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Corsair Builder Series CMPSU-430CX 430W ATX Power Supply Active PFC 120MM Fan *2 Year Warranty*

Corsair Builder Series CMPSU-430CX 430W ATX Power Supply Active PFC 120MM Fan *2 Year Warranty* - 1
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Corsair Builder Series CMPSU-430CX 430W ATX Power Supply Active PFC 120MM Fan *2 Year Warranty* - 54842_l.jpg Customer Photos (0)
Reg. Price: $66.75  CAD
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SKU: 54842
Shipping Weight: 4.8lbs

Part #: CMPSU-430CX

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Product Videos [ Edit ]

Features [ Edit | History ]

Quick Specs:
Efficiency 80%
Input Voltage 110 V AC 220 V AC
Output Power 430 W
Limited Warranty 3 Year
Output Voltage 3.3 V DC @ 20 A 5 V DC @ 20 A 12 V DC @ 28 A -12 V DC @ 800 mA 5 V DC @ 3 A
Weight (Approximate) 4.44 lb
Form Factor Internal
Height 3.4"
Width 5.9"
Depth 6.3"
Number of Fans 1
Number of +12V Rails 1

Specifications [ Edit | History ]

General Information  
     Brand Name: Corsair
     Manufacturer: Corsair
     Manufacturer Part Number: CMPSU-430CX
     Manufacturer Website Address:
     Product Model: CX430
     Product Name: CX430 ATX12V Power Supply
     Product Series: CX
     Product Type: ATX12V Power Supply
     Receptacles: 1 x ATX Motherboard
1 x 4-pin ATX12V Motherboard
Physical Characteristics  
     Depth: 6.3" (160 mm)
     Form Factor: Internal
     Height: 3.4" (86.4 mm)
     Weight (Approximate): 2.01 kg
     Width: 5.9" (149.9 mm)
Power Description  
     Input Voltage: 110 V AC
220 V AC
     Input Voltage Range: 90 V AC to 264 V AC
     Input Voltage Type: AC
     Number of +12V Rails: 1
     Output Power: 430 W
     Output Voltage: 3.3 V DC @ 20 A
5 V DC @ 20 A
12 V DC @ 28 A
-12 V DC @ 800 mA
5 V DC @ 3 A
     MTBF: 100000 Hour
Technical Information  
     Efficiency: 80%
     Number of Fans: 1
     Power Factor Correction (PFC): Active
     Protection Type: Over Voltage
Over Power
Under Voltage
Short Circuit
     Limited Warranty: 3 Year

Customer Reviews of Corsair CMPSU-430CX

Product reviews on are screened for relevance and inappropriate content. Reviews may contain inaccurate information about the product. If there is a discrepancy, please use the Flag this Review link located beside each review. Reviews are not an endorsement expressed by, but opinions from customers based on their own experience with a product. We do not recommend you make purchasing decisions based on facts or opinions expressed regarding Corsair CMPSU-430CX reviews.
Wai Ming_L
Experience: 11 Months


Inexpensive when it is on special
Quality is not as good as I thought
I bought it for a year but only used it for two and half months. The 4 pin connector burned and nearly killed my motherboard. I just received CX430 V2 as a replacement. I am not sure about the difference of CX430 and CX430 V2. However, it might be a good idea to purchase CX430 V2 instead of CX430 since CX430 V2 include 3 years warranty instead of 2 years. If the product is not on special, I will avoid purchasing this product and get a better one since the shipping cost to send it back was nearly $23 dollars.

I would give it as a two and a half stars

Experience: 1 Days
Verified OwnerVerified Owner


-Corsair Quality
-2 year warranty only
Great value power supply when on sale. Delivers good power and has the usual Corsair quality. Only 2 year warranty though.

Lance W
Experience: 3 Weeks
Verified OwnerVerified Owner


Good, clean power
Fairly quiet
Sleeved cables

Could use another 6-pin
Great budget PSU ($30 on sale). Fairly quiet, even when powering a HD 6870. I do wish it had a second 6-pin PCI-E power connector though. I don't like having to use adapters. +12V & +5V rails are almost spot on at ~250W load according to my multimeter.

Experience: 2 Weeks
Verified OwnerVerified Owner


Very good build quality and all the chords are sleeved, lots of Sata power connections, all around good build quality, I picked it up for like $30 which is a great price.
None for what you pay you get a great deal, 80 certified is wonderful.
All around great value and performance is great i would recommend it in a budget to medium end gaming system.

Experience: 1 Months
Verified OwnerVerified Owner


À 29.99$ c'est définitivement une bonne affaire.
Fiabilité du manufacturier.
Très bon rapport qualité/prix.
Utile à garder en pièce de rechange pour un système d'utilisation générale.
Long câbles de distribution des tensions.
Emballage de qualité.
Badge auto-collant Corsair de qualité inclus.
Le rail 12V est un peu faible pour un bloc d'alimentation 430W mais c'est quand même suffisant pour un système de gamme moyenne avec une carte graphique.
Ce bloc d'alimentation est parfait pour garder sous la mains comme pièce de rechange. Il est assez puissant pour la plupart des systèmes de gamme moyenne avec une carte graphique avec un seul connecteur d'alimentation PCI-E. On peut entendre le ventilateur tourner mais ce n'est rien désagérable. Un bon achat particulièrement lorsqu'il est en solde à 30$.

Experience: 1 Months
Verified OwnerVerified Owner


Matte finish
Louder than my OCZ supply.
This is a decent power supply, but has a slightly audible high-pitched noise. It's only possible to hear it if the room is absolutely silent though.

