Internal connectors are found inside a computer case. There are two primary types of connectors found internally: socket connectors and power connectors. Socket connectors are designed for use with flat ribbon cable, and are generally used to transfer data among devices. A socket connector mates with pins arranged into a header. Usually a header is built onto a piece of circuit board, or integrated into an electronic device. Socket connections are held in place by the friction of the pins. Most socket/header interfaces are built to similar dimensions; header pins are 0.025 inches in width, and spaced 0.10 inch apart. Power connectors are used to supply and distribute power to internal devices inside the computer. They normally use the friction of the connector bodies to stay in place.
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