DC power socket (also known as DC DC power socket, DC power socket connector, waterproof DC power socket, DC socket) is a socket matched with the special power supply for computer display. It is composed of a horizontal socket, a longitudinal socket, an insulating base, a fork shaped contact spring and a directional keyway. The two fork shaped contact spring are positioned in the center of the base and are arranged in a vertical and horizontal manner and are not connected with each other. One end of the fork shaped contact spring is a wiring port, which is exposed on the top of the base cylinder for connecting the input power cord or flexible cable. The other end of the fork shaped contact spring is composed of two elastic arms interconnected by the base, which are arranged in the insulated base jack in the direction of DC power plug insertion, and is used for the computer display to make it work normally.