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Power Supply

Corsair - CX (2017) 550 W 80+ Bronze Certified ATX Power Supply

( 4.7 Average / 18 Ratings )





CX550 (2017)

Part #





550 W



Efficiency Certification

80+ Bronze

PCI-Express 6+2-Pin Connectors


Completed Builds Using This Part

See All Completed Builds


Merchant Base Promo Shipping Tax Availability Total
Newegg $54.99 -$15.00 +FREE s/h In stock $39.99
$15.00 mail-in rebate
Amazon $54.99 Free two-day shipping with Amazon Prime In stock $54.99
( 8 new from $54.99. Last updated 2 hours ago. )
Newegg Business $54.99 +$2.99 s/h $57.98
Corsair $79.99 In stock $79.99+
* 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:


KRCaulfield 49 points 22 months ago
from completed build First PC Build

Ample power for my build, feels solid, and is incredibly quiet. It isn't modular, but to be honest that didn't really matter with the S340's HDD/PSU bay. Everything is tucked away nice and neat. At the price paid it was a no-brainer.

keeper777 12 points 18 months ago
from completed build Ryzen VR

Got it for around $30 after the mail-in rebate, definitely worth it. The cables look good too, all black.

Oregonstate00 15 points 15 months ago

Enough power for my system, reputable brand, it just works.... and my case has a PSU shroud to hide the mess of unused cables.

nizamtas 9 points 15 months ago
from completed build 1st PC Build - Lessons learned...

Get a modular PSU is what I have learned. Dealing with these power cables which you can't remove is the worst.

Otherwise good PSU.

Plenty of wattage for this build. I found that you want your wattage ceiling to be about 200 watts above the max estimated wattage for your components.

The GPU is between 30W - 120W.

The CPU is between 8W-65W.

The MB is between 15W-60W.

Law3 8 points 12 months ago
from completed build Angel Fire

I read so many contradicitons about PSU's what's good, bad, great, better value or more efficient, I decided to go with the CX550 and due to the case affording plenty of space for storage I didn't feel the need to go modular.

DannyB3 6 points 11 months ago
from completed build Phanteks Gaming Build

People talk bad about the Corsair CX series, but the 2017 version has long black sleeved cables, solid efficiency, and a five year warranty. Very happy with mine.

three8one 32 points 11 months ago
from completed build Cigar Lounge

Why the hell did I not buy a fully modular PSU..? Other than that it works flawlessly.

SpicyMemesKid 10 points 8 months ago

Good and reliable power supply, I have always trusted corsair products

LegoCuber 8 points 6 months ago
from completed build Corsair RGB Build

Does what it needs to without blowing the pc up. I was ok with it being modular because I used all the cables anyway. Love how they are not mustard and ketchup colored as well.

TheDankKn1ght 20 points 6 months ago

Despite the fact that its not modular, it comes with full black cables and is silent.

Cable management would have been easier if it didn't ship with approximately 6.5 billion SATA cables. Would buy again If you are low on cash.