The 99 0409 00 04 is a 4-contact 125V/3A unshielded straight subminiature male Circular Connector with gold-plated brass contacts, PBT (UL94V-0) contact body and PA (UL94VH-B) housing. The 712 series plug with M9 screw locking system, solder termination, cable mounting style. It accepts 24AWG (0.25mm2) wire, 3.5 to 5mm cable outlet.