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Corsair > 
Item#: N82E16817139004

CORSAIR Enthusiast Series CMPSU-550VX 550W ATX12V V2.2 SLI CrossFire 80 PLUS Certified Active PFC Compatible with Core i7 Power Supply

  • ATX12V V2.2
  • 80 PLUS Certified
  • 90 - 264 V 50/60 Hz
  • +3.3V@30A, +5V@20A, +12V@41A, -12V@0.8A, +5VSB@3A
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Okay, it's a power supply. Not much excitement there unless it starts smoking, right? But if you can't work up excitement, how about some respect? Like the 41 Ampere +12V rail (and there's just the one +12V rail, so you don't have to balance your power needs by hand.). How about the ability to auto-sense your input voltage from 90Vac to 264Vac, 50/60Hz? No more damaging your supply because the voltage selector was in the wrong setting.

Run cooler, too, because it can be up to 85% efficient, meaning less waste heat from the supply. Compatible with both ATX 2.0 and ATX 2.2 systems, it includes long cables for even full-sized tower installations. Nvidia SLI support It includes power connections for six SATA drives. A 120mm variable speed fan with double bearings gives good airflow with minimal noise. Active power factor correction helps deal with inductive loads (drive and fan motors, mostly).

A modern power supply for modern computers, just for you.

  • newegg ATX12V v2.2 Compatible Compatible with the ATX12V v2.2 standard, the Corsair CMPSU-550VX power supply provides maximum power stability to drive the latest Intel and AMD processors as well as other system components.
  • newegg 550W Maximum Power A maximum power of 550W delivers safe, reliable output for high-performance gaming computer systems.
  • newegg 80 Plus Certified The 80 PLUS certified power supply provides high power efficiency of at least 80% at any load between 20% and 100%, saving your money on your electrical bill, reducing heat in your computer's system and prolonging its life.

Learn more about the Corsair CMPSU-550VX


Enthusiast Series


ATX12V V2.2
Maximum Power
1 x 120mm Double ball-bearing fan
Main Connector
+12V Rails
PCI-Express Connector
1 x 6-Pin, 1 x 6+2-Pin
SATA Power Connector
SLI Ready
CrossFire Ready
Up to 85%
80 PLUS Certified
Over Voltage Protection
Input Voltage
90 - 264 V
Input Frequency Range
50/60 Hz
Input Current
9/ 5A
+3.3V@30A, +5V@20A, +12V@41A, -12V@0.8A, +5VSB@3A
>100,000 Hours
UL, CUL, CE, CB, FCC Class B, TUV, CCC, C-tick


1 x Main connector (20+4Pin)
1 x 12V(4+4Pin)
6 x peripheral
6 x SATA
2 x Floppy
2 x PCI-E
Supports the latest ATX12V v2.2 and is backwards compatible with ATX12V 2.01 systems.
Ultra quiet 120mm double ball-bearing thermally controlled fan.
Double forward switching circuitry design offers high efficiency, up to 85% under wide load range.
Dedicated single +12V rail offers maximum compatibility with latest components.
High quality Japanese capacitors provide uncompromised performance and reliability.
Extra long cables support full tower size chassis.

Compatible with Core i7

Manufacturer Warranty

5 years limited
5 years limited

Quick Info


  • Limited Warranty period (parts): 5 years
  • Limited Warranty period (labor): 5 years

Customer Reviews of the Corsair CMPSU-550VX

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  • Bryan L.
  • 4/8/2014 12:07:46 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsIt finally died. RIP

Pros: It worked solidly for 6 years through two PC builds. Never made strange noises and always had enough juice for my 560Ti and other components.

Glad I got it and am going Corsair again because of this.

Cons: It couldn't last forever.

Other Thoughts: Thank you Corsair for a solid PSU. One year longer than warranty.

1 out of 1 people found this review helpful. Did you? Yes No

  • Jack B.
  • 6/8/2013 7:25:58 AM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsStong, reliable PSU. Good buy.

