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Item#: N82E16817139001

CORSAIR HX Series CMPSU-520HX 520W ATX12V v2.2 and EPS12V 2.91 SLI Certified CrossFire Ready 80 PLUS Certified Modular Active PFC Compatible with Core i7 Power Supply

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  • ATX12V v2.2 and EPS12V 2.91
  • 100 - 240 V
  • 80 PLUS Certified

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Engineered to support intense power needs, the Corsair HX520w is ideal for high performance and gaming systems. Delivering 520 Watts of continuous power, the power supply is perfect for dual-GPU setups, supporting the latest ATX12V v2.2 and EPS12V 2.91 standards, and backward compatible with ATX12V 2.01 systems. The circuitry design offers up to 80% efficiency under wide load range. Active Power Factor Correction increases efficiency and delivers reliable power. The ultra-quiet 120 mm fan varies the RPM with the temperature, offering greater airflow as needed.

Enhanced modular flexible cables offer easier cable routing and clean up clutter. This increases airflow and aids in heat dissipation. Over Current/Voltage/Power Protection, Under Voltage Protection, and Short Circuit Protection shield your critical system components from errant power fluctuations. The capacitors used in the HX520w are of 105oC industrial grade and offer unparalleled performance with high reliability.

The universal AC input 90 ~ 264 V automatically scans and adjusts the HX520w to operate at the available input voltage. Gold-plated connectors offer oxide-free and low-resistance connectivity to your system components. Triple 12 V rails provide independent and reliable power to your CPU, your video card and to the other components of your system.

  • newegg ATX12V v2.2 and EPS12V Compatible Compatible with the ATX12V v2.2 and EPS12V standards, the CORSAIR HX520w provides maximum power stability to drive the latest Intel and AMD processors as well as other components for desktop and entry-level server computer systems.
  • newegg 520W Maximum Power A maximum power of 520W delivers safe, reliable output for high-end computer systems.
  • newegg Modular Cable Design The modular cable design allows use of only the cables you need resulting in improved internal airflow and reduced system clutter.
  • newegg NVIDIA SLI Certified The CORSAIR HX520w has gone through a series of rigorous NVIDIA SLI certification tests for maximum system stability when building NVIDIA SLI PCs.

Learn more about the Corsair CMPSU-520HX

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 5 years
  • Limited Warranty period (labor): 5 years
  • Read full details

Customer Reviews of the Corsair CMPSU-520HX

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  • Kurt L.
  • 1/6/2016 6:23:37 PM
  • Verified Owner

5 out of 5 eggsthe little power supply that could

Pros: has lasted me 9 freaking years! super durable and tough

Cons: none

Other Thoughts: love corsair products

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  • Jin Y.
  • 3/10/2015 6:56:39 AM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsLasted 8 years and Still Works Perfectly!

Pros: Very Reliable lasting 8 years and still works flawlessly
Very Quiet Also

Cons: None at all.

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  • Rodney P.
  • 9/9/2014 2:27:30 PM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsSimply Incredible

Pros: I have been running this PSU since January 2007 (7-1/2 years) across three different computer builds. This PSU is as Rock-Solid reliable today as it was when I first installed it.

What more can you ask from your PSU?

This has led to the purchase of 4x more PSU from Corsair, and all of them are still humming a long just fine as well.

Cons: None what so ever.

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  • Evan B.
  • 9/4/2014 4:53:40 PM
  • Ownership: more than 1 year

5 out of 5 eggsVery stable power supply

Pros: I've had this power supply in continuous use for the past two and-a-half years powering my backup pc every time I've had to use it and it has been very stable. Never a crash or lockup due to "dirty" or unstable power, several due to unstable overclocks though (wrong settings, my fault). It is pretty dead-on for voltage outputs. 12V rail puts out 12.02-12.03V under load, 5V rail is 4.96-4.98V, 3.3V rail is 3.38V. I tested it with my digital multimeter. The 3.3V rail is a little high, but still well within the ATX specifications. I will probably use it to power my next backup PC as well when I upgrade it to a newer platform, assuming it is still in good working order then.

