Exclusive to Slotcarspacesolutions is the Variable voltage and amperage power supply with Carrera digital plug and blade type fuse holder. This package includes the Carrera digital plug a fuse holder (one 5 amp fuse and one 7.5 amp fuse) 10 feet of cable with 2 gold banana plugs that directly plug into the Wanptek DC power supply. Adjustable voltage allows you to go from 124 cars to 132 cars with the turn of a dial. No more fading of power when running more than 4 cars. Adjustable amperage allows you to run as many as 6 124 cars at full power something the stock power supply just cant produce. This is a must have for Carrera digital racers who have both 124 and 132 cars or the home track that has numerous digital accessories.