Pros: Performs its job well.

Hasn't died since purchase date over 4 years ago.

Cons: Lots of cables that are quite stiff, which isn't a good thing if you don't have a cable management system in your computer.

Other Thoughts: Need a 500W PSU, that's not modular? Buy this.

Did you find this review helpful? Yes No

  • Herbert K.
  • 12/6/2012 8:56:29 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

3 out of 5 eggsReplaced when failed

Pros: 5 year warranty, single rail 12v, replaced by Corsair when failed after 1 3/4 years

Cons: failed after 1 3/4 years. Had to pay to ship back to Corsair.

Did you find this review helpful? Yes No

  • Blake W.
  • 11/5/2012 11:19:50 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsCorsair wins again!

Pros: I absolutely love this power supply. Even after three years it handles 400-500W of load without undervoltages, low current or dirty power.
Excellent construction
Top notch customer support
Great packaging
Excellent engineering

Cons: None that I've noticed in 3 years

Did you find this review helpful? Yes No

  • Steven C.
  • 9/10/2012 6:17:36 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

1 out of 5 eggsNoisy Grinding FAN

Pros: Nothing

Cons: After only 2 years of use this second one started to sound like a Meat Grinder. High Frequency Noise also a negative. Probably a bad Bearing in the Fan and component in the PSU. Changing to another Brand.

Did you find this review helpful? Yes No

  • John H.
  • 7/21/2012 7:42:33 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsSolid & Reliable

Pros: A solid & reliable power supply. In use for nearly 2 years on a mid range gaming system with a Nvidia GTX 260 and we have never had a problem ever. Highly recommend.

Cons: None

Did you find this review helpful? Yes No

  • Julian R.
  • 11/30/2011 3:51:02 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsDispleased

Pros: Seemingly sturdy design, plenty of power for the rig I'd planned, quiet fan, mail-in rebate was nice.

Cons: It is still working, however very shortly after installing it the unit, it developed the distinctive whine/ring of a failing capacitor. Given that Corsair wanted quite a bit of cash for me to ship it back for a replacement (cash that I did not and do not have), I haven't been able to take them up on their warranty. Hoping it holds up until I can save for something else that likely won't be Corsair.

Other Thoughts: The unit does perform well. I believe I simply hit an unlucky card and was given a dud. More than the failing unit (which is still functioning, just with the whine of that Cap making me wonder of its lifetime) it's the methods of Corsair that bug at me. Hence this unit gets 4 eggs.

Did you find this review helpful? Yes No

  • Anonymous
  • 7/6/2011 12:31:41 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsExcellent

Pros: Easy to install, worked like a charm.
Runs Super Quiet.

Cons: None.

Other Thoughts: Recommend to everyone, however you should strongly consider the 650+ models if running in SLI/Crossfire configuration.

Did you find this review helpful? Yes No

  • George S.
  • 6/18/2011 10:21:43 AM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggs

Pros: Inexpensive and it seems to be a good unit. Quiet and was very reliable up until a couple of days ago.

Cons: None really. It was an excellent unit while it lasted.

Other Thoughts: After 3 1/2 years of heavy use it failed. You would think I would be upset or angry, but no. I felt I got good use out of it and I think it was the heavy use that made it fail. Like one review said it's too expensive to send it in so I got a replacement and hopefully it will last until I go to the dark side next year.

Did you find this review helpful? Yes No

  • Albert G.
  • 6/3/2011 12:37:27 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

2 out of 5 eggs

Pros: Power supplies from Corsair are usually good as I have over a dozen of them.

Cons: This one only had 4 volts over the 5 volt rail in less than a week rendering the computer not bootable and erratic to even get to the BIOS.

Other Thoughts: Corsair 5 year warranty is nice but the cost of shipping has gotten so high.

Did you find this review helpful? Yes No

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Item#: N82E16817139004
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