Cons: The only cons I can think of is that it only has two 6-pin PCI Express power cables, so no SLI or Crossfire with higher-power cards. Also, the PCI Express cables are a little short, so that could be a problem with bottom-mounted power supplies in large cases.

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  • Jason S.
  • 6/29/2013 12:14:05 PM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsAWESOME

Pros: This power supply has been my everyday unit for over 5 years. It just finally died and I was coming here to buy another one.

There are a ton of modular connectors, and it has survived three motherboard upgrades for me.

Cons: It died, but after 5 years of almost always on use - I can live with that!

Other Thoughts: Love this unit only wish it was still being made.

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  • Mathew N.
  • 10/23/2012 11:40:07 AM
  • Ownership: more than 1 year

4 out of 5 eggsExpensive Replacement Cables

Pros: Energy efficiant and around two years and still working well.
Modular which is great for cable management.

Cons: My review is for those who are looking to replace missing cables. The cables are very expensive. I unfortunately lost most of my cables after I moved. The only cables I still have are the ones I used when I originally built my pc.

Contacted Corsair and they pointed me to their parts website. On the parts website every cable for this psu (6 Pin Pci-Express, 4 Pin Molex, and Sata cables) as of the date of this review is $7.99. $7.99 per cable does not include shipping and handling so factor that in and your paying well over that amount.

I needed to replace three cables for my system, but unfortunately 3 cables would cost me about $24 not including shipping. For that price it would be better to invest that money in a brand new power rather than purchasing replacement cables for an old one.

Great Power Supply, but if your modular cables ever get damaged or lost and you need to replace them your power supply becomes useless. It's almost as bad as having your Power supply die.

Your left with two choices either pay a high premium for replacement cables, or just buy a new power supply altogether. I would recommend the latter.

Other Thoughts: The unnamed reviewer before me was very lucky. He apparently received replacement cables at no charge. I was not so fortunate.

It is not Corsair's fault my cables are lost, but I wished they would make replacement cables more affordable because for the cost of replacement cables your better off investing that money in a new Power Supply rather than purchasing expensive cables for an old Power Supply.

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  • Brent M.
  • 8/10/2012 7:16:06 AM
  • Ownership: more than 1 year

5 out of 5 eggsStill Going Strong

Pros: Still works fine and awesome customer service from Corsair!

Cons: None, none at all.

Other Thoughts: In 2011 I needed another 6 pin cable for my GTX460. Corsair customer support sent me a couple no charge. Several years after purchase and they give me a freebie, I'm now a Corsair customer for life. Excellent job Customer Service.

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  • John T.
  • 6/8/2011 10:30:44 PM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsAmazing

Pros: Underrated, modular, cool, powerful. Ran until recently, the fan started to be noisy, Corsair replaced it with a newer model. Stellar experience.

Cons: none.

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  • Jeffrey G.
  • 1/20/2011 5:13:00 PM
  • Ownership: more than 1 year
  • Verified Owner

2 out of 5 eggsLasted 3 years

Pros: Nice modular plugs. Handy storage bag for unused jumpers.

Cons: PSU died after 3 years in a ASUS (P4B533E) box. Computer exhibited strange behavior - Unpredictable shutdowns with increasing frequency.

Other Thoughts: Replaced with 600W OCZ 600SXS. Solved the problem immediately, and still working well after 2 months.

0 out of 2 people found this review helpful. Did you? Yes No

  • 1/8/2011 10:22:22 PM
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggsMove over Enermax

Pros: Reliable, power is smooth and accurate, run cool and quiet.

Cons: Still on the fence about the modular connectors but they seem to be working well so far. I think a different type of wire that is less rigid may be preferable.

Other Thoughts: Seems it would be hard to improve on these units. I have three of them that replaced Enermax units because I finally learned how important it is to have good rock solid power if you want a nice stable computer. I haven't had a single drive or motherboard failure since the transition. Imagine that.

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Item#: N82E16817139001
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