Skip to main content
CORSAIR RM550x Fully Modular ATX Power Supply - 80 Plus Gold - Low-Noise Fan - Zero RPM - Black

CORSAIR RM550x Fully Modular ATX Power Supply - 80 Plus Gold - Low-Noise Fan - Zero RPM - Black

By SpecPicks Editorial · Verified 2026-08-23

$55.16
Buy on Amazon — $55.16 Compare to similar power supplies

*Price sourced from Amazon.com. Last updated 2026-08-23. Price and availability subject to change.

Bottom line: The CORSAIR RM550x Fully Modular ATX Power Supply - 80 Plus Gold - Low-Noise Fan - Zero RPM - Black is a niche pick — read recent reviews before buying in the power supplies category, priced around $55.16. Read recent reviews carefully before committing.

CORSAIR RM550x Series fully modular power supplies with EPS12V connectors are built with the highest quality components to deliver 80 PLUS Gold efficient power to your PC. RM550x PSUs use only Japanese 105°C capacitors, for long life and reliability backed by a ten-year warranty. A 135mm magnetic levitation bearing fan ensures high performance coupled with low noise.

Related Products

Other products in this category you may like:

SpecPicks Verdict

SpecPicks classifies CORSAIR RM550x Fully Modular ATX Power Supply - 80 Plus Gold… as a niche pick — read recent reviews before buying in the power supplies category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.

Common buyer scenarios for power supplies of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

  • ✓ Fully modular, so you only connect the cables that your system needs.
  • ✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

  • Fully modular, so you only connect the cables that your system needs.
  • A 135mm ML fan utilizes a magnetic levitation bearing and custom engineered rotors for high performance, low noise, and superior reliability.
  • EPS12V connector for compatibility with modern graphics cards and motherboards.
  • 100% Industrial-grade, 105°C rated Japanese capacitors ensure unwavering power and reliability.
  • Supports Modern Standby sleep mode for extremely fast wake-from-sleep times and better low-load efficiency.
  • Zero RPM fan mode for near-silent operation at low to medium loads.

Full Specifications

BrandCorsair
ColorBlack
Wattage550 watts
Fan Size13.5 centimeters
Model NameRM550X
Form FactorATX
Model NumberCP-9020197-NA
Connector TypeEPS
Cooling MethodAir
Number of Fans1
Output Wattage550 watts
Item Dimensions6.3 x 5.91 x 3.39 inches
Mfr Part NumberCP-9020197-NA
Number of Items1

Ready to buy?

CORSAIR RM550x Fully Modular ATX Power Supply - 80 Plus Gold - Low-Noise Fan - Zero RPM - Black is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Check price on Amazon →

*Price sourced from Amazon.com. Last updated 2026-08-23. Price and availability subject to change.

Related Power Supplies

Keep exploring SpecPicks

Other buying guides

Browse the catalog

Editorial

More guides & deep dives from the SpecPicks archive

Browse all articles & guides →

More reviews from the SpecPicks archive

Browse all reviews →

Earliest SpecPicks reviews

Browse full archive →
CORSAIR RM550x Fully Modular ATX Power Supply - 80 Plus Gold - Low-Noise Fan - Zero RPM - Black
$55.16
View on Amazon →