Cooler Master adds the M850 to the Silent Pro series, giving extreme overclockers and/or ultra high-end systems all the power they need. With up to 66A on a single 12V rail, these power supplies deliver where it counts and won’t have any problems powering even the most demanding multi-graphic card systems. These units feature flat modular cables for improved airflow and cable management. It also comes with shock absorption silicon pads to remove possible vibrations. Fans: 135mm ultra silent fan Main Connector: 20+4Pin +12V Rails: Single PCI-Express Connector: 6 x 6+2-Pin SATA Power Connector: 9 Power Good Signal: 100-500ms Hold-up Time: >17ms Efficiency: 85%