StarTech.com Professional 530 Watt ATX12V 2.3 80 Plus Computer Power Supply Active PFC ATX ATX2PW530PRO 80 Plus certified power supplies ensure that minimal power is wasted, and PSU efficiency exceeds 80% to reduce heat output, increase system reliability and reduce energy costs Active Power Factor Correction improves voltage stability and provides environmentally friendlier power usage Quad 12V rails providing dedicated voltage outputs and circuitry ideal to advanced systems and server with multiple sensitive components Higher efficiency, 80 Plus Bronze certification Quad 12V rail design 80mm dual ball-bearing fan Complies with EPS12V rev. 2.8/2.92 and ATX12V rev. 2.3 specifications Full support for Intel and AMD based ATX systems