An HDMI cable is high definition multimedia interface, this cable can carry signal for audio and video inside one cable which makes for simpler connections. To use analog connectors would take nine individual cables to equate what the HDMI can handle. HDMI is capable of 1080p video, that"s sixty frames a second, which is currently the highest video standard; and on audio it handles eight channel of 24 bit 192Khz which is enough for Dolby TrueHD and DTS-HD, the two highest standards in audio. HDMI can also enable devices to communicate which helps setups. Such as when you connect a game system to the TV, the game system is able to tell the television the mode of video it"s using so the TV can set itself automatically for the right resolution. HDMI is also backward compatible with DVI, there are easy cables and adapters for connecting DVI and HDMI electronics together.