Scart Jack and SCART socket are common audio and video connection interfaces, which were widely used in devices such as televisions, VCRs, and DVD players. The SCART jack typically refers to the male Connector with 21 pins, responsible for transmitting various signals such as composite video, RGB signals, and stereo audio. The SCART socket is the female connector on the device, used to receive the SCART jack and establish the connection. This type of connection ensures high-quality audio and video synchronization between devices, making it particularly suitable for older televisions and Other audiovisual equipment. Although SCART Connectors have gradually been replaced by digital interfaces like HDMI, they still play an important role in some traditional devices, especially in composite video and audio output, ensuring compatibility and signal stability between devices.