Neutrik NL4MPXX-UC - 4-pin speakON chassis connector for 30 A rms continuous current load, male, black D-shape flange, 1/4" blade receptacles, device standard IEC 62368-1, IEC 61984 certified, IEC 6236/-1 compliant, glass fibre reinforced V-0 material - extremely robust and durable, airtight, black