Xigmatek Fury 850W Gold (Full Modular / 80+ Gold / LLC D2D & APFC / 12cm FDB Fan / Gen 5 / UK Cord / Color Box) [ 40757/4711409540757 ] SMART ECO SWITCH Smart ECO On: PSU Fan Will Not Spin during System Startup and Idle Loading, It Will Start to Spin When PSU Reach Light to Mid Loading (Approx. at 40% PSU Loading), Fan RPM Will Self-Adjust Smartly According to PSU Actual Operating Loading%. Smart ECO Off: PSU Fan Will Spin At the System Startup, Fan RPM Will Self-Adjust Smartly According to PSU Actual Operating Loading%. SMART ECO FAN Smart ECO Fan Design, A Brilliant Innovation Allow Fan RPM Adjust Automatically to Provide Best Balance Between Noise Level and Cooling, Minimize Noise Level Without Temperature Increase, Maximize Cooling During Heavy System Loading. LLC RESONANT CIRCUIT LAYOUT TOPOLOGY High Conversion Efficiency and Low Electromagnetic Interference. SPECIAL FRONT PANEL TEMPERED GLASS DESIGN DC TO DC CIRCUIT DESIGN Enhanced DC to DC Circuit Design, Offer Stable and Optimized DC to DC Conversion Under Any Loading Situation INGLE +12V OUTPUT Best Power Output and Stability, Compatible with Latest Components. FULL MODULAR BACKPANEL DESIGN ULTRA-EFFICIENCY 80 PLUS Gold Certified, Achieve 90%+ Efficiency at Typical System Load. 120MM FDB BEARING FAN Provide Excellent Cooling Source and Longer Life Time. SUPPORT PCI-E GEN 5.0 GRAPHIC CARD MAX OUTPUT 600W CABLE & CONNECTOR COMPLETE PROTECTION OCP/OVP/OPP/UVP/OVP/SCP Protection, Safety and Reliable. For More Info. Click Here For More Xigmatek Fury 850W Gold Product Click Here