Review Index:

Corsair Professional Series Gold AX850 PSU Review

Author: Lee Garbutt
Manufacturer: Corsair Components

Specifications and Packaging


The Corsair Professional Series Gold AX850 power supply supports the latest ATX12V v2.31 and EPS12V 2.92 standards and is backward compatible with ATX12V 2.2 and ATX12V 2.01 systems.  The AX850 is rated for a combined, continuous output power of up to 850 watts at 50°C operating temperature.  That’s important as some less reputable manufactures limit their power supply’s advertised capacity by specifying a lower operating temperature (25°C) in the fine print. 

The AX850 PSU incorporates a single +12V output that can deliver up to 70A (840W).  The PSU includes universal AC line input (automatically adjusts the AC line voltage) and active PFC, which makes the unit more environmentally friendly to the local power grid.   

Specifications (courtesy of Corsair)

Packaging and Parts

The Corsair Professional Series Gold AX850 power supply arrived securely packed inside a large retail box showcasing the unit’s features and specifications.  The power supply is protected by thick foam inserts and wrapped in a fancy black cloth bag with the Corsair logo.

In addition to the power supply the box also contains a heavy duty power cord, mounting screws, wire ties, Corsair case badge, a multi-language User’s Manual and a black nylon pouch containing 13 modular cables.

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