1、3D SURROUND SOUND: HD multimedia interface ARC supports 3D surround sound, which creates an immersive world in your living room for a great experience. 2、COMPATIBLE VERSIONS: HD multimedia interface cord is available for all devices with the HD multimedia interface 2.1 standard and is backward compatible with HD multimedia interface 1.4, 1.3 and 1.2. 3、SUITABLE OBJECT: HD multimedia interface to HD multimedia interface Cable is widely used, very suitable for 4K and HD TV, monitors, displays or projectors, easy to use and fast. 4、STABLE TRANSMISSION: 4K HD multimedia interface prevents external signal interference, ensures stable signal transmission, minimizes signal loss and enjoys video and sound simultaneously without delays. 5、ULTRA HD 4K: HD multimedia interface cable supports HD multimedia interface 2.1 including 18Gbps, mirroring and extended mode, Ultra HD 4K 2160p, HD 2K 1080p, QHD 1440p, HDCP 2.2, 48 bit deep color, (ARC) , TrueHD 7.1 sound and hot plugging.