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Power Supply

Corsair - RMx 550W 80+ Gold Certified Fully-Modular ATX Power Supply

( 4.8 Average / 12 Ratings )






Part #

(or) RM550x
(or) CP-9020090-UK
(or) CP-9020090-EU




550 Watts





Efficiency Certification

80+ Gold

PCI-Express 6+2-Pin Connectors


Completed Builds Using This Part

See All Completed Builds


Merchant Base Promo Shipping Tax Availability Total
PC Componentes €97.00 +€5.25 s/h In stock €102.25

Price History (Excluding Tax) History:


Knodalisshel 11 points 15 months ago
from completed build Big Bessie

I got this PSU as a gift, and I wish all gifts were like this. It's quiet, good airflow, and obvious why it's a gold.

sh4ne 15 points 12 months ago
from completed build Mini ITX Gaming Cube

Fan-off when idle. So far so good. Powers my mITX build with a GTX 1070.

dfarell1000 25 points 12 months ago
from completed build Maximum Overdrive

i can't ever tell if its making a peep of noise. good product.

Trinergy 12 points 11 months ago
from completed build Rocking a Lynnfield in Tahiti

PSU | 11-10-2015 | newegg.com : $69.99 after rebate used credit card rewards to purchase; quiet with the fan never running

teoulas 8 points 10 months ago
from completed build Mid-range gaming HTPC

Great PSU for a single-GPU build. It's fully modular, which is essential for a small case, and semi-passive, which keeps the noise down during idle/regular usage.

elmoinundies 10 points 9 months ago
from completed build First Ever Build

Love the all black sleeved cables, made my build look great.

khmergod 12 points 8 months ago

Great power supply with enough juice for 1 big gpu.

belmen 9 points 7 months ago
from completed build Black Friday Define C Build

Originally targeted at its 135mm fan but later I found it even better: this unit works almost always in semi-passive mode and the fan is barely spinning! Even the quietest fan can’t beat no fan. Comes with $20 rebate card as well.

rennseppl 17 points 5 months ago

Good power supply with black sleeved cables.

ZERO noice at low load

Not hearable noise at medium load

Droggelbecher 8 points 2 months ago
from completed build Droggelbechers Multitool

Sweet spot in terms of wattage for this build, it has a silent 0RPM mode as well and it rarely ever starts spinning the fan. Modularity and 80+ Gold is very nice, as well as the sleeved, black cables. When new this thing has a unpleasant stench of chemicals to it, but after a month of usage it's pretty much gone.