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CORSAIR CX Series 550 Watt 80+ Bronze Certified Non-Modular Power Supply

4.7 4.7 out of 5 stars 1,691 ratings
550 Watts
Model Name cx series
Brand Corsair
Compatible Devices Personal Computer
Output Wattage 550
Form Factor ATX
Wattage 550 watts
Cooling Method Air
Item dimensions L x W x H 5.9 x 3.38 x 5.51 inches
Item Weight 3.81 Pounds
Power Supply Design Non-Modular

About this item

  • 80+ 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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CORSAIR CX Series 550 Watt 80+ Bronze Certified Non-Modular Power Supply
CORSAIR CX Series 550 Watt 80+ Bronze Certified Non-Modular Power Supply
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CORSAIR CX550 80 Plus Bronze Non Modular Low-Noise ATX 550 Watt Power Supply - NA - Black
CORSAIR CX550 80 Plus Bronze Non Modular Low-Noise ATX 550 Watt Power Supply - NA - Black
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Price—$216.06$79.99$39.99-17% $49.99
List: $59.99		$59.99
Delivery—
Get it as soon as Thursday, May 16
Get it as soon as Monday, May 20
Get it as soon as Thursday, May 16
Get it as soon as Thursday, May 16
Get it as soon as Thursday, May 16
Customer Ratings
4.74.7 out of 5 stars1,691
4.74.7 out of 5 stars4,076
4.74.7 out of 5 stars852
4.64.6 out of 5 stars5,780
4.64.6 out of 5 stars960
4.74.7 out of 5 stars852
Value for money
4.5
4.5
4.4
4.8
4.5
4.4
Easy to install
4.4
4.6
4.7
4.8
5.0
4.7
Noise level
4.4
4.4
4.4
4.6
4.5
4.4
Energy efficiency
4.4
3.0
4.3
—
4.3
4.3
For gaming
4.1
4.5
—
4.4
5.0
—
Sold By
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Smoove Sales LLC
Amazon.com
ARESGAME TECH
Amazon.com
Amazon.com
power supply design
Non-Modular
Full Modular
Semi-Modular
Non-Modular
Non-Modular
Non-Modular
connector type
—
—
PCI Express
ATX
ATX
ATX
form factor
ATX
ATX
—
ATX
ATX
—
cooling method
Air
Air
Air
Air
Air
Air
fan count
1
1
1
1
1
1
wattage
550 watts
750 watts
650 watts
500 watts
550 watts
550 watts

Looking for specific info?

From the manufacturer

An Ideal Choice For Value-Conscious System Builders And Upgraders

CX Series power supply units provide modern power supply technologies and 80 PLUS Bronze efficiency at a competitive price point. It is black with black cable sleeving and connectors and a thermally controlled 120mm fan. The LLC resonant topology with DC to DC ensures complete compatibility with all modern day PCs.

Low Noise

80 Plus Bronze certified efficiency and clever fan design allow for little or no detectable fan noise during regular operation.

Good Looks

The matte black finish, black-sleeved cables and black connectors help give your system a restrained, high-tech look.

Reliable And Compatible

CX Series is built and tested to strict standards for trouble-free installation and smooth operation.

Corsair Engineering And Quality Control

Every Corsair power supply is designed by our California engineering team and built to our exact specifications. The same care that goes into the design and testing of our renowned high-power enthusiast power supplies also goes into the CX Series, because you need confidence and reliability regardless of your build budget.

Ample Connectors And Long Cables

Long cables make CX Series suitable for installation even in full-height tower cases, and the generous cable count allows you to power multiple components and storage devices.

Large-Diameter, Thermally Controlled Fan

Once you’ve installed a PSU, you shouldn’t have to think about it. Employing a thermally controlled fan makes the CX Series virtually silent at idle, and the large diameter reduces noise even when you’re pushing your system hard.


