A DC Power Plug is a type of electrical connector used to supply direct current (DC) power to various devices. These plugs come in different sizes and shapes, allowing them to fit into corresponding sockets on devices like laptops, cameras, and other electronic equipment. The design ensures a secure connection, preventing accidental disconnection during use. Typically, a DC power plug consists of a cylindrical shape with a central pin for the positive connection and a surrounding sleeve for the negative connection. This configuration helps to maintain the correct polarity, which is crucial for the safe operation of devices powered by DC electricity.