"The Vulcan MT line of power supplies are currently available in four wattages; 650, 850, 1000 & 1200. I'm looking at the Ikonik Vulcan MT 1200 Power Supply. The +3.3V rail is 30A & the +5V rail is 28A. There are four +12V rails, the first two are 22A each and the remaining are 38A each, all four have a combined power of 99A. This is the type of PSU you need if you have a hardcore computer gaming rig with a top of the line multiple video card setup! Watch the video to find out more..." ~http://www.3dGameMan.com