COOLMAX M-500B power supply is simple with more connectors for users. It has 5 SATA and 5 Peripheral connectors ready to power all your devices. And for users with high end CPUs and video cards it has 8 pin Xeon connector and PCI-E connector ready. With a fast cooling system at its quietest intensity level possible and its efficient air ventilation design the M-500B is able to run the 120mm fan at slower speeds providing a quieter yet cooler environment. Compatible with ATX 12V 2.3 / EPS 12VHigh energy efficiency115V 230 switchable power supplyQuiet PerformanceSilent 120mm Cooling Fan