenum AOC), 8K, or 4K@120Hz. RoHS compliant.