OCZ ZX Series 850w Power Supply
 

Like many other manufacturers at CES 2011, OCZ had a collection of their most recent hardware on display, including solid state drives, memory and power supplies. It's one of the latter that we have for review today, the ZX Series 850W. The ZX replaces the Z Series as OCZ's Maximum Performance line of power supplies, and is available in 850W, 1000W and 1250W capacities. These models all feature 80Plus Gold efficiency levels, multi-GPU support and OCZ's exclusive five year PowerSwap Warranty.

http://www.ocia.net/reviews/oczzx850/page1.shtml