Written analysis
be quiet! Power Zone 2 850W at a glance
The be quiet! Power Zone 2 850W is a 850 W ATX power supply built to the ATX 3.1 generation. Efficiency is listed as 80 PLUS Platinum. Cables are modular. It supports fan-stop at low load.
The calculated capability score is 78.3, averaging the available wattage, recorded efficiency percentage, and warranty inputs against fixed references. Listed warranty is 10 years. +12V output is 71 A.
Best fit: Performance desktops whose calculated component load fits comfortably within a 750–999 W supply.
Platform and cooling
Dimensions are listed as 160 x 150 x 86. Cooling fan size is 140 mm. The unit uses 1 +12V rail at up to 71.00 A per rail. Certifications include 80 PLUS® Platinum.
Current value
At $120, price per kilowatt is $141.06. Capability / price is 65.3 and wattage value is 56.7. Compare nearby supplies below; wattage alone does not determine value.
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