The COUGAR SL500 power supply is a great blend of performance, quality and affordability demanded by system builders and DIY professionals. Dual +12v rails provide enough power for core components and high voltage stability to keep components safe. Rest assured that the entire system could be well taken care of due to multi-protection circuitry, while the 120mm fan delivers efficient, quiet cooling keeping the PSU always running at peak performance. Features: Up to 80% of efficiency Created for usage with current and next-generation multi-core CPU platforms Extremely Low Noise Level, fan speed automatically governed based on the temperature Support PCI Express 2.0 next-generation Nvidia & ATI/AMD graphic card Provide high voltage stability to keep components safe Over-Voltage-Protection (OVP)/ Over-Power-Protection (OPP)/ Under-Voltage-Protection (UVP)/ Short-Circuit-Protection (SCP)