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Back(https://datasheet.lcsc.com/lcsc/1810121716_Korean-Hroparts-Elec-PJ-320D-4A_C95562.pdf smt female jack horizontal A Series, 4 pole chassis connector, black D-size flange, mirrored self tapping screw holes (A-screw), vertical PCB mount, https://www.neutrik.com/en/product/nc4fav B Series, 4 pole chassis connector, grey D-size flange, self tapping screw holes (A-screw), horizontal PCB mount, http://cherryamericas.com/wp-content/uploads/2014/12/mx_cat.pdf Cherry MX keyswitch, 1.50u, plate mount, http://cherryamericas.com/wp-content/uploads/2014/12/mx_cat.pdf Cherry MX.
- Size 45x10.3mm^2 drill 1.3mm pad 2.6mm.
- Type 106 battery holder.
- -4.17623 5.20841 7.5439 vertex -5.22414 -4.27288 7.35649.