I dunno i had a very bad experience with ULTRA PSU was a 1000 watt with all the passes , stickers, good reviews bla bla.. It didnt handle my setup so i ditched it and picked up a Corsair HX850, have never had any problems since. I tried using the ULTRA PSU on an older comp i have and it ended up just dieing. Go with a product thats reliable , highly used, and known. Reviews are just smoking mirrors