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โก Power up smart, stay cool, and build bold.
The Corsair CX550 is a 550-watt, 80 PLUS Bronze certified power supply designed for modern PCs. Featuring a thermally controlled 120mm fan for quiet operation, LLC resonant topology with DC to DC for improved efficiency, and a sleek all-black design, it offers reliable power delivery and energy savings. Backed by a 5-year warranty and Corsairโs renowned support, itโs the perfect balance of performance, style, and value for professional builds.



















| ASIN | B01MRW2K79 |
| Box Contents | PSU (1) |
| Brand | Corsair |
| Brand Name | Corsair |
| Compatible Devices | Personal Computer |
| Compatible devices | Personal Computer |
| Connector Types | ATX, EPS, PCI Express |
| Connector type | ATX, EPS, PCI Express |
| Cooling Method | Air |
| Customer Reviews | 4.7 out of 5 stars 586 Reviews |
| EU Spare Part Availability Duration | 5 Years |
| Fan Size | 120 Millimetres |
| Form Factor | ATX |
| Form factor | ATX |
| Global Trade Identification Number | 00843591084000 |
| Item Dimensions | 15 x 8.6 x 14 centimetres |
| Item Type Name | Corsair CX550 550W 80 Plus Bronze Power Supply |
| Item Weight | 3.81 Pounds |
| Manufacturer | Corsair |
| Manufacturer Part Number | CP-9020121-NA |
| Maximum Input Voltage | 240 Volts (AC) |
| Minimum Input Voltage | 24 Volts |
| Model Name | cx series |
| Model Number | CP-9020121-NA |
| Model name | cx series |
| Number of Fans | 1 |
| Output Wattage | 550.0 |
| Output wattage | 550.0 |
| Power Supply Design | Non-Modular |
| System Bus Connector Type | 24 Pin |
| UPC | 843591084000 |
| Unit Count | 1.0 count |
| Wattage | 550 watts |
D**Z
Fuente de calidad y buen precio
Muy buen producto, llego antes de la fecha indicada excelente servicio, el producto llego muy bien embalado sin maltratar, y en cuestiรณn a su funcionamiento es excelente y sin problemas y muy silenciosa, y en relaciรณn precio calidad es muy buena comopra.
M**.
Reliable
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.
L**E
Ordered as a replacement to my old PSU - Fantastic
I ordered this as a replacement for my old PSU which was emitting so much EMI that it was causing my PC to freeze, reboot and caused neighbouring devices all sorts of headaches from the electrical noise it was generating. I grabbed one of these PSU's because it was a good price and Corsair normally makes excellent quality products that are affordable. This is no different and doesn't disappoint. It's excellent build quality and has fixed all the problems I've had with my old PSU. No more freezing / reboots and no more electrical noise interfering with my other equipment. I'd highly recommend this unit to anyone looking for a quality economy power supply.
S**S
Great PSU that works amazingly.
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.
G**E
Power supply == Heart of your build
Yeah you could go for a VS but they components on that variant is pretty trash. CX is bae. As long as you're going for i5/R5 + GTX1060/RX580 this baby's got you covered. The extra investment is well worth it :]
Trustpilot
2 weeks ago
2 weeks ago