Mm LED Added schmancy pcb for v1 front panel and Pin 1, steel retention lug, horizontal PCB mount, https://www.neutrik.com/en/product/nc3mav B Series, 3 pole female XLR receptacle, switching contacts, grounding: separate ground contact to mating connector shell and front panel, vertical PCB mount, retention spring instead of latch, https://www.neutrik.com/en/product/nc3fah-0 A Series, 3 pole female XLR receptacle, grounding: mating connector shell and front panel, lateral right PCB mount, https://www.neutrik.com/en/product/nc3maah AA Series, 3 pole male XLR receptacle, grounding: separate ground contact to mating connector shell and front panel, lateral right PCB mount, https://www.neutrik.com/en/product/nc4mafh-ph A Series, 3 pole female XLR receptacle, grounding: without ground/shell contact, horizontal PCB mount, https://www.neutrik.com/en/product/nc3maav-0 AA Series, 3 pole female XLR receptacle, grounding: mating connector shell and front panel, horizontal PCB mount, https://www.neutrik.com/en/product/ncj6fi-h-0 Combo I series, 3 pole female XLR receptacle, grounding: separate ground contact to mating connector shell to pin1 and front panel, steel retention lug, lateral right PCB mount, retention spring instead of latch, https://www.neutrik.com/en/product/nc3fah2-0 A Series, Chassis connector H female (A series layout), mates with Phoenix MSTB 2,5/3-ST, horizontal PCB mount, retention spring instead of latch, https://www.neutrik.com/en/product/nc3fahl-0 A Series, 4 pole.