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Corsair

Corsair RMX Series (2018), RM550x, 550 Watt, 80+ Gold Certified, Fully Modular Power Supply

Based on 626 reviews
Condition: Used - Very Good
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$258.99

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Availability: Only 1 left in stock, order soon!
Fulfilled by US Seller/We ship from USA
Arrives Nov 20 – Dec 7
Order within 9 hours and 30 minutes

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At a glance

Condition
Used - Very Good
Size
550W
Pattern
RM550x
Model
CP-9020177-NA
Dimensions
6.3 x 5.91 x 3.39 in
Weight
3.4 lb
Connector Type
ATX
Warranty
10 years warranty
Works with
Personal Computer

Features 5

  • 80+ Gold certified for lower power consumption, less noise and cooler temperatures
  • Tuned for low noise operation even at full load
  • Zero RPM fan mode for near-silent operation at low to medium loads
  • 100% industrial-grade, 105C rated Japanese capacitors ensure unwavering power and reliability

Description

CORSAIR RM550x series power supplies are built with the highest quality components to deliver 80+ Gold efficient power to your PC. Using only Japanese 105 DegreeC capacitors, users can depend on an RM550x PSUs' long life and reliability, backed by a ten-year warranty. Zero RPM Mode means an RM550x series PSU is virtually silent at low and medium loads, and even at maximum power, a low noise fan ensures quiet operation. Fully modular cables make PC builds and upgrades easy, as you only need to install the cables your system requires. Quiet, efficient and dependable, an RM550x PSU has everything you need to power high-performance PC for years to come. Tech Support opt 1.

Specs 26

Model Name rmx series
Brand Corsair
Connector Type ATX
Output Wattage 550 watts
Form Factor ATX
Wattage 550 watts
Cooling Method Air
Item dimensions L x W x H 6.3 x 5.91 x 3.39 inches

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Nov 20 – Dec 7

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

Corsair quality per usual
Size: RM850X Pattern: Power Supply
Bought this to replace an old 650x corsair PS I had in my last build for the current rig. That power supply lasted nearly 11 years people! Sure it was older and not modular as that wasn't a thing - but 11 years? My system is centered around corsair from the cpu cooler, ram, fans, pc case, mouse pad and psu. Everything runs flawlessly, simple to install with a focus on aesthetics and the cable management is insane - especially with that 5000d case. 850x is more than I require, but this is also future proofing as I intend to be using this psu for a decade or so. Its fully modular, meaning you can only attach the wires you need, which eases the strain of the cable management chaos. I have 4 cables attached to power the cpu, gpu, sata sdd backups and of course all the rgb modules on the back panel). Great, quiet and modular psu backed by Corsairs legendary quality. ... show more
Reviewed in the United States on March 8, 2021 by Big Poppa Pump
High Power Output with Great Value
Size: RM750x Pattern: Power Supply
I purchased the RM750 after I got a more powerful GPU for my first build. Up until then, I had been using a 600-Watt EVGA non-modular PSU (which was great and had enough power output, but didn't have two PCIe 6+2 connections). Going to a fully modular PSU was quite convenient since I didn't have a load of unused cables hardwired into the old PSU just gunking up the space under the case. The installation was easy enough, and this PSU has more than enough connections for most applications. The thing has been working flawlessly since, and is ridiculously quiet. I have friends who have used Corsair PSUs for years and have never experienced a failure or fault, so it's odd that so many here seem to be experiencing such. Needless, to say, I fully recommend this product if you want enough power to provide for any gaming build with a good amount of headroom for future hardware that may consume more power. ... show more
Reviewed in the United States on March 23, 2021 by Nick
Fit perfectly well and is working just fine so far.
Size: RM650x Pattern: Power Supply
I purchased this for a 2014 Dell XPS 8300. Its original PSU was rated at 460 W, but I wanted to go a little higher because I plan on buying a new GPU soon. I've been using this system with the new PSU installed for a week as of writing this review, and so far I'm very happy. The fan works great - it's quiet and when it turns on, it's powerful. It combines well with the case fan. I've had no issues what-so-ever and will be back here to update this review if anything changes. Update (Feb 2020): Still no issues. PSU working just fine. I installed the new GPU (MSI NVIDIA GTX 1660 Ti Gaming X) and believe it or not the system works. Now, the system does experience regular crashes when skipping while watching videos with the new GPU (that's probably due to the the Dell bios not being up to the task). For all other tasks, including kids gaming (Roblox, Minecraft, Fortnite, GS:GO), there have been no issues and the PSU is supplying ample power to the cpu and gpu for this old Dell system. I keep the 5-star rating for this PSU. Update (August 16, 2020) No issues at all. On a related matter, the regular crashes on skipping videos after installation of the new gpu as discussed above have completely stopped for some reason. System is working like brand new, and the PSU is still quiet and efficient. Still happy with this purchase. ... show more
Reviewed in the United States on October 30, 2019 by Joey
Great PSU that will last for years!
Size: RM850X Pattern: Power Supply
Update: 8/15/2021 I’ve now had this PSU for nearly 2 years and it’s performed beautifully since the day I bought it. I haven’t had any problems whatsoever. I just got this PSU a few days ago and I really like it. This is an upgrade from my Cooler Master 750W 80+ (non-bronze/gold etc.,) PSU and I’m glad I got it. The all-black cables look really nice and don’t clash with other aesthetics like ketchup & mustard cables on a lot of other lower quality PSUs do. This comes with plenty of cables and I’m not using most of them but it’s nice that they are there. I also think the little bag of zip ties they throw in is a nice touch. I actually ordered a bag of zip ties with this because I didn’t know it came with them and I didn’t even use them because Corsair had me covered. All in all this is a high quality PSU with 80+ Gold certification and 850W which is more than enough to handle almost any system build that a normal, everyday computer will need. It will definitely future proof your system as you won’t have to replace your PSU for a LONG time. Corsair also has a very nice 10 year warranty on this PSU which just goes to show how much faith they have in the quality and durability of this product. ... show more
Reviewed in the United States on November 28, 2019 by Blake
It's just good.
Size: RM750x Pattern: Power Supply
A good PSU is one that does its job and goes unnoticed and that's exactly what this PSU does. I upgraded from a 500 watt evga bronze PSU after my 8700k upgrade and while the 500w evga was probably enough, I wanted something modular for cleaner cable management and the all black cables of this PSU were also a huge plus as they're much nicer looking than the mustard and ketchup colored ones of my old one. My old PSU was somewhere around $30 when I got it a few years ago and with this one being at around $100 dollars you can see the difference in quality right out of the box, it just has a high end look and feel to it with the packaging and everything. I can't attest to the actual quality of the internals but the general consensus around the internet is that you do get what you paid for in terms of the components that this PSU is made of. I read somewhere that the older RM series used high quality capacitors for the main caps but lower quality secondary caps, while the newer RMx line uses the same high quality capacitors all throughout. I guess this PSU also comes with a 10 year warranty, which is reassuring as you usually don't see warranties span that much time and most people probably usually don't keep the same computer hardware that long anyway, though I definitely think that this PSU will be able to last through several builds. As for the 0db fan, I don't think my old PSU had that feature, but honestly I could never hear the PSU fan over the case fans at low load, and at high load my GPU fan would drown out any other noise. ... show more
Reviewed in the United States on August 17, 2018 by Mike P
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