- 2 x switching (normalling) stereo jack and switching ground contact, horizontal PCB mount, retention spring, https://www.neutrik.com/en/product/ncj5fi-v Combo A series, 3 pole female XLR receptacle, switching contacts, grounding: separate ground contact to mating connector shell and front panel, vertical PCB mount, https://www.neutrik.com/en/product/nc5fbv-sw B Series, 5 pole male XLR receptacle, grounding: separate ground contact to mating connector shell and front panel, horizontal PCB mount, https://www.neutrik.com/en/product/ncj6fi-h-0 Combo I series, 3.