CORSAIR Professional HX850 850W Fully Modular 80 Plus Platinum Power Supply

Quiet, efficient operation80 PLUS Platinum efficiency reduces operating cost and excess heat, and Zero RPM fan mode ensures virtual silence at low and medium loads.100% Japanese 105 °C capacitorsPremium internal components ensure solid power delivery and long term reliability.Zero RPM fan modeSince the fan doesn't turn on until it's needed, you'll enjoy virtually silent operation at low and medium loads.Power in your handsToggle single +12 V rail or multi +12 V rail mode. In the "SINGLE" position, the full output capability of the power supply's +12 V rail is available to any and all connectors, while in the "MULTIPLE" position, each individual connector has Over-Current Protection so no more than 40 A of current can be delivered on any given cable.Easy installationThe fully modular DC cables make builds and upgrades easy, with clean, great-looking results.