Its that type of connector that conduct electricity when you put a linker(that thing in the hand) to plug and play multiple objects between them. I dont have the pcb I am trying to implement this type of connection in my project
It's a block of 4 spring contacts, something like this. This is just a contact block - you would need to make some kind of guide to hold the "linker" in position. The linker could just be a circuit board with the appropriate traces.