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Power Supply

Corsair - 850W 80+ Platinum Certified Fully-Modular ATX Power Supply

( 4.9 Average / 21 Ratings )






Part #

(or) CP-9020073-UK
(or) HX850i
(or) CMPSU-HX850i
(or) CP-9020073-NA
(or) CP-9020073-EU




850 Watts





Efficiency Certification

80+ Platinum




+3.3V@25A, +5V@25A, +12V@70.8A, -12V@0.8A, +5VSB@3A

PCI-Express 6+2-Pin Connectors


Completed Builds Using This Part

See All Completed Builds


Merchant Base Promo Shipping Tax Availability Total
Amazon $189.89 Free two-day shipping with Amazon Prime $189.89
( 5 new from $189.89. Last updated 2 hours ago. )
Newegg $189.89 +FREE s/h In stock $189.89
Newegg Business $189.89 +FREE s/h $189.89
B&H $189.99 +FREE s/h In stock $189.99
Corsair $199.99 Out of stock $199.99+
* Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.

Price History (Excluding Tax) History:


GAROLDonPC 29 points 33 months ago
from completed build Neptune

Exactly what you expect from a tier one unit.

rktoast 32 points 32 months ago

Looks great, matches the case, came in like a velvet bag, over all great build. I have had no problems with this power supply, however I did find the cables it came with to be rather stiff and... boring. Other than that fantastic part with no problems. Did I mention it came in a velvet bag with about 300 cables?

Mythgan 10 points 28 months ago

simply Amazing and does his job very well . It comes with a lot of wires and a bag to keep em in .

Neowc 4 points 27 months ago
from completed build The Tiburón (Shark)

Works like what it is supposed to do. Initially wanted a HX750i but there was none in stock so I just went with this cause an additional 100W was about 40+ dollars.

Scadoosh118 15 points 22 months ago
from completed build Asus Corsair Black and Gold

I like this power supply very much. It's overkill for my rig: I can't even get the fan to spin with 2 video cards. I wish I got the gold efficiency kind because the side sticker has blue text, and has had to be covered with electrical tape. The cables look nice, and are flat.

Noblechiefton 14 points 22 months ago
from completed build The Chameleon

more than enough for my needs not held back by link software

joeninja 14 points 21 months ago
from completed build White Phantom

perfect PSU that makes zero noise.

ctmuck 15 points 20 months ago
from completed build 6700K R9 390

Quality Power Supply at a good price. The one drawback is the cable choice. Far too many multiples for my taste. I.E. Rather than any single or double sata power cables, every one of them has 5 power connections. There are no cables for just a 6 pin or 8 pin VGA power; they are all 2x6+2 and very few cards need 16 pins of extra power. I put a lot of time into it and still have messy cable management in the back. Part of the reason for buying a modular power supply is to be able to cable manage well. This defeats that purpose. I will be ordering some new braided cables to replace these for extra $$$ to make my case look nicer.

Aaronb1874 20 points 18 months ago
from completed build Goldfinger: Project Midas

Very reliable. Have yet to even hear the fan spin up.

edbeef11 41 points 16 months ago
from completed build Shadow

Overkill for this build but awesome power supply anyways!