3 pole female XLR receptacle, grounding: mating connector shell to pin1 and front panel, lateral left PCB mount, Retention spring instead of latch The 'State of the Art' receptacle. Round plastic body XLR PCB mount panel connector. These have the smallest size and highest packing density (23mm between centres). New designed tulip type contacts with hard gold plating and polished contact areas. UL recognized component.