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Power Supply

Corsair - RMx (2018) 550 W 80+ Gold Certified Fully-Modular ATX Power Supply

( 4.6 Average / 5 Ratings )





RM550x (2018)

Part #

(or) CP-9020177-UK
(or) CP-9020177-EU


Black / Silver




550 W



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
Newegg Canada $109.99 In stock $109.99+
Corsair $119.99 In stock $119.99+
Memory Express $119.99 $119.99+
Vuugo $125.07 Out of stock $125.07+

Price History (Excluding Tax) History:


jzoott 1 point 25 days ago

Love the packaging it came in with the felt bag for all the cables it really felt premium. Also a seriously quiet power supply. However, the cables that came with it are quite stiff so building with those cables are a bit difficult.

RinkMoose 6 points 18 days ago
from completed build First Build: Panda Mode

Does what it is supposed to do, but the cables aren't the nicest.

Bitl 11 points 16 days ago
from completed build PROJECT SOMBRA

Modular power supply and very good from what I heard of the RMx section of power supplies. Comes with a lot of cables however these cables come with in-cable capacitors along with being stiff in general which impeads cable management. Might consider getting less stiff cables in the future.

LucasPC1 2 points 16 days ago
from completed build Blackout w/minimal RGB

I wanted a fully modular PSU and this was the cheapest one at the time at $50. Reliable, relatively cheap, and not too much more than the typical semi-modular bronze certified PSUs. I plan to put in custom sleeved cables in the future, but for now, the all black cables are fine.

maxzeightfive 8 points 16 days ago
from completed build Dream Machine

A high quality PSU, it has a pretty nice metal sticker bundled with it.