Power Supply Dazumba 500 watt * High Efficiency more than 80% form 20%-100% Load * Meets the power demands of EPS Standard * 110-220V Voltage fluctuation and low voltage start up capability * Modularized cable management to eliminate clutter and improve airflow inside the case * Using free plug design,Automatically identify the inserted device,PCIE/CPU/SATA/PATA/Plug and play * Use of 14cm high quality extra silent cooling fan to ensure excellent ventilation * Provides additional 6pin and 8pin connector for double graphic card installation