Corsair Professional HX850 850W Power Supply Review

Exterior Impressions

Other than being predominantly black save for a few off-blue highlights, the first thing you will probably notice about the HX850W is that it is slightly longer than most other 850W power supplies. Being slightly larger than the ATX standard, it doesn’t quite match the length of its big brother the HX1000. The finish is also what we have come to expect with a durable powder coat that resists both scratches and fingerprints.


The 140mm fan may dominate the upper side of the HX850 but in our experience; the bigger the fan, the less noise it produces.


Other than the color used for the labels, there really isn’t much to distinguish the HX850W from the rest of Corsair’s lineup. The rear of the unit holds the usual on/off switch, a power receptacle and a perforated metal exhaust grille.


The modular interface is simple yet effective and eliminates the possibility that you will plug a cable into the wrong connector. Basically, all of the standard peripheral cables are attached to the black 6-pin connectors while the blue ones are dedicated for the PCI-E cables.