PowerSpec 500w 80% model:PS500WF power supply

80% Efficiency Ready Offer 80% minimum efficiency at 50% load. Single +12V Output Rail Offers maximum compatibility for the +12V demand. 12cm Fan Whisper quiet 12cm fan brings more airflow volume with less noise thanconvention. Honey Comb Structure with the Best Ventilation Optimum structure for the best ventilation and maximize air flow to solve potential thermal and noise problem. Reduce the air resistance to minimum. Cable with Nylon Sleeve The cable sleeve avoids cable clutter, allows neat and easy installation for an improved airflow. PCI-Express Power Connectors Sufficient and stable current to fully support SLI & CrossFire Systems