SCART (from Syndicat des Constructeurs d'Appareils Radiorécepteurs et Téléviseurs, Radio and Television Receiver Manufacturers' Association) is a French-originated standard and associated 21-pin connector for connecting audio-visual (AV) equipment together. It is also known as Péritel (especially in France), 21-pin EuroSCART (Sharp's marketing term for the connector in the Asian region), Euroconector or EuroAV. In America, another name for SCART is EIA Multiport (an EIA interface).
In Europe, SCART used to be the most common method of connecting audio-visual equipment together, and was a standard connector for such devices; it was far less common elsewhere in the world. Designed to carry analogue standard-definition content, SCART has become obsolete with the introduction of new digital standards such as HDMI, which can carry high-definition content and multichannel audio. HDMI-CEC is derived from SCART's AV.link.
The official standard for SCART is CENELEC document number EN 50049-1. SCART is sometimes referred to as the IEC 933-1 standard.
Read more about SCART: Origins, Usage, Disadvantages, Practical Considerations, Blanking and Switching, Cables