Audio and Video Cables and Connectors
In this section we have grouped the three main types of video cable:
HDMI cable: currently the most common of all, due to its greater simplicity and better features than the rest. It serves to transmit audio and video in high definition, and even offers the possibility of also acting as an Ethernet network cable. We have two versions of HDMI, 1.4 and 2.0. Version 1.4 supports 4K, although only at 24Hz, supports 3D video and introduced a new connector, type D or micro HDMI. Version 2.0 is the most widespread today and supports 4K at 60Hz, up to four audio streams and dynamic HDR support, in addition to the functions of 1.4.
SCART cable: previously very popular connector, when the equipment only supported standard SD resolutions. It is a 21-pin connector, which transmits audio and video. It was designed in France in 1978 and was mandatory since 1981 on all television equipment marketed in France.
RCA or A/V cable: Also called Cinch and CVBS. It is still very common in the audiovisual market. Older than the SCART (1940). The RCA has a separate cable for each audio or video signal, which is why it has 3 cables: composite video (yellow) and stereophonic sound (white and red). These colors help to identify them, facilitating the correct connection in the equipment. This cable is used to carry digital audio, RGB component video, and analog video signals.