HDMI can not only meet the resolution of 1080p, but also support DVD audio and other digital audio formats, support eight channel 96KHz or stereo 192Khz digital audio transmission, and can transmit uncompressed audio and video signals. HDMI can be used in set-top box, DVD player, personal computer, TV amusement device, integrated amplifier, digital audio and TV. HDMI can transmit audio and video signals at the same time.

HDMI supports EDID and ddc2b, so devices with HDMI have the characteristics of "plug and play". The signal source and display device will automatically "negotiate" and automatically select the most appropriate video / audio format.

Compared with DVI, the volume of HDMI interface is smaller, and the optimal cable length of HDMI / DVI is less than 8m. As long as one HDMI cable can replace up to 13 analog transmission lines, it can effectively solve the problem of messy wiring behind the home entertainment system.