Product information: S12 Energy+ 650W Silent ATX2.0 Power SupplyIn current times of high energy costs and environmental awareness, Seasonic engineers focused the efficient utilization of energy. By incorporating state of the art double forward converter circuit design with active power factor correction, the S12 ENERGY+ power supplies achieve industry leading efficiency ratings. This efficiency increase over standard power supplies enables end users from governmental organizations and companies to private individuals to enjoy substantial energy savings and operating cost reductions. The S12 ENERGY+ series also incorporates a dual magnetic amplifier circuit to achieve a class leading 3% regulation on the all important 12VDC rail which meets the high power requirements of high-end graphic cards, CPU’s and peripherals. The uniqueness of this feature is the ability to maintain line stability even at maximum stress loads, which is a top priority for power users, heavy gamers and over-clockers. Additional performance features in the S12 ENERGY+ include the exceptional Seasonic proprietary Smart & Silent Fan Control [S2FC], a 12cm ball bearing fan mounted on soft rubber cushions, and honey comb shaped ventilation holes to provide the ultimate performance in cooling and silence. These power supplies also include Seasonic’s patented Dynamic Load function to ensure compatibility with main-boards and peripherals. The S12 ENERGY+ units comply with the latest Intel ATX12V & EPS 12V specifications and are compatible with Intel Prescott, AMD64 and approved for all high end graphics cards. ATX, BTX and EPS systems are supported with a 24 Pin (20 Pin convertible) and 4 Pin and 8 Pin main-board connectors.