The JST-EH is the same as the Lionel Ledco 2.54mm connector. The JST-PH is the same as the widely used 2mm connector on Lionel stuff, don't know who originally made that one. And, of course, the JST-ZH is compatible with the 1.5mm connectors used on a lot of Legacy stuff. Add in the Molex PicoBlade 1.25mm, and you have most of the connectors covered. The Molex Micro-Fit 3.0mm connectors are the black latching connectors used for power to motherboards and to motor driver boards.