- 2 x switching (normalling) stereo jack without switching contact, vertical PCB mount, retention spring instead of latch, https://www.neutrik.com/en/product/nc4fah-0 A Series, 3 pole female XLR receptacle, grounding: separate ground contact to mating connector shell and front panel, horizontal PCB mount, https://www.neutrik.com/en/product/nc4mamh-ph A Series, 3 pole female XLR receptacle, grounding: without ground / shell contact, lateral right PCB mount, self tapping screw holes (A-screw.