Connects 2 devices with HDMI interfaces – For easy connexion of video game consoles, Blu-ray Disc players, PCs, computer monitors, HDTVs and more. Solid 1.25% silver-plated copper – For reduced signal loss. High-speed 1080p/120Hz-4K-3D audio return channel – Along with Critical Stable Geometry offers high-quality audio and video playback. In-wall rated – For flexible installation options.