Corsair CX550 550W 80 PLUS Bronze ATX Power Supply CP-9020277-AU
$80.10
The Corsair CX550 (CP-9020277-AU) is a 550W ATX power supply with 80 PLUS Bronze certification, built for budget and mid-range desktop PC builds. It delivers up to 88% efficiency, runs a 120mm low-noise fan and measures just 125mm long, so it fits easily in nearly any modern case.
Key features
- 80 PLUS Bronze, up to 88% efficiency: less energy is wasted as heat, which helps keep running costs and temperatures down.
- 550W continuous power: Corsair rates the full 550W as continuous output at 30°C, not just peak power.
- 120mm low-noise fan: keeps the unit cool without adding much noise to your system.
- Compact 125mm length: leaves more room for cable routing and airflow in smaller ATX cases.
- 5-year Corsair warranty: backed by Corsair, with a rated MTBF of 100,000 hours.
Specifications
| Model | Corsair CX Series CX550, CP-9020277-AU (AU plug) |
| Continuous power | 550W |
| Continuous output rated temperature | 30°C |
| Efficiency | 80 PLUS Bronze, up to 88% |
| Form factor | ATX |
| ATX12V version | v2.31 |
| Modular | No (fixed cables) |
| Cable type | Type 4 |
| Connectors | 1 x ATX, 3 x SATA |
| Fan | 120mm, sleeve bearing |
| Length | 125mm |
| MTBF | 100,000 hours |
| Weight | 2kg |
| Warranty | 5 years |
| In the box | CX Series ATX power supply, AC power cord, mounting screws, warranty documentation |
Who it's for
- Suited to: office, home and entry-level gaming PCs that need a reliable, efficient 550W ATX power supply.
- Not suited to: builders who want modular cables for a tidier build, or high-power systems that need more than 550W.
FAQs
Is the Corsair CX550 modular?
No. The CX550 is non-modular, so all cables are permanently attached.
How efficient is the CX550?
It is 80 PLUS Bronze certified, with up to 88% efficiency.
What warranty does the Corsair CX550 have?
Corsair lists a 5-year warranty for the CX550.
Will it fit in a small case?
It is a standard ATX power supply with a compact 125mm length, so it suits most cases that accept ATX power supplies.
Build around it with the Corsair 3000D RGB AIRFLOW mid-tower case, or browse the full Corsair range for memory, cooling and more.
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