HDMI cable is the essential component for attaching HD devices. A Best HDMI Cables can send all formats of digital video and audio. Before HDMI came along, you needed separate cables for audio tracks and video. It can even handle content from an internet connection. This super cable can do it all, not to mention clean up the mess of cables you find behind your TV. You do not need dozens of confusing cables going in every direction, one HDMI cable is all you need.