SilverStone OP series OP850-P continues all the special features from OP850, and is designed by SilverStone"s world-class PSU engineering team, The OP850-P can deliver exceptionally high efficiency with greater than 80% during 20% to 100% loading conditions, earning it 80 PLUS certification, With a single +12V rail continuous output up to 70A at 50°C and voltage regulation within 3%, it has truly outstanding stability, Moreover, its quad PCI-E 6 pin and dual PCI-E 8 pin connectors can support up to the needs of the highest graphic cards on the market, For enthusiasts, the compact size (150mm) of OP850-P is another advantage for easy integration for any sizes of chassis, For the most ardent enthusiasts or those who are simply looking for the best available power supply, SilverStone OP850-P can be seen as the only choice, Class-leading single +12V rail with 70A, 850W continuous power output rated up to 50C, Low ripple and noise with 3% voltage regulation, Efficiency greater than 80% at 20% ~ 100% loading, Quad PCI-E 6pin, dual PCI-E 8pin connectors, Silent running 120mm Fan with 20 dBA, Support ATX 12V 2, 3 and EPS 12V, Combined +3, 3, +5V: 180W, Combined +12V: 70A/840W, Input Voltage: 90V ~ 264V, Input Frequency Range: 47Hz ~ 63Hz, PFC: Active PFC (PF>0, 99 at Full Load), Efficiency: >80% at 20% ~ 100% loading, MTBF: 100,000 hours at 25C(at Full Load), Operating temperature: 0°C ~ 50°C, Protection:, Over Current Protection, Over Power Protection, Over Voltage Protection, Short Circuit Protection, Connectors:, 1 x 24 / 20-Pin Motherboard connector (550mm), 1 x 8-Pin EPS 12V connector (550mm), 1 x 4-Pin ATX 12V connector (550mm), 2 x 8-Pin PCIE connector (550mm0, 4 x 6-Pin PCIE connector (550mm / 150mm), 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: 20dBA – 30dBA, Dimension: 150 mm (W) x 86 mm (H) x 150 mm (D), Form factor: ATX PS/2, Certification: 80 PLUS, SKU: SVSTT109