Audio Jack, 2 x switching (normalling) stereo jack (T/TN/R/RN/S/SN), https://www.neutrik.com/en/product/nj6fd-v 6.35mm (1/4 in) Vertical Jack, 3 x switching (normalling) stereo jack without switching contact, horizontal PCB mount, https://www.neutrik.com/en/product/nc3fav1 A Series, 3 pole female XLR receptacle, grounding: without ground/shell contact, lateral left PCB mount, replaces NL4MD-V-1, https://www.neutrik.com/en/product/nl4mdxx-v-3 speakON Chassis Connectors, 4 pole male XLR receptacle, grounding: mating connector shell and front panel, steel retention lug, vertical PCB mount, retention spring, https://www.neutrik.com/en/product/ncj9fi-v Combo I series, 3 pole female XLR receptacle, grounding: without ground/shell contact, horizontal PCB mount, https://www.neutrik.com/en/product/nc3fbhl1 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/nl4md-v-1 speakON Chassis Connectors, 4 pole male XLR receptacle, grounding: separate ground contact to mating connector shell to pin1 and front panel, horizontal PCB mount, additional ground contacts, https://www.neutrik.com/en/product/nc3mbv-e B Series, 3 pole male XLR receptacle, grounding: separate ground contact to mating connector shell and front panel, horizontal PCB mount, self tapping screw holes (A-screw), vertical PCB contacts (4 switching contacts), https://www.neutrik.com/en/product/nl4md-v-s speakON Chassis Connectors, 4 pole male XLR receptacle, grounding: mating connector shell and front panel, lateral right PCB mount, https://www.neutrik.com/en/product/ncj6fi-h-0 Combo I series, 3 pole XLR female receptacle with 6.35mm (1/4in) switching stereo jack without switching contact, horizontal PCB mount, https://www.neutrik.com/en/product/nc3faah1 AA Series, 3 pole female XLR receptacle, grounding: separate ground contact to mating connector shell to pin1 and front panel, horizontal PCB mount, retention spring instead of latch, https://www.neutrik.com/en/product/nc3fah1-0 A Series, 3 pole male XLR receptacle, grounding: separate ground contact to mating connector shell to pin1 and front panel, horizontal PCB mount, https://www.neutrik.com/en/product/nc4mbv A Series, 3 pole male XLR receptacle, grounding: without ground/shell contact, vertical PCB mount, https://www.neutrik.com/en/product/nc3mafh-ph A Series, 3 pole XLR female receptacle with 6.35mm (1/4in) jack receptacle, horizontal pcb mount, https://www.neutrik.com/en/product/nlj2md-h speakON Combo, 2 pole chassis connector, black D-size flange, self tapping screw holes (A-screw), horizontal PCB mount, https://www.neutrik.com/en/product/nc3maah.