World Class Quiet and Efficiencybe quiet! Straight Power 11 Platinum 850W raises the bar for systems that demand virtually inaudible operation and outstanding efficiency.FEATURES80 PLUS Platinum certification with an outstanding efficiency of up to 93.8%Virtually inaudible operation thanks to a Silent Wings 3 135mm fanBig funnel-shaped fan opening of the PSU case for high airflow intakeWire-free on the DC side inside the PSU for enhanced cooling and longevityModular cables for maximum build flexibilityAdvanced stability and voltage regulation thanks to LLC, SR and DC-to-DCFour high-performance 12V railsPowerful multi-GPU support with two PCI-Express connectorsJapanese 105C-rated capacitors ensure stability and reliabilityPower signal stability unmatched in its classErP and Energy Star 7.0 ready5-year manufacturer\'s warrantyProduct conception, design and quality control in GermanySPECIFICATIONS:General dataModel - Straight Power 11 Platinum | 850WContinuous power (W) - 850Peak power (W) - 920Form factor ATX 12V - Version 2.51Form factor EPS 12V - Version 2.92Modular cable management - YesTopology - LLC + SR + DC/DCWire-free design (DC-side) - YesVoltage (Vac) - 100 - 240Frequency (Hz) - 50 - 60Input current (A) - 10/5PFC - activePower factor at 100% load - >0.99Compliant to Intel C6/C7 - YesPower consumption in standby (W) - 0.16Average life time (h / 25C) - 100.000Operating temperature up to (C) - 40Output12V rails (multi-rail operation) - 4+3.3V (A) - 25+5V (A) - 25+12V1 (A) - 21+12V2 (A) - 21+12V3 (A) - 26+12V4 (A) - 26-12V (A) - 0.5+5Vsb (A) - 3Max. combined power 12V (W) - 849.6Max. combined power 3.3V + 5V (W) - 150Hold-up time (ms @ 100%) - 22,0Power good signal - 100-150msFan / Cooling technologyFan type - be quiet! Silent Wings 3+SilentWings - YesMotor technology - 6-pole fan motorBearing technology - FDBFan size (mm) - 135Max. fan speed (rpm), temperature-dependent - 2,100dB(A) at 20% load - 7.7dB(A) at 50% load - 7.9dB(A) at 100% load - 22.0ProtectionOCP (over current protection) - YesOVP (over voltage protection) - YesUVP (under voltage protection) - YesSCP (short circuit protection) - YesOTP (over temperature protection) - YesOPP (over power protection) - YesSafety certificationCE - YesCB - YesT�V - YesFCC - YescTUVus - YesRCM (Australia) - YesBSMI - YesCU (Russia) - YesCCC - YesEco / Efficiency80 PLUS certification - PlatinumEfficiency (%) at 230V, 20% load - 92Efficiency (%) at 230V, 50% load - 94Efficiency (%) at 230V, 100% load - 92,7