While there is a variety of connectors for PCs, the pin (male) and socket (female) design of the Molex design has become recognized and very common for simplicity, reliability, and low cost.
Molex connector is the vernacular term for a two-piece pin and socket interconnection, most frequently disk drive connectors. Pioneered by Molex Connector Company, the two-piece design became an early electronic standard. Molex developed and patented the first examples of this connector style in the late 1950s and early 1960s. First used in home appliances, other industries soon began designing it into their products from automobiles to vending machines to mini-computers.
In such a connector, cylindrical spring-metal …