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CORSAIR CX550 80 Plus Bronze Non Modular Low-Noise ATX 550 Watt Power Supply - NA - Black

CORSAIR CX550 80 Plus Bronze Non Modular Low-Noise ATX 550 Watt Power Supply - NA - Black

Status: CORSAIR CX550 80 Plus Bronze Non Modular…: Unavailable on Amazon as of . SpecPicks has no in-stock listing with matching specs on file; the search below lists current offers. eBay sellers may still list this model new or used.

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Bottom line: The CORSAIR CX550 80 Plus Bronze Non Modular Low-Noise ATX 550 Watt Power: 80 PLUS Bronze certified, up to 88% efficiency for less heat and lower power bills; main trade-off: non-modular: all cables are fixed, so unused leads add clutter.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

Pros & Cons

Pros

  • ✓ 80 PLUS Bronze certified, up to 88% efficiency for less heat and lower power bills
  • ✓ 550W full continuous rated output, guaranteed sustained delivery under load
  • ✓ 120mm thermally controlled fan stays quiet at low loads, ramps only under stress
  • ✓ Compact 125mm casing fits nearly all modern ATX cases

Cons

  • ✗ Non-modular: all cables are fixed, so unused leads add clutter
  • ✗ 550W ceiling suits mid-range builds, not high-end GPUs like the RTX 5090
  • ✗ 80 PLUS Bronze trails Gold and Platinum units on efficiency
  • ✗ Black sleeved cables are flat, not individually braided for showcase builds

Manufacturer description

CORSAIR CX Series Power Supplies are 80 PLUS Bronze Certified, offering up to 88% operational efficiency for reduced heat and lower energy costs. Their full continuous power delivery guarantees consistent performance, while a 120mm thermally controlled low-noise cooling fan ensures quiet operation. Fitting easily into most modern PC cases with its compact 125mm length, the CX Series features black sleeved cables and a black powder-coated casing to fit your PC's style. Enjoy confidence in your purchase with a three-year warranty and the support of CORSAIR's global technical team, ensuring…

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SpecPicks Verdict

SpecPicks scored CORSAIR CX550 80 Plus Bronze Non Modular Low-Noise ATX 550 Watt… using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. Compare with similarly-priced alternatives in the power supplies category before committing. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

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 retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • 80 PLUS Bronze Certified: Provides up to 88% operational efficiency, generating less heat and lowering your energy costs.
  • Full Continuous Power: CORSAIR CX Series power supplies are guaranteed to deliver their full rated wattage of continuous power.
  • Low-Noise Cooling: A 120mm thermally controlled low-noise cooling fan only spins at high speed when your power supply is under heavy stress, slowing down for quieter operation at lower loads.
  • Compact Casing: 125mm length ensures an easy fit in almost all modern PC cases.
  • Black Sleeving and Casing: Black sleeved cables and a black powder-coated casing seamlessly fits your PC’s style.

Full Specifications

BrandCorsair
ColorBlack
Wattage550 watts
Fan Size12 centimeters
Model NameCX550
Unit Count1 Count
Form FactorATX
Model NumberCP-9020277-NA
CompatibilityPC
Compact Casing125mm length ensures an easy fit in almost all modern PC cases.
Connector TypeATX
Cooling MethodAir
Number of Fans1
Output Wattage550
Item Dimensions4.92 x 5.91 x 3.39 inches
Mfr Part NumberCP-9020277-NA
Number of Items1
Number of Packs1
Compatible DevicesMonitor
Power Supply DesignNon-Modular

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CORSAIR CX550 80 Plus Bronze Non Modular Low-Noise ATX 550 Watt Power Supply - NA - Black is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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CORSAIR CX550 80 Plus Bronze Non Modular Low-Noise ATX 550 Watt Power Supply - NA - Black
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