What is an HDMI cable?

High Definition Multimedia Interface (HDMI) is an interface standard that has both high-definition digital video and digital audio transmission capabilities . It is a dedicated digital interface suitable for image transmission. It can transmit audio and image signals at the same time . The highest data transmission speed is 18Gbps. At the same time, there is no need to perform digital/analog or analog/digital conversion before signal transmission  . The HDMI cable is a fully digitalized image and sound transmission line, which can be used to transmit audio signals and video signals without any compression. Mainly used in plasma TVs , HD players , LCD TVs, rear projection TVs , projectors , DVD recorders/players, D-VHS recorders/players and digital audio-visual display devices for video and audio signal transmission.