An RCA connector is a type of electrical connector commonly used to transmit audio and video signals. It features a cylindrical shape with a central pin for connection and is often color-coded: typically yellow for video and red and white for audio. RCA connectors are widely found in consumer electronics, such as televisions, DVD players, and stereos. These connectors are easy to use and provide a reliable connection for various devices. They are part of a larger family of connectors, but their simplicity and effectiveness have made them a standard choice for many home entertainment systems.