Corsair VS450 VS series 450-watt ATX power supply unit (PSU) for desktop PC computer. The VS450 delivers a guaranteed 450 Watts of continuous power. With 0.99 Active Power Factor Correction, you get the peace of mind from knowing that your components are protected from uneven power delivery. And, a dedicated single +12V rail saves you from the hassle of balancing your components across multiple power cables. Conforms to ATX12V v2.31 standard, and is backward compatible with the ATX12V 2.2 and ATX12V 2.01 standards. Warranty 2 Years