With 7 isolated outlets and the ability to handle 9, 12 and 18
  volt DC pedals plus a 12 volt AC box, T-Rex FuelTank Goliath will
  power almost every pedal you own – and then some. Each of
  Goliath’s standard outlets delivers a mammoth 450 mA of 9
  or12-volt power – which is enough to keep even the most demanding
  T-Rex pedals pumping out the tone. And on top of that, you get an
  18 volt DC outlet (250mA) and a 12 volt AC outlet, that also
  delivers 450 mA of ferocious T-Rex power. That adds up to nearly
  3000 mA of simultaneous power!