Late last month we took a look at OCZ's current budget power supply, the ZS series 750w power supply. This unit featured a single 12v power rail, 80 Plus Bronze certification and a hardwired construction. The PSU performed just fine in our evaluation but one thing that many people (myself included) typically look for in a modern power supply is a modular design. Today we have an upgraded version of that power power supply that falls under OCZ's High Performance category, OCZ's ZT series modular power supply.


OCZ released the ZT series power supply line last month available in 550w, 650w and 750w capacities. We will be looking at the midrange 650w today using the same hardware configuration that we tested the ZS on. The retail box for the ZT series is very similar to that of the ZS, only this time with yellow accents instead of the blue / purple coloring on the ZS. One thing I noticed right away is the five year warranty badge which is two years more than the ZS offers. Let's have a look at the official specifications, borrowed from OCZ's website.


The ZT features a single 12v rail design and a higher ambient temperature rating (45C vs 40C) as well as a slightly larger 140mm ball-bearing cooling fan. This power supply is also ErP (Energy Related Products) compliant which means it requires very little power in standby mode - specifically, the whole system must draw less than 1W in either standby or off mode. Those items aside, there aren't any real surprises so let's move ahead and check out the package contents and the ZT series PSU in greater detail.