8073 lines - 2 x switching (normalling) stereo jack B-gauge type (T/TN/R/RN/S/SN), https://www.neutrik.com/en/product/nj6tb-v M Series, 6.35mm (1/4in) stereo jack, switched, with full threaded nose and straight PCB pins, https://www.neutrik.com/en/product/nmj4hhd2 M Series, 6.35mm (1/4in) stereo jack, vertical PCB mount, asymmetric push, https://www.neutrik.com/en/product/nc3fah1-da 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/nc4mav B Series, 3 pole male XLR receptacle, grounding: without ground/shell contact, horizontal PCB mount, retention spring, https://www.neutrik.com/en/product/ncj6fi-v Combo I series, 3 pole XLR female receptacle with 6.35mm (1/4in) stereo jack, switched.