Compatibility
  • Supports ATX12V 2.4/2.3/2.2/2.01 and EPS12V 2.92 standards

Features

  • Active PFC with full range AC input (100-240 VAC)
  • 120mm thermally controlled rifle bearing fan
  • Engineered to meet maximum power output at a 40°C temperature rating
  • Over-voltage protection, under-voltage protection, short circuit protection, over power protection, and over temperature protection provide maximum safety to your critical system components
  • Safety and Agency Approvals: FCC, ICES, CE, UL, cUL, RCM, TÜV, CB, CCC, BSMI, EAC, RoHS, WEEE, KC

Product information

Technical Details

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Other Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.

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CORSAIR CX Series 550 Watt 80+ Bronze Certified Non-Modular Power Supply

CORSAIR CX Series 550 Watt 80+ Bronze Certified Non-Modular Power Supply

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What's in the box

  • PSU (1)

    • Product Description

    The CX550 provides modern power supply technologies and 80 PLUS Bronze efficiency at a competitive price point. It is black with black cable sleeving and connectors and a thermally controlled 120mm fan. The LLC resonant topology with DC to DC ensures complete compatibility with all modern day PCs.

    Customer reviews

    4.7 out of 5 stars
    4.7 out of 5
    1,691 global ratings

    Customers say

    Customers like the performance, value, quality and power of the system power device. For example, they mention it works well, is affordable and provides enough power. Some appreciate the ease of installation. That said, opinions are mixed on the cables.

    AI-generated from the text of customer reviews

    101 customers mention89 positive12 negative

    Customers like the performance of the power supply. For example, they say it works well, is flawless, and has enough wattage. Some mention it's quiet and works well with LGA1155 and AM4 mother boards.

    "...Overall, I give this PS high marks for reliability, no startup issues or "voltage lockups" after a power failure...." Read more

    "...The cable are black and seems more elegant than colorful cables in other units, though they could have been a bit more flexible." Read more

    "...voltage is or how clean the power is but I can say that this power supply works fine for me...." Read more

    "...So far this has been enough wattage, no issues. its quiet." Read more

    46 customers mention46 positive0 negative

    Customers are satisfied with the value of the system power device. For example, they mention it's worth the money, quiet, easy to install, and great for budget to midrange gaming builds. Some say it'll be a great buy even though it'd be able to be modular.

    "...This seems to be a problem on some of my older supplies. Good value for the money and an attractive chassis that will blend with all black cases..." Read more

    "...All & all, it's a great psu at an affordable price...." Read more

    "...generally positive reputation, comes with a 5 year warranty, and doesn't cost a fortune...." Read more

    "...because I have never needed it. * Price: I think $49.95 is a good price for a power supply of this quality, efficiency rating, and..." Read more

    39 customers mention29 positive10 negative

    Customers like the quality of the power supply. For example, they mention it's well-made, reliable, and stable. Some say the wires are durable and the product is stable. Overall, most are satisfied with the quality and performance of this power supply, which has a good warranty.

    "...Overall, I give this PS high marks for reliability, no startup issues or "voltage lockups" after a power failure...." Read more

    "I will only run corsair psu's in my builds. Too reliable.That said, wish i had the money for semi modular at least...." Read more

    "...you buy, so I didn't want to go too inexpensive, but Corsair is a quality brand that makes great supplies...." Read more

    "...for the unused cables in your build. * It does not use the highest quality capacitors available...." Read more

    36 customers mention29 positive7 negative

    Customers like the power of the system power device. They mention it's a great power supply, reliable, and has more than enough wattage for their setup. Some appreciate the quiet operation and the efficiency rating. Overall, most are happy with the power and say it runs their gaming rig stably.

    "...think $49.95 is a good price for a power supply of this quality, efficiency rating, and wattage. * The sleeving quality is excellent...." Read more

    "...So far this has been enough wattage, no issues. its quiet." Read more

    "...At 650 watts, it offers a great amount of power for most users...." Read more

    "...It is quiet, delivers all the power my system needs(i5, RX580, 2 -1TB drives, 1 500gb SSD, DVD, WIFI, USB3.0...) I probably could have powered the..." Read more

    34 customers mention29 positive5 negative

    Customers like the noise level of the system power device. For example, they say it's super quiet, works as expected, and has low noise / heat levels. Some mention that the sound is tolerable. Overall, most are satisfied with the noise performance of the product.

