This is the PCB and Panel to build the #1161 Dual Buffered Multiple, A module designed to split and buffer signal to make sure the juice doesn't get sucked out of the signal plugged in. It also has a Bi colour signal LED to signal positive and negative voltages.
The info on this project is over here :-
It is in KOSMO format and does require self assembly and component sourcing, Please check the product page for more info.