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CORSAIR CX Series CX450 450W ATX12V 80 PLUS BRONZE Certified Active PFC Power Supply

Ships from United States.

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  • 80 Plus Bronze: Runs cooler and uses less power than less efficient power supplies
  • 5-year warranty: Backed by Corsair’s legendary technical support and customer service
  • Black housing, cable sleeving and connectors: Give your build the high-end look without breaking the bank
  • Thermally controlled 120mm fan: Quiet operation across a wide range of loads
  • LLC resonant topology with DC to DC: Ensures improved efficiency at lower loads and compatibility with all modern day chipsets and CPUs.

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Learn more about the Corsair CX450

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 5 years
  • Limited Warranty period (labor): 5 years
  • Read full details
  • Return Policies
    • Return for refund within: 30 days
    • Return for replacement within: 30 days
  • This item is covered by Newegg.com's Standard Return Policy.
Ownership: 1 month to 1 year
Verified Owner
1/ 5
Rebate a scam

Pros: Unit is working

Cons: The rebate is a scam. I have done many mail in rebates in the past so I know how to submit. They rejected mine saying I either did not include the receipt or the receipt doesn't have the purchase date which is not possible. Asked me to resend which I did. Now said have not received the resubmission.

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Ownership: 1 month to 1 year
Verified Owner
4/ 5
Made it right

Pros: Great price and customer service.

Cons: First unit had issues. Installed and one RAM slot wasn't recognized. Trouble shot for motherboard, but eventually PC would power on for a few seconds and then power off no error code. Tried alternative PSU, ram slots were all recognized and system booted.

Other Thoughts: Contacted Corsair, customer service was great. Original unit was shipped back and new unit arrived a few days later with all shipping paid by Corsair. System is now up and running no issues. This is the first unit from Corsair out of six purchased I have ever had issues with. One egg off for what I have to assume was failure at quality control level.

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Ownership: 1 month to 1 year
Verified Owner
5/ 5
Great for low cost HTPC !

Pros: Works just fine and is not noisy

Small enough for mATX and some mITX builds. It's 140mm or 5.51 in

All black cables so if you have a windowed PC you cabling doesn't look like hamburger condiments

Well worth the price and I trust Corsair

450w is plenty for HTPC with up to low-mid range components and the power is very steady, I.E not a ton of ripple

Cons: nothing

Other Thoughts: I bought the 500w to for a friends build and it works just as good

This is in the HTPC I built and I am using to write this review

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Ownership: 1 month to 1 year
Verified Owner
5/ 5
Impressive Product

Pros: Quiet, sufficient connectors

Cons: Doesn’t come with mounting screws

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Ownership: 1 week to 1 month
Verified Owner
5/ 5
Performance and Value

Pros: Low noise, no coil whine
Low Ripple
Solid Efficiency
Reasonable price
SATA plugs are on two separate cords, so, cases with separate chambers for 3.5 inch drives and 2.5 inch drives are covered for at least two each.

Cons: Only one 6+2 Pin PCIe connector
Only 80+ Bronze efficiency (yes, I am spoiled, don't judge)
Really, there is not much to complain about here.

Other Thoughts: So, if you are like me, and have a GTX 970, R9 380(X) or another graphics card with two 6-pin PCIe plugs, well, you will need an adapter. I would recommend a MOLEX to PCIe for this scenario. Since 2014 or so, though, graphics cards have become vastly more efficient, so, you can run virtually anything up to an RTX 2070 on this PSU nowadays.

Speaking of efficiency, I am a big fan of so-called "Green Computing." Admittedly, that is a rather antiquated term, but, I hope you can forgive me. That is, we should all do our part to reduce our power costs. That being said, I do wish that they had an 80+ Gold version of this same PSU, but at the time of my purchase, only the 550 watt versions and above had the Gold certification, which is a little disappointing.

That being said, I don't wish to be too picky, this is a fantastic PSU for its price, particularly if you can see a mail-in rebate, like I did. I think that you will be quite happy with this unit.

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Ownership: 1 week to 1 month
Verified Owner
5/ 5
No problems

Pros: Quiet and efficient

Cons: None

Other Thoughts: I would recommend this power supply and would buy it again

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Ownership: 1 month to 1 year
Verified Owner
5/ 5
Packs a punch!

Pros: Held up great. Powered a GTX770 as well as a GTX1070 without any issues. Especially with everything overclocked, this guy really did it.

Cons: Just wish it came with 2 pcie cables for more power hungry cards but being 450w I couldn't expect that from this guy.

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Ownership: 1 week to 1 month
Verified Owner
5/ 5
Good for what it is

Pros: Professional reviews have indicated that this unit has all its protection circuits, and is good for its label. This makes it absolutely fit for purpose as a computer power supply. Has an appropriate number of connectors, of decent length for a microATX case. Efficient compared to cheap PSU-shaped objects. Fan is quiet under modest loads (I've not run it hard; that's not its target use).

Cons: Component selection found in reviews to be second-tier; that's not bad, but means this unit isn't meant to be ridden hard all day long, such as in a high-end gaming machine. For its intended target market, taking an egg off for this would be unreasonable.

Other Thoughts: This is an excellent choice for a business or "family" PC, that will pull only a fraction of its capacity. Although it may age poorly under heavy loads, light loads should be no sweat for years.

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