    "...The psu runs quietly and seems to hibernate with the rest of the computer's components. This allows the system to stay cool when ideal...." Read more

    "...So far this has been enough wattage, no issues. its quiet." Read more

    "...stays cool with a very efficient fan, and HUGE bonus is that it is so quiet you have to check to see if it is even running!..." Read more

    "...The sound is certainly tolerable, but it has returned my office to having constant white-noise where before it was completely silent despite my high-..." Read more

    20 customers mention20 positive0 negative

    Customers find the installation process of the system power device to be pretty easy. They also say that the power supply is super easy to switch into their computer.

    "...view (like most of the similar products in the category), it was easy to install...." Read more

    "...This makes installation easier (especially when you have a tight case fight as in a mini-ITX or even some microATX builds) and makes one fewer..." Read more

    "...Works great and was easy to install. The power cables were of ample length which is sometimes an issue with other power supplies...." Read more

    "I loved It! It was easy to instal, sleek, and quite!..." Read more

    11 customers mention11 positive0 negative

    Customers are satisfied with the fit of the system power device. They mention that it fits perfectly into the case with all of the screw holes in the correct places. The product is standard sized, and it works well with all wiring harnesses. It has plenty of length and connectors for future additions, and is great for medium end systems.

    "...It is standard sized so I could also fit it into an off the shelf Acer system to upgrade its power supply if I wanted...." Read more

    "Fits snugly in my mid sized Cooler Max case and works well with LGA1155 and AM4 mother boards...." Read more

    "Used it for my Dell 3020MT build. Fits exactly into the case with all of the screw holes in the correct places...." Read more

    "This actually fits the tiny mini-ITX cases that say they fit "standard ATX powersupplies" but only have 150mm room...." Read more

    25 customers mention17 positive8 negative

    Customers are mixed about the cables. Some mention that it has lots of cords and connectors, and comes with all cables necessary to hook up everything inside their computer. That said, some say that the cables are excessive and annoying, while others say that they easily tuck away behind the left side panel.

    "...Anyway, the supplies provide plenty of power and connection options and have about all you need for the average mobo...." Read more

    "...The cables are all sleeved in black, even the aux CPU power cable...." Read more

    "...Though it is not modular and hence, is more challenging from cable management point of view (like most of the similar products in the category), it..." Read more

    "...power budget carefully. * This power supply has two separate SATA power cables, each with three connectors along with a completely separate..." Read more

    QUE MAS PUEDES ESPERAR DE CORSAIR
    5 Stars
    QUE MAS PUEDES ESPERAR DE CORSAIR
    No tengo mucho que decir CORSAIR es mi marca favorita y siempre confió en ellos en fuente de poder.
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    Top reviews from the United States

