OCZ Technology is a company that has been around in various forms since 2000 and is most well known for marketing high performance memory modules. Like a number of other companies OCZ has diversified its offerings to include power supplies, cooling products, and even video cards at times. This diversification into the power supply field was never more obvious than when last year OCZ Technology acquired PC Power & Cooling naming PC Power & Cooling’s Doug Dodson as Chief Technology Officer. With this move OCZ certainly can be seen as becoming a player in the enthusiast power supply market, but OCZ's and PC Power & Cooling's approaches to power supplies have historically been diametric opposites so today’s look at a fifth OCZ power supply, and the first rated at 850W, should be another interesting one. The new OCZ Z Series 850W (OCZ Z850M) breaks one of PC Power & Cooling’s tenets of good power supplies as it is a modular unit. As with the ModXStream PRO 700W this unit is provided by Sirtec (technically now Sirfa).