My current machine uses 4-pin XLR connectors between control box and steppers. These are still available but only at UK prices - the 4-pin male plugs seem like rocking-horse droppings on Aliexpress although panel sockets are available (but not sure why...).

What connectors do people generally use in this situation? I used XLR because they are latching so reasonably reliable in terms of vibration, and adequate current/voltage ratings. Not sure if there is a better choice, though.