Experience: 4 Months
Verified OwnerVerified Owner


-good brand
nice cheap power supply to replace a very old computer.

Experience: 6 Months
Verified OwnerVerified Owner


- cheap
- reliable
- well packaged / sleeved
- quality build
- lack of 80+ cert
For what it's intended to do, it is very good. A cheap power supply that won't die out on you. 430W is more than you'll really need for a basic system. ONly drawback is lack of 80+ energy efficiency.

Experience: 10 Days
Verified OwnerVerified Owner


Very Quiet, low noise
None that i can think of
I have this in my i3 htpc build and its very quiet... this is more than powerful to handle an is and ssd. TV volume has to be very low in order to hear any fan noise. 100% recommended.

Experience: 3 Months
Verified OwnerVerified Owner


Casing and sleeved cables make physical appearance and fit and finish attractive. Quiet operation with enough cables for a typical consumer build. For those using it in a case where the PSU still sits up top, the 120m fan will likely lower your case ambient and cpu temperatures a touch. It shaved off 2-3c off idle/load.
None so far.
This unit took a bit of a step back from the one it appears to have replaced, the CX400 which was a great unit with a 30A 12v, 3yr warranty, 80+ certified and output rating at 40c vs. 28A 12v, 2yr warranty, not 80+ certified and output rating at 30c.

However, it is still a decent unit and a good buy if bought on sale. For it's intended use in the low end/budget bracket it is up to task as it more than does the job in my backup system, a stock Pentium D945.

NCIX Forum Messages

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Messages about Corsair Builder Series CMPSU-430CX 430W ATX Power Supply Active PFC 120MM Fan *2 Year Warranty*

No CPU power plug (Sitka10101- Aug 12, 11, 3 Replies)
Shipping cost (A.smith- Jul 30, 11, 2 Replies)
bad NCIX presentation © (Hotshot- May 11, 11, 34 Replies)
another "is this enough for" question (unokilo321- Jan 29, 11, 2 Replies)
just an advice for you Enthusiasts! (PabloEskobaR- Oct 21, 10, 18 Replies)
How's this PSU rate? (Kramy- Oct 21, 10, 12 Replies)
IS this enough or.. (INurHome- Sep 01, 10, 8 Replies)

Post a New Message  |    All Messages       Browse NCIX Forums

Forum messages are not reviewed and may not contain accurate information about a product. Message contents are opinions from customers based on their own experience with a product. We do not recommend you make puchasing decisions based on Forum messages.

Reviews from the Web

Below are reviews found on other web sites for this product submitted by customers.

Comment: An excellent product despite lacking 80plus certification; high efficiency and extremely clean power. The performance surprised a very seasoned and hard core reviewer, Gabriel Torres. My personal beef is that its sleeve bearing fan will reduce the service life vs a ball bearing one.
Posted by: lsi @02/17/11
Comment: Today we're having a look at one of Corsair's "Builder Series" power supply units. The CX430.The CX430 is one of the most basic power supplies available from Corsair. The CX430 is not modular, is supposedly "only" 80 Plus (as opposed to Bronze, Silver, etc.) and (spoiler alert) uses a group
Posted by: Anthony_K @01/09/11
Submit a review link   |   Latest 30 reviews

Product Warranty

First 30 days limited warranty through The remainder of the 3 year warranty is provided directly by the manufacturer.

Corsair's DRAM memory modules all carry a lifetime warranty. The Flash Voyager, Flash ReadOut, TurboFlash, Flash Survivor and Mini Flash products all have a warranty for the expected normal life of the product (10 years). The Flash Padlock has a warranty of 3 years. The HX, TX, and VX Series of Power Supplies have a 5 year warranty, and Liquid Cooling products carry a one year warranty. In general, this means Corsair products are guaranteed to operate, as specified by their datasheet, and in the operating environment for which they were intended, for the life of the product or the extent of the warranty.

For additional information and technical assitance, please visit Corsair Memory's support site at:

Corsair Technical Support

Phone:  1-800-205-7657
[email protected]

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While uses all reasonable efforts to include accurate and up-to-date information on the Site, makes no warranties or representations as to the Site's accuracy. assumes no liability or responsibility for any errors or omissions in the content on the Site. warrants product(s) to be in good working condition and free from defects in material and workmanship for a period of one (1) year for OEM packages, and for thirty (30) days for RETAIL packages (excluding laptops and notebooks), from the original Invoice date unless otherwise restricted below or by the manufacturer's own warranty policy. Defective returns and warranty service will be replaced, exchanged or repaired at's sole discretion, and based on vendor's policy.

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GOVERNMENT & BUSINESS Laptop and Notebook purchases made with government or business POs can be returned typically within fourteen (14) days from original invoice date. Return will only be accepted with original packaging, accessories, cables, free gifts (if applicable), unopened software and manuals and is subject to inspection before warranty approval. Laptop and notebook with tampered serial numbers or UPC code will be denied returns. Please check with your B2B sales representative for specific terms and details.

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Defective software, video games or DVDs will be replaced by the SAME title and format ONLY (and subject to current availability) within 30 days of the Invoice date. Software, Drones, video games and DVDs may be returned within 30 days only if the item is UNOPENED (with shrink wrap still intact) at the sole discretion of does NOT apply a surcharge to credit card orders. Please read our RMA & warranty policy and terms & conditions for more information. If you have any questions regarding our sales and warranty policies, please send us a message -- we'll be glad to answer any of your questions.

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