RCA connectors are electrical connectors commonly used to transmit audio and video signals. They consist of a central pin surrounded by a metal ring, which helps secure the connection. Typically color-coded—yellow for video, red for right audio, and white for left audio—these connectors are widely found in home entertainment systems, televisions, and audio equipment. The design of RCA connectors allows for easy plug-and-play functionality, making them user-friendly. They are often used in conjunction with cables that have matching RCA plugs, enabling seamless connections between devices like DVD players, game consoles, and amplifiers.