SilverStone ELEMENT series power supply is the synonym of saving electricity and cost, ELEMENT series ST65EF can deliver exceptionally high efficiency with greater than 82% within 20% to 100% loading and its 650W continuous output has dual +12V rails with 50A combined output, moreover, its quad PCI-E 6 pin and single PCI-E 8 pin connectors can support up to the needs of highest graphic cards on the market, For enthusiasts, the compact size (140mm) of ST65EF is another advantage for easy integration for any sizes of chassis and it is ready to deliver in any high powered environment for serious work or play, 650W continuous power output, Class-leading Dual +12V rail(s) with 50A, High efficiency with 82% ~ 85% at 20% - 100% loading, Support single PCI-E 8pin and Quad PCI-E 6pin connectors, Silent running 120mm Fan with 19dBA, Support ATX 12V 2, 3 and EPS 12V, Combined +3, 3, +5V: 150W, Combined +12V: 600W(50A), Input Voltage: 90V ~ 264V, Input Frequency Range: 50Hz ~ 60Hz, PFC: Active PFC (PF>0, 95 at Full Load), Efficiency: 82% ~ 85% at 20% ~ 100% loading, MTBF: 100,000 hours at 25C (at Full Load), Operating temperature: 5°C ~ 50°C, Protection:, Over Current Protection, Over Power Protection, Over Voltage Protection, Short Circuit Protection, No Load Protection, Connectors:, 1 x 24 / 20-Pin Motherboard connector (550mm), 1 x 8 / 4-Pin EPS / ATX 12V connector (550mm), 4 x 6-Pin PCIE connector (550mm / 150mm), 1 x 8-Pin PCIE connector (550mm ), 6 x SATA connector (500mm / 250mm / 250mm), 6 x 4-Pin Peripheral connector (500mm / 250mm / 250mm), 2 x 4-Pin Floppy connector (500mm / 250mm / 250mm / 150mm), Color: Black (Lead-Free Paint), Cooling System: Silent 120mm fan, Noise Level: 19dBA – 35dBA, Dimension: 150 mm (W) x 86 mm (H) x 140 mm (D), Form factor: ATX PS/2, Certification: 80 Plus Bronze, Other: GPU Support list, SKU: SVSTT047