As is mentioned in the description for that board, it's not just plugging that board in and calling it done. You will have to add in a power supply to the cabinet as Pac use AC voltage directly from the transformer and converts it to DC on the actual pac board. I don't think finding an old ATX (computer) power supply would be an issue. I'd go that route because, in this hobby, ATX power supplies are worth less than arcade style switching power supplies. ... Plus they're a liiiitle more reliable. You will probably have to connect a couple of pins on the power supply to get it to turn on... that's usually done in the computer via the power switch... but can easily be done manually (and permanently) via a small resistor or a piece of wire. I don't remember the pin numbers, but a quick good search will show you which pins you have to tie together on the connector.