Abstract: Embodiments of an electrical connector may have a first end portion on which a first interface is arranged and a second end portion on which a second interface is arranged. The first interface and second interface can each be connected to a respective mating electrical connector. The first interface may form at least two contact element pairs with the second interface, each of the contact element pairs having a first contact element which is associated with the first interface and a second contact element which is mechanically connected to the first contact element and is associated with the second interface. A third interface between the first end portion and the second end portion may electrically and mechanically connect at least one of the contact element pairs to a printed circuit board on which the electrical connector may be mounted.

Abstract: A cable connector includes: a housing including a cylindrical fitting protrusion to be inserted into a fitting opening of a mating connector; and a retainer that enables insertion of the fitting protrusion into the mating connector only when a cable accommodated in the housing is at a regular insertion position, in which the retainer includes a lock protrusion that is at a position where fitting with the mating connector is prevented when a cable accommodated in the housing is at an irregular insertion position, and is movable to a position where fitting with the mating connector is enabled when the cable is at the regular insertion position.