This pair of power supplies is ideal for running extremely high wattage configurations, like quad video cards, in chassis which have mounting for both standard ATX and smaller SFX power supplies. The specific combination used here is a 1300W ATX and 1000W SFX-L, both manufactured by Super Flower, for a combined capacity of 2300W. Using this setup requires two outlets to plug into, and to ensure proper operation they should either be on separate 15 amp circuits or combined on a 20 amp circuit.
Note: This power supply combo requires one 20-amp or two 15-amp circuits and may block some drive bays.