"The OCZ ProXstream 1000W Power Supply not only looks nice and has great warranty, but it also performs just fantastic. The rails on the unit hold up under load whether at default settings or overclocked. There was not one hick-up at all. You will not have any issues supplying enough power to your system with this unit. The unit also comes with enough connectors (and power) to run an SLi setup and more (it comes with four PCIe connectors)...."