'This connector fully complies with the IEC 62368-1 device standard, due to its component certification according to IEC 61984. It is a 2-pole chassis connector, with a size D flange in black, countersunk holes, and flat tabs of 3/16''. Cannot be mated with the 4-pole cable connector. speakON panel mount connectors are the standard chassis connectors for speaker/amplifier interconnections. They feature a unique metal locking system, which establishes contact only when completely locked. speakON receptacles are robust, versatile and easy to terminate.'