    Marvin W.
    5.0 out of 5 stars Reliable
    Reviewed in the United States on September 14, 2020
    Size: 550 WattsVerified Purchase
    I waited to write a review, because I wanted to see just how long these hold up. I replaced a couple of other supplies with these after the big flood back in May 2020 here in Michigan. So far, they have been working fine, it's now nearly October 2020. The only complaint I have is that the Molex style ends for some of the peripherals are very tight and don't line up well with the pins on some of the drives in the hot-plug cage. Fortunately, most of those styles are disappearing, but I do need them for the older style server cages where the drives are removable. I guess I could get SATA to Molex adapters, but that just adds extra depth to already-deep cages. Anyway, the supplies provide plenty of power and connection options and have about all you need for the average mobo. I do know that power connectors are about to change, and this Molex style will probably be obsolete by the end of 2021. So you might want to stock up with a few of these supplies just to keep your older stock mobos and drives running. I hope Corsair continues to make these long after the change over in power supply standards to a uni-volt system. The multi-volt supplies are going away, which makes total sense to me. The old IBM architecture is gradually becoming less recognizable in modern PCs. I guess it was only a matter of time before the power supplies followed suit. Overall, I give this PS high marks for reliability, no startup issues or "voltage lockups" after a power failure. I've had a few of the old Ultras do that with AMD mobos, and I hate 'em. Corsair seems to do well in those situations. I've not had the supply lock up yet or not start when given the button command. This seems to be a problem on some of my older supplies. Good value for the money and an attractive chassis that will blend with all black cases quite nicely. Nylon covered wires hide all the multi-colored wires effectively enough to use in see-through cases.
    One person found this helpful
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    Gal
    5.0 out of 5 stars Quiet, cool & elegant.
    Reviewed in the United States on December 23, 2019
    Size: 650 WattsVerified Purchase
    Important notice : this psu is for bottom psu assembly. The power cables for the drives probably won't reach more then 2 divices if you mount it in an upper psu assembly.
    All & all, it's a great psu at an affordable price.
    Though it is not modular and hence, is more challenging from cable management point of view (like most of the similar products in the category), it was easy to install.
    The psu runs quietly and seems to hibernate with the rest of the computer's components. This allows the system to stay cool when ideal.
    The cable are black and seems more elegant than colorful cables in other units, though they could have been a bit more flexible.
    One person found this helpful
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    Schwartz
    5.0 out of 5 stars Good General Purpose Power Supply
    Reviewed in the United States on May 15, 2017
    Size: 650 WattsVine Customer Review of Free Product( What's this? )Verified Purchase
    It is really hard to do a power supply review when you aren't a professional reviewer so I can't really say how dead on the voltage is or how clean the power is but I can say that this power supply works fine for me.

    If you have a case that can hide the extra wires in the basement and don’t plan on ordering custom sleeved cables this might be the power supply you are looking for. This power supply looks just like my other middle of the road Corsair units and is pretty neutral looking. The cables are all sleeved in black, even the aux CPU power cable.

    I didn’t have any problems using this power supply to run my Overclocked Ryzen 1700 @ 4.0 GHz with a GeForce GTX 1060 6GB. It is standard sized so I could also fit it into an off the shelf Acer system to upgrade its power supply if I wanted. I never noticed the fan noise in my system.

    This supply is from a company with a generally positive reputation, comes with a 5 year warranty, and doesn't cost a fortune. Overall a power supply that I would recommend if it fits the application.
    3 people found this helpful
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    Aaron
    5.0 out of 5 stars Excellent Value, Excellent Quality
    Reviewed in the United States on January 27, 2018
    Size: 550 WattsVerified Purchase
    I build a lot of PCs.

    Things I like about this power supply:
    * Cosair name: They have never let me down. EVGA and Rosewill have. I can tell you Rosewill has good customer service, but only because I have needed. I can't tell you how Corsair's customer service is because I have never needed it.
    * Price: I think $49.95 is a good price for a power supply of this quality, efficiency rating, and wattage.
    * The sleeving quality is excellent. Between the all black wires, the appropriately flexible all black wires, and the proper use of shrink tube, the parts that are visible in the final build look perfect.
    * I prefer having the ATX power connector be all 24 pins together as in this model rather than having a group of 20 and a group of 4 as many other power supplies have. This makes installation easier (especially when you have a tight case fight as in a mini-ITX or even some microATX builds) and makes one fewer things that can go wrong in the future. I have seen plenty of "dead": PCs that only have a lose 4 pin portion of the ATX portion.
    * Same as above for the CPU power connector, except it is all 8 pins here as opposed to the more common 4+4 configuration. Note: If you are going to use this power supply with a motherboard that only requires 4 of the pins, make sure there is clearance for the unused pins.
    * It can be hard to find a power supply in this wattage that has two 6+2 PCIe power connectors as this one has. Of course, if you are using both of these, add up your power budget carefully.
    * This power supply has two separate SATA power cables, each with three connectors along with a completely separate molex chain. Some power supplies have mixed SATA power and molex which I don't care for as much. This supply will power up to six drives; more than most power supplies in this range.
    * The 12V rail has plenty of amps; many to all cheaper ones don't.     Corsair CX Series 550 Watt 80 Plus Bronze Certified Non-Modular Power Supply (CP-9020121-NA)Corsair CX Series 550 Watt 80 Plus Bronze Certified Non-Modular Power Supply (CP-9020121-NA)
    * Packaging quality was excellent.

