Headers and wire housings are the essential components of an electrical connector system. Headers, which are sometimes referred to as pins or male connectors, are electrical pins that extend out from a device and are used to create an electrical connection. Wire housings, which are also known as receptacles or female connectors, receive the header and form an electrical connection. Headers and wire housings typically have a uniform size and shape, allowing for easy interconnection between multiple devices or wires. They also have a wide range of applications, from automotive electrical systems to telecommunications and industrial wiring. Headers and wire housings are used in a variety of applications; from industrial and electrical wiring, telecommunications, and automotive applications, to home automation and computer networking.