CORSAIR CX550 80 PLUS Bronze Non Modular Low-Noise ATX 550 Watt Power Supply - UK - Black

Corsair CX Series CX550 power supply unit 550 W 24-pin ATX ATX Black

CORSAIR CX550 80 PLUS Bronze Non Modular Low-Noise ATX 550 Watt Power Supply - UK - Black

Overall Rating: 2.4 / 5 (average from multiple review sources, as of 23 Feb 2026)
Based on a total of 46,432 customer reviews from independent review platforms.

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Corsair CX Series 550W 80 PLUS Bronze Fully Wired Power Supply

Overall Rating: 4.4 / 5 (average from multiple review sources, as of 27 Feb 2026)
Based on a total of 15,265 customer reviews from independent review platforms.

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CORSAIR CX Series CX550 80 PLUS Bronze ATX Power Supply

Overall Rating: 4.7 / 5 (average from multiple review sources, as of 25 Feb 2026)
Based on a total of 44,082 customer reviews from independent review platforms.

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CORSAIR CX550 80 PLUS Bronze Non Modular Low-Noise ATX 550 Watt Power Supply - UK - Black

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550W Corsair CX Series CX550 80 Plus Bronze PSU

Overall Rating: 4.4 / 5 (average from multiple review sources, as of 27 Feb 2026)
Based on a total of 32,615 customer reviews from independent review platforms.

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CORSAIR CX550 80 PLUS Bronze 550W ATX Power Supply - CP-9020277-UK

Overall Rating: 4.3 / 5 (average from multiple review sources, as of 25 Feb 2026)
Based on a total of 16,070 customer reviews from independent review platforms.

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Corsair CX Series 550W 80+ Bronze Fully Wired Power Supply

Overall Rating: 4.8 / 5 (average from multiple review sources, as of 27 Feb 2026)
Based on a total of 54,782 customer reviews from independent review platforms.

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Corsair 550W BRONZE STANDARD CX550

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Corsair 550W BRONZE STANDARD CX550

Overall Rating: 3.2 / 5 (average from multiple review sources, as of 24 Feb 2026)
Based on a total of 42 customer reviews from independent review platforms.

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Product Information

Weight & dimensions

Depth 125 mm
Width 150 mm

Design

Fan location Top
Number of fans 1 fan(s)
Fan diameter 12 cm
Cooling type Active
Product colour Black

Performance

80 PLUS certification 80 PLUS Bronze
Power supply unit (PSU) form factor ATX
Purpose PC

Ports & interfaces

Cabling type Non-Modular
Motherboard power connector 24-pin ATX
PCI Express power connectors (6+2 pin) 1
EPS power connector (8-pin) Yes
Number of SATA power connectors 8
Motherboard power cable length 60 cm

Power

AC input voltage 100 - 240 V
Total power 550 W
Max output current (+5Vsb) 3 A
Max output current (-12V) 0.3 A
Max output current (+5V) 20 A
Max output current (+12V) 52 A
Max output current (+3.3V) 24 A
Combined power (+5Vsb) 15 W
Combined power (-12V) 3.6 W
Combined power (+5V) 130 W
Combined power (+12V) 624 W
Combined power (+3.3V) 130 W
Input current 10 - 5 A
AC input frequency 47 - 63 Hz

Product information

At a glance

  • Efficient 550W output for various builds
  • Modular design for easy cable management
  • Quiet fan operation ensures peaceful use

Note: This text was created with the help of AI.

Power Up Your Build with Corsair CX550 (2023)

The PSUs category just got an exciting new addition with the Corsair CX550 (2023) 550W power supply unit. Perfect for gamers, PC enthusiasts, and anyone looking to upgrade their computer, this PSU is designed for reliable performance and efficiency. Whether you’re building a new rig or enhancing your current setup, the CX550 will meet your power needs while providing ample headroom for future upgrades, making it an excellent investment for both casual users and hardcore gamers alike.

Reliability Meets Efficiency

One of the standout features of the Corsair CX550 is its **80 PLUS Bronze certification**, ensuring that it delivers excellent energy efficiency with minimal waste. This means you can expect lower electricity bills and a more eco-friendly setup. Moreover, its **550W output** is robust enough to support mid-range gaming rigs and workstation builds. The inclusion of **Japanese capacitors** not only enhances durability but also provides stable performance, ensuring your components receive the reliable power they require during intense gaming sessions or heavy workloads.

Sleek Design and Easy Installation

When it comes to aesthetics, the Corsair CX550 does not disappoint. Its **sleek and modern design** features a matte black finish that seamlessly integrates into any build, complementing your hardware beautifully. The fully modular design allows you to connect only the cables you need, reducing clutter and improving airflow within your case. Installation is a breeze thanks to the intuitive layout and clear instructions, making it perfect for both seasoned builders and newcomers alike!

Quiet Operation for a Peaceful Gaming Experience

Let’s talk about noise – or rather, the lack of it! The Corsair CX550 is designed with a **120mm, thermally controlled fan** that provides quiet operation while keeping the PSU cool under pressure. This means you can immerse yourself in your favorite games or work on your projects without the distracting hum of a noisy power supply. Combined with its durable construction and safety features like over-voltage protection, this PSU promises a reliable and serene computing experience.

Note: This text was created with the help of AI.

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CORSAIR CX550 80 PLUS Bronze Non Modular Low-Noise ATX 550 Watt Power Supply - UK - Black

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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.
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