    Things I don't like about this power supply:
    * It is not modular. This means that there will be excess cables that you need to tuck away at the end of your build. Not a big deal to me, but make sure you have the clearance for the unused cables in your build.
    * It does not use the highest quality capacitors available. This is also minor; it is not reasonable to expect at this price. Of course, in a low abuse, high endurance application at a modest price, this is the way to go. But, if you really want the longest lasting possible, pay more money and look elsewhere for your power supply choice.
    12 people found this helpful
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    KronosGlider
    4.0 out of 5 stars Corsair, only corsair
    Reviewed in the United States on January 7, 2020
    Size: 550 WattsVerified Purchase
    I will only run corsair psu's in my builds. Too reliable.
    That said, wish i had the money for semi modular at least. But was able to hide all the non used cables in the cooler master nr600 case.
    So far this has been enough wattage, no issues. its quiet.
    One person found this helpful
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    Top reviews from other countries

    Translate all reviews to English
    Manuel Rivera
    5.0 out of 5 stars Exelente producto
    Reviewed in Mexico on August 18, 2023
    Size: 550 WattsVerified Purchase
    Ya va para 1 año y no a dado ningún problema, el producto cumple con lo requerido
    Report
    Geraldo
    5.0 out of 5 stars Fonte
    Reviewed in Brazil on May 29, 2019
    Size: 650 WattsVerified Purchase
    Atende de forma excepcional meu uso. Utilizo em outra máquina e é muito boa.
    Report
    S
    5.0 out of 5 stars Great PSU that works amazingly.
    Reviewed in Singapore on February 23, 2020
    Size: 550 WattsVerified Purchase
    The PSU came on time and it worked right out of the box without any issues. The non-modularity didn't bother me at all. The only thing I'd note is that the wall plug is a type B plug which didn't work natively for me and I had to use an adapter converter. Other than that, Corsair is a very reliable brand and I'd definitely recommend it.
    Report
    Antonio Michel
    5.0 out of 5 stars Envío más rápido de lo esperado
    Reviewed in Mexico on September 23, 2019
    Size: 650 WattsVerified Purchase
    Esta fuente la encontre en una Tier List en línea como una de buena-alta calidad, y se me hizo a un excelente precio a comparación de otras similares.

    El envío tuvo una demora debido a un detalle con mi cuenta de Amazon, cosa que Amazon me resolvió en 24 horas como lo estipulaban pero aun asi aparecia que el envío se demoraría aproximadamente 3 días hábiles más por ser de importación, aun así llego al día siguiente (5 días antes de lo esperado considerando el fin de semana).

    En cuanto a la fuente, hasta el momento no he tenido ningún problema con casi un mes de uso.
    2 people found this helpful
     Report
    Nyarlathotep
    5.0 out of 5 stars Buena Calidad
    Reviewed in Mexico on August 30, 2022
    Size: 450 WattsVerified Purchase
    The media could not be loaded.
     Hasta ahorita funciona bien, llego en tiempo y forma y en aceptables condiciones, la caja tenía un pequeño golpe en la esquina pero por dentro estaba todo nuevo y en perfectas condiciones, aún no llegan las demás piezas de mi ensamble así que tendré que esperar para probarla con la pc armada, por el momento prende y funciona bien, proveedor zegucom recomendado
    Customer image
    Nyarlathotep
    5.0 out of 5 stars Buena Calidad
    Reviewed in Mexico on August 30, 2022
    Hasta ahorita funciona bien, llego en tiempo y forma y en aceptables condiciones, la caja tenía un pequeño golpe en la esquina pero por dentro estaba todo nuevo y en perfectas condiciones, aún no llegan las demás piezas de mi ensamble así que tendré que esperar para probarla con la pc armada, por el momento prende y funciona bien, proveedor zegucom recomendado
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