DescriptionCorsair RMx series power supplies give you extremely tight voltage control, quiet operation, Gold-certified efficiency, and a fully modular cable set. Built with all Japanese 105°C capacitors, they’re a great choice for high performance PCs where reliability is essential. 80 PLUS Gold efficiency reduces operating cost and excess heat, and Zero RPM fan mode ensures virtual silence at low and medium loads. And, the fully modular DC cables make builds and upgrades easy, with clean, great-looking results.80 PLUS Gold certifiedJapanese 105°C capacitorsZero RPM fan modeFully modular cable set80 PLUS Gold certifiedGold certification ensures high efficiency operation for less excess heat and lower operating costs.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.Fully modular cable setInstallation is faster, since you can mount the power supply in the case first, and then attach only the cables you need.Main SpecificationsProduct DescriptionCORSAIR RMx Series RM850x – power supply – 850 WattDevice TypePower supply – internalSpecification ComplianceATX12V 3.1/ EPS12VCybenetics CertificationCybenetics GoldWeight3.28 kgInput VoltageAC 100-240 VOutput Voltage 3.3, 5, 12 V, 5Vsb VPower Capacity850 WattOutput Current 3.3V – 20 A 5V – 20 A 12V – 70.8 A 5VSB – 3 AOutput connectors1 x power 24 pin ATX 2 x power 8 pin EPS12V with detachable 4 pin ATX12V section 3 x 8 pin PCI Express power with detachable 2 pin section 8 x 15 pin Serial ATA power 3 x 4 PIN internal power 1 x 16 pin PCI Express powerModular Cable ManagementYesCooling System140 mm fanDimensions (WxDxH)15 cm x 16 cm x 8.6 cmExtended SpecificationsGeneralDevice TypePower supply – internalSpecification ComplianceATX12V 3.1/ EPS12VPSU Form FactorATXPower DeviceInput VoltageAC 100-240 VFrequency Required47 – 63 HzPower Output Connectors Details1 x power 24 pin ATX 2 x power 8 pin EPS12V with detachable 4 pin ATX12V section 3 x 8 pin PCI Express power with detachable 2 pin section 8 x 15 pin Serial ATA power 3 x 4 PIN internal power 1 x 16 pin PCI Express powerOutput Voltage 3.3, 5, 12 V, 5Vsb VPower Capacity850 WattOutput Current 3.3V – 20 A 5V – 20 A 12V – 70.8 A 5VSB – 3 AModular Cable ManagementYesCybenetics CertificationCybenetics GoldMiscellaneousCables IncludedAC power cable Power 24 pin ATX with detachable 4 pin section modular cable 61 cm 2 x power 8 pin EPS12V modular cable 75 cm 3 x 8 pin PCI Express power with detachable 2 pin section 65 cm 16-pin 12VHPWR power modular cable 65 cm 2 x 15 pin Serial ATA power modular cable 85 cm 4 pin power modular cable 75 cmMTBF100,000 hoursCooling System140 mm fanFeaturesZero RPM fan mode, manual fan speed control, fully modular, Cybenetics A, Modern Standby compatibleCompliant StandardsUKCA, RoHSDimensions & WeightWidth15 cmDepth16 cmHeight8.6 cmWeight3.28 kg