The CORSAIR CX550 is a 550W ATX power supply for desktop PC builds and upgrades. It suits PC builders and home users who need a dependable power source for a compatible system.

Its 80 PLUS Bronze certification offers efficiency of up to 88%, while guaranteed continuous power is designed to provide consistent output. A 120mm low-noise fan helps cool the unit, and its thermally controlled operation adjusts fan speed to the system load. At 125mm long, the casing is compact for easier fitting in many modern PC cases. The fixed cabling keeps the design straightforward, and the UK model comes with an AC power cord.

Key features

• 550W continuous output for a compatible desktop system
• 80 PLUS Bronze certification with efficiency up to 88%
• Guaranteed continuous power for consistent operation
• 120mm thermally controlled fan for low-noise cooling
• Compact 125mm casing helps with installation in modern cases
• Fixed cables avoid the need to attach separate modular leads
• Five-year warranty

Compatibility

This is an ATX form factor PSU with a 24-pin ATX connection and three SATA connectors. Check that your case can accommodate the unit and that its fixed cable connections meet your motherboard, graphics card and storage requirements before purchase. This model is non-modular, so its cables cannot be removed. Good to know: the AC power cord and mounting screws are included; additional cables or other accessories are not listed as included.

In the box

• CORSAIR CX550
• AC Power Cord
• Mounting Screws
• Warranty Documentation

Specifications

For a new build or a replacement in a compatible PC, the CX550 combines 550W output with Bronze-rated efficiency, quiet load-responsive cooling and a compact case length.