Ready for both SLI and Crossfire video boards with ATX and EPS compatibility, AZZA's Dynamo 850 is ready to take on the duty of supplying the most demanding system. 850 watts of power is more than enough to power your growing system for the next couple of years. You’ll have power for all your peripherals with a 20+4-pin main connector, a 4-pin ATX12V connector, an 8-pin EPS12V connector, two SLI connectors, six SATA connectors, eight IDE connectors and a floppy connector. Cooling is handled by an ultra-large 140mm fan with blue LEDs. A hexagonal grid pattern on the back panel ensures that the components will get plenty of airflow. Fans: 1 x 140mm Blue LED Fan Main Connector: 20+4Pin +12V Rails: 4 PCI-Express Connector: 2 x 6-Pin, 2 x 6+2-Pin SATA Power Connector: 6 Efficiency: >78% Over Voltage Protection: Yes Overload Protection: Yes