The EVGA SuperNOVA NEX1500 Classified power supply allows users to switch between single or multiple 12V rails, as well as access to the exclusive SuperNOVA software, which lets users make voltage and fan adjustments. Not only that, the power supply is also capable of delivering up to 1650W of power output when using Overclock Mode, but this requires 230 volts of AC power.
Source: Toms Hardware | OCZ launches PC Power & Cooling Silencer MK III 1.2kW PSU