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Corsair CX550 80PLUS Bronze (2023)

550W ATX12V 2.4/EPS12V 2.92 Power Supply - 80PLUS Bronze

59€95
Recycling charge of 0€50
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Power:
  • 550 W

    59€95
    In stock
  • 650 W

    69€95
    In stock
  • 750 W

    79€95
    In stock
Overview

Corsair CX Series 80+ Bronze ATX Power Supplies

Corsair CX Series power supplies are 80 PLUS Bronze certified and offer up to 88% efficiency(load-dependent). The 120 mm thermo-regulated fan ensures quiet operation. Installation is made easy thanks to a compact format with a length of 125 mm.

Highlights

  • 80 PLUS Bronze certified: Provides up to 88% efficiency
  • Continuous full power: Corsair CX Series power supplies are guaranteed to deliver the maximum power your system requires at all times.
  • Quiet cooling: The 120mm thermo-regulated fan runs at full speed only under heavy load, and slows down again at low speed.
  • Compact size : The 125 mm length makes it easy to fit into almost any modern PC case.
Specifications
Select your criteria

General information

Product name

Corsair CX550 80PLUS Bronze (2023)

Brand

Corsair

Model

CP-9020277-EU

Power and Efficiency

Power

550 W

80 PLUS certification

Yes

80 PLUS / Cybenetics certification

80 PLUS Bronze

Connectivity

Modular

No

Modularity

Non-modular

Power connector(s)

1 X +12V (Power supply P8 - 2 x P4)
3 X Serial ATA power supply
1 X ATX 20 + 4 Pin
2 X Molex (4 Pin) Female
2 X PCI Express 6 + 2 Pin

Configurator

PSU-CM compatibility

+12V P4
+12V P8

Cooling

Fan size

120mm

Silent

Yes

Power supply type (PC)

Active

Design

Power format

ATX/EPS

Power supply standard

ATX12V
EPS12V

ATX 3.0

No

ATX 3.1

No

Multi-GPU

None

Typical use

Desktop computer

Physical characteristics

Color

Black

LED RGB

No

Height

86 mm

Width

140 mm

Length

125 mm

Weight

1.87 kg

Warranties

Commercial warranty

Legal warranty

Safety Information

Responsible person

CORSAIR Memory BV

Postal address

Wormerweg 8, 1311 XB Almere, Pays-Bas.

Electronic Address

Product referenced on 14 Nov 2023

Customer reviews
  • 96%
    24 reviews
  • 4%
    1 review
  • 0%
  • 0%
  • 0%
  • by Julien@
    Posted on 30 May 2026
    Bought on 1 May 2026 from LDLC
    Number of reviews: 6 Average rating: 10

    silent and effective

    The fan remains discreet even under load. Finally, the integrated protection against overvoltages and short circuits reinforces safety.

    It is a good PSU that remains an excellent choice for those looking for a reliable, high-performance and affordable power supply.

    Model: Corsair CX550 80PLUS Bronze (2023)
    Review automatically translated
  • by DanielB
    Posted on 13 Apr 2026
    Bought on 16 Mar 2026 from LDLC
    Number of reviews: 1 Average rating: 10

    Product reviews

    The product is satisfactory but I think that choosing the modular model would have been more judicious. The assembly by your after-sales service surprised me because the cables were not installed in the cable management but in the case, cluttering it.

    Model: Corsair CX650 80PLUS Bronze (2023)
    Review automatically translated
  • by PhilippeR
    Posted on 2 Apr 2026
    Bought on 5 Mar 2026 from LDLC
    Number of reviews: 2 Average rating: 10

    PC power supply purchase

    Power supply from a well-known brand working perfectly despite the differences in connection plugs to the various hard drives of a tower that has now been in operation for several years.
    This remains nonetheless and after installation of connectors "that fit well", an excellent product.

    Model: Corsair CX750 80PLUS Bronze (2023)
    Review automatically translated
  • by ReneM
    Posted on 24 Mar 2026
    Bought on 23 Feb 2026 from LDLC
    Number of reviews: 1 Average rating: 10

    Favorable opinion

    Order delivered very quickly and well protected in the packaging.
    Operation meets my expectations.

    Model: Corsair CX550 80PLUS Bronze (2023)
    Review automatically translated
  • by clement
    Posted on 30 Dec 2025
    Bought on 28 Nov 2025 from LDLC
    Number of reviews: 2 Average rating: 10

    good value for money

    After contacting LDLC's technical support to find out which power supply was compatible and sufficient for my configuration, they directed me to this model, which I am completely satisfied with.

    Model: Corsair CX550 80PLUS Bronze (2023)
    Review automatically translated

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