HDMI (High-Definition Multimedia Interface) is an interface used to transmit uncompressed audio and video digital data. It is commonly used in High Definition TVs. Currently HDMI suport 720p, 1080i, 1080p with eight channel audo support. HDMI can transmit at a speed of 5 GBPS and HDMI cable have 19 wires and it looks similar to USB cable but with more thickness.
In mobile phones HDMI ports are common for connecting it to your Television sets. There is Type A & Type B HDMI cables, Type B have 29 wires. HDMI can deliver the best image quality of any of the cable types available today. It can handle high-definition video of up to 1080p resolution at 60 frames per second, which is the most bandwidth-intensive video format currently available.Typically the maximum length for a ‘standard’ HDMI cable is about 15 metres.