Power Supply Corsair CX550 550W 80 PLUS Bronze PSU
The Corsair CX550 550W 80 PLUS Bronze ATX Power Supply is a reliable and efficient solution for gaming PCs, office workstations, and everyday desktop systems. Built with 80 PLUS Bronze certification, it delivers up to 88% operational efficiency, helping reduce power consumption, heat output, and system noise. Designed with DC-to-DC conversion, a 120mm thermally controlled low-noise fan, and continuous 550W output, the CX550 ensures stable power delivery for modern processors and graphics cards. Whether you're building a new PC or upgrading an existing one, the Corsair CX550 offers dependable performance backed by Corsair's renowned quality.
80 PLUS Bronze Certified Efficiency
The Corsair CX550 is certified 80 PLUS Bronze, achieving up to 88% efficiency during typical loads. Higher efficiency reduces wasted electricity, lowers internal temperatures, and contributes to quieter overall system operation while improving long-term reliability.
Reliable Continuous 550W Output
Unlike some entry-level power supplies, the CX550 delivers 550 watts of continuous power, providing stable performance during demanding workloads. It is suitable for mainstream gaming systems equipped with mid-range graphics cards and modern multi-core processors.
DC-to-DC Power Conversion
The CX550 uses DC-to-DC conversion technology to maintain tighter voltage regulation across the +3.3V and +5V rails. This design improves power stability, especially under uneven or dynamic system loads, helping protect sensitive PC components.
Quiet 120mm Thermally Controlled Fan
A 120mm cooling fan automatically adjusts its speed based on the internal temperature of the power supply. Under low to moderate workloads, the fan operates quietly while still providing effective cooling for long-term reliability.
Comprehensive Protection Features
To ensure safe and stable operation, the Corsair CX550 includes multiple built-in protection circuits:
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Over Voltage Protection (OVP)
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Under Voltage Protection (UVP)
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Over Current Protection (OCP)
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Over Power Protection (OPP)
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Short Circuit Protection (SCP)
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Over Temperature Protection (OTP)
These safeguards help protect connected hardware against unexpected electrical faults and improve overall system reliability.
Essential Connectivity
The Corsair CX550 provides the connectors required for most modern desktop builds:
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1 × 24-Pin ATX Motherboard Connector
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1 × 8-Pin (4+4) CPU/EPS Connector
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2 × PCIe 6+2 Pin Connectors
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7 × SATA Power Connectors
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2 × Peripheral (Molex) Connectors
Its ATX form factor ensures compatibility with a wide range of standard PC cases.
Why Choose the Corsair CX550?
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550W continuous power output
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80 PLUS Bronze certified efficiency
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DC-to-DC conversion for stable voltage regulation
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120mm