The (6) duplex outlets are wired to one male cord end adaptor, bottom edge of picture, yellow. One power cord, usually a good #12 gauge, grounded extension cord, supplies all the power to the Fort Pitt Modular display. At times the twelve outlets shown are used. Extension cords, to each member's modules, for their display pieces, but still one circuit. One wall wart pictured is for the TMCC base unit, left in picture. The other wall wart is power to an SC-2 controller on the "Y" module controlling (6) switch combinations. With today's accessories there are a lot of Wall wart transformers that need an outlet. This is one of the Fort Pitt Modules, note all the 110 volt wall wart transformers and two short plug strips.
