The power supplies of the Corsair RM850x series are equipped with the highest quality components to provide your PC with 80 PLUS Gold certification. With Japanese 105°C capacitors, users can rely on the durability and reliability of an RM850x power supply. The Zero RPM mode means that a power supply from the RM850x series is virtually silent under low and medium loads. Even at maximum power, a quiet fan ensures silent operation. Fully modular cables make PC builds and upgrades easy, as you only need to install the cables that your system requires. Quiet, efficient, and reliable - an RM850x power supply offers everything you need to power your high-performance system.