XFX P1-850S-NLB9 ATX12V & EPS12V Power Supply - 85%

Not all wattages are the same. Traditional Multi-Rail PSUs might claim to have higher wattages, but it's achieved by combining multiple smaller, lower wattage rails. Each smaller rail isn't capable of running multiple high-power devices (GPUs, CPUs) because the individual wattage caps are simply too low. EasyRail Technology provides true total wattage - when you expect 200W, EasyRail gives you 200W. One Rail, One Setup.