Corsair RM850x 850Watt 80 Plus Gold Certified Power Supply White Series is a fully modular power supply. They are built with the highest quality components to deliver a 80 PLUS Gold power to your PC, with virtually silent operation and special features. Elegant White Colored Casing The elegantly beautiful white finish does make your build truly stand out. The dimension is 7.09 x 3.39 x 5.91 inches, while the weight is 1.596 kg. A PSU Tuned for Low Noise Operation This Power Supply has a specially set fan curve to  ensure Low noise operation. Even at full load, fan noise stays to a minimum. 80 Plus Gold Certified This White PSU can deliver power with approximately 90% efficiency, lowering energy consumption, noise, temperatures and obviously your power bill. 100% premium hi-end CAPACITORS By using high-end electrolytic capacitors, the RM850x delivers the unwavering power and long-term reliability that is expected from a CORSAIR power supply. Zero RPM Fan Mode The PSU is equipped with a Zero RPM Fan Mode. At low and medium loads the RM850x’s cooling fan doesn’t spin until you need it. For near-silent operation, At low and medium loads the RM850x’s cooling fan doesn’t spin until you need it. Fully Modular, Flat Cables Flexible fully modular, flat white cables mean that you only connect the cables your system needs, making clean and tidy builds easier. Extensive WARRANTY CORSAIR offers an extensive ten year warranty on all RM series power supplies. You are less likely to run into any problems during the installation or use of an RM power supply. Specifications Key Features Continuous Power 850 W Certification 80 PLUS Gold Fan Size 135mm Lighting Effect No Others Protections OVP (Over Voltage) UVP (Under Voltage) SCP (Short Circuit) OTP (Over Temp) OPP (Over Power) Output Modular Type ATX 12V Ver2.4 Full modular Total Power 850 W Peak Power 850 W Connector Main Power 850 W Warranty Information Manufacturing Warranty 10 year  ..