The Platinum Series of Power Supply Units feature a high-tech LLC/full-bridge circuit topology with a unique integrated DC Connector Panel and an embedded Voltage Regulator Module. This design contributes to a near-perfect DC-to-DC conversion that optimizes efficiency by reducing current loss and impedance. The Seasonic Hybrid Silent Fan Control, an industry first, uses advanced 3 phased (Fanless, Silent and Cooling Mode)thermal control to balance between silence and cooling. In addition, a selector switch is provided to allow you to select between the Seasonic S2FC control, without fanless mode or the S3FC fan control, with fanless mode. The Platinum Series is certified in accordance to the 80PLUS highest standards and offers the newest technology and innovation for performance and energy savings with up to 92% efficiency and a true power factor of greater than 0.9PF.