Corsair
Corsair CP-9020121-NA CX550 550W 80+ Bronze Power Supply
★★★★★
550W
Reliable Power for Your PC with the Corsair CX550 Power Supply The Corsair CX550 provides efficient and dependable power for your desktop computer. With 80 PLUS Bronze certification, this non-modular power supply offers stable performance and energy savings. Featuring a quiet 120mm fan and all-bl...
$128.49*
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*Price sourced from Amazon.com. Last updated:Jun 27, 2026.Price and availability are subject to change.
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Overview
Reliable Power for Your PC with the Corsair CX550 Power Supply
The Corsair CX550 provides efficient and dependable power for your desktop computer. With 80 PLUS Bronze certification, this non-modular power supply offers stable performance and energy savings. Featuring a quiet 120mm fan and all-black cabling, it's a great choice for budget-conscious builders.
Specifications:
- Wattage: 550 Watts
- 80 PLUS Certification: Bronze
- Form Factor: ATX
- Fan Size: 120mm
- Topology: LLC Resonant with DC to DC
- Cables: Black Sleeving and Connectors
- Modular: Non-Modular
Key Features
80+ Bronze: Runs cooler and uses less power than less efficient power supplies
5-year warranty: Backed by CORSAIR's legendary technical support and customer service
Black housing, cable sleeving and connectors: Give your build the high-end look without breaking the bank
Thermally controlled 120mm fan: Quiet operation across a wide range of loads
LLC resonant topology with DC to DC: Ensures improved efficiency at lower loads and compatibility with all modern day chipsets and CPUs
Specifications
Wattage
550W
Efficiency Rating
80+ Bronze
Warranty
5-year
Fan Size
120mm
Fan Control
Thermally controlled
Design Aesthetics
Black housing, cable sleeving, connectors
Topology
LLC resonant with DC to DC
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Check on Amazon →Pros & Cons
👍 Pros
- Achieves 80+ Bronze certification, ensuring higher efficiency and reduced power consumption, leading to cooler operation
- Backed by a 5-year warranty, demonstrating CORSAIR's confidence in its durability and providing long-term support
- Features black housing, cable sleeving, and connectors, which contribute to a high-end, clean aesthetic for PC builds
- Equipped with a thermally controlled 120mm fan, designed for quiet operation across a broad range of system loads
- Utilizes LLC resonant topology with DC to DC conversion, improving efficiency at lower loads and ensuring compatibility with modern chipsets and CPUs
- Delivers 550W of power, suitable for powering a variety of mainstream gaming and productivity systems
- Offers robust technical support and customer service, providing assistance when needed
- Helps save on electricity bills due to its enhanced energy efficiency compared to less efficient power supplies
👎 Cons
- The 80+ Bronze certification, while good, is not as efficient as Gold, Platinum, or Titanium rated power supplies
- The 550W output might be limiting for high-end gaming rigs with multiple GPUs or very power-hungry components
- Being a non-modular or semi-modular unit (implied by description not stating full modularity), cable management might be more challenging
- The black aesthetics are good, but there are no color options or RGB lighting for users seeking customization
- The thermally controlled fan is quiet but may still produce some audible noise under very heavy loads
- LLC resonant topology and DC to DC conversion, while beneficial, are standard features in many modern PSUs
- Specific noise levels in dB are not provided, so actual quietness can only be inferred
Frequently Asked Questions
What is the efficiency rating of the Corsair CX550 power supply?
The Corsair CX550 power supply boasts an 80+ Bronze certification, which means it runs cooler and uses less power than less efficient power supplies.
What kind of warranty comes with this power supply?
This power supply is backed by a 5-year warranty, which includes CORSAIR's technical support and customer service.
What aesthetic features does the Corsair CX550 offer for a PC build?
It features black housing, cable sleeving, and connectors, designed to give your PC build a high-end and clean look.
How quiet is the fan on this power supply?
The Corsair CX550 is equipped with a thermally controlled 120mm fan, which ensures quiet operation across a wide range of loads.
What technology does this power supply use to ensure efficiency and compatibility?
It utilizes LLC resonant topology with DC to DC conversion, which ensures improved efficiency at lower loads and compatibility with all modern chipsets and CPUs.
What is the power output of the Corsair CX550?
This power supply provides 550W of power.
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