Rosewill 1600-Watt Intel Haswell Ready 80 Plus Silver Modular Gaming Power Supply ATX12V HERCULES-1600S Intel Haswell CPU Ready Dual strong 12V rails - idea for Gaming system 1 x Silent 135mm Fan with Auto Fan Speed Control for better silence Turbo fan switch allows to have fan work in full-speed LED indicator of power status: Standby, Operation, Non-Operation Turbo fan switch allows to have fan work in full-speed LED indicator of power status: Standby, Operation, Non-Operation Active-PFC with auto AC-input voltage adjustment (100-240V)