jonnyGuru "OCZ does have a very good high performance offering here...the Z series does just about everything right here. The modular cables all have good length to them, there are tons of SATA connectors with enough 3.3V/5V capacity to power a good twenty hard drives or so, and there aren't too many hardwired cables to manage. OCZ's new Z series has a lot going for it. It's super efficient, it controls ripple and noise well, and it's a solid design that doesn't mind full power operation at high temperatures."

HardOCP "The OCZ Z850M represents the best overall performing OCZ branded power supply we have seen to date. The Z850M features very good build quality, good voltage regulation, excellent efficiency that meets 80Plus Gold Standards at 25C, very good DC Output Quality, and is quiet for an 850W power supply. Given that it is an 80Plus Gold rated unit there is certainly some well deserved price premium to be had there. Undoubtedly, the OCZ Z850M is a great PSU worthy of many enthusiast systems."

Daily Tech: Holiday Gift Guide "Saving money through greater efficiency has been a hot topic this year. The new Energy Star 5.0 specification requires 80 PLUS Bronze level certified power supplies. Most computers use less than 400 watts at load, but a basic engineering guide is for power is to have double what you require. Most PSUs are usually at their most efficient around 50% of their maximum rated load. OCZ has also been investing heavily in power supplies since it bought PC Power & Cooling in 2007. The Z-Series PSUs feature Gold or Silver level 80 PLUS certification."

DOS/V Power Report (Japan) "OCZ’s Z850M was the first 80+GOLD certified model to be available in Japan. This model offers a very stable output."

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