OCZ has recently released its latest power supply offering in the ZX Series of power supplies. These power supplies effectively replace the Z Series power supplies in the Maximum Performance sector and off an 80 PLUS gold certification, a single +12V rail, modular design and an impressive 5 year warranty. 80 PLUS gold certification means this power supply will run 87% efficient at 100% load. 80 PLUS gold is the second highest certification given to power supplies only out-done by the 80 PLUS Platinum certification. Today we will be taking a look at the 850W version of the ZX Series power supply.