Corsair 550 Watt RM550x Series Fully Modular ATX Power Supply - 80 Plus Gold Certified

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RMx Series RMx550 550W '80 Plus Gold' Modular Power Supply from Corsair
80 PLUS Gold certified
Tuned for low noise operation
Zero RPM Fan Mode
100% all Japanese 105°C capacitors
Fully modular cables
Compact size
10 Year Warranty

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Quickfind Code: Q4227 | Digitalpromo Code: CP-9020177-UK-W1B13

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Corsair 550 Watt RM550x Series Fully Modular ATX Power Supply - 80 Plus Gold Certified
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Corsair RM550x Gold Certified 550W PSU Modular Power Supply - CP-9020090-UK Gold-certified efficiency with extremely tight voltage regulation to deliver superior performance.
Manufacturers Code: CP-9020177-UK
EAN: 0843591034722

RM550x - Corsair RMx Power Supply - Fully Modular ATX PSU

Corsair RMx 550W Power Supply

CORSAIR RM550x series power supplies are built with the highest quality components to deliver 80 PLUS Gold efficient power to your PC to reduce costs and excess heat. Fully modular cables make PC builds and upgrades easy, as you only need to install the cables your system requires. 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. Quiet, efficient and dependable, an RM550x PSU has everything you need to power your high-performance PC for years to come.

Fully Modular Connectivity

Keep your build looking clean!

The fully modular design of the RMx power supply means that during your build you can mount the PSU in the case first and then attach only the cables you need, making builds and upgrades easy with great looking results. Simply connect the cables you need and keep the rest safe for future upgrades.

Compact Size


A 160mm-long casing ensures an easy fit in almost all modern enthusiast PC cases. Your guarantee of reliable operation that will last across several system builds.

Completely Modular


Only connect the cables your system needs, making clean and tidy builds easier whilst improving airflow.

Corsair RM550x Key Features

80 PLUS Gold Certified
Gold certification ensures high efficiency operation for less excess heat and lower operating costs.

Japanese 105°C capacitors
Premium internal components ensure solid power delivery and long term reliability.

Zero RPM Fan Mode
Fan doesn’t turn on until it’s needed, so you’ll enjoy virtually silent operation at low and medium loads.

Corsair 10 Year Guarantee
Your guarantee of reliable operation that will last across several system builds.


Size     ATX
Edition     RMx Series 2018 RM550x
Wattage     550 W
80 PLUS Certification     80 PLUS Gold
Max. Efficiency (at 230Vac)     92 %
Cooling     Fan
Fans     1 x 140mm
Internal +12V Rails     Single Rail
Rail 1 +12V     45.8 A
Rail 2 +12V     N/A
Rail 3 +12V     N/A
Rail 4 +12V     N/A
Rail 5 +12V     N/A
Rail 6 +12V     N/A
Max. Combined Output +12V     45.8 A
Modular     Yes
Modularity     Full Modular
SLI/CrossFire     Yes
EPS 12V     Yes
Motherboard Connector     20+4-pin

1 x 4+4-pin CPU +12V (EPS)
1 x 4-pin FDD Power
4 x 4-pin Molex
2 x 6+2-pin PCIe
6 x SATA

Dimensions     150 x 86 x 160 mm (WxHxD)
Package Type     Retail

Additional Information
Model Number     CP-9020177-UK
GTIN     843591034722




12v Connector 4+4 Pin


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