Corsair HX1500i Fully Modular Ultra-Low Noise ATX Digital Power Supply (Three EPS12V Connectors, 140mm Fluid Dynamic Bearing Fan, Zero RPM Mode, 80 Plus Platinum Efficiency) Black. Fully Modular Cabling: Connect only the cables your system needs, making clean and tidy builds easy. Triple EPS12V Connectors: For full compatibility with modern motherboards. 140mm Fluid Dynamic Bearing (FDB) Fan: Delivers extremely quiet and long-lasting fan performance. Powerful CORSAIR iCUE Software: Create custom fan curves, monitor power settings, and toggle between single to multi-rail overcurrent protection (OCP) on-the-fly. Zero RPM Fan Mode: At low and medium loads the cooling fan switches off entirely for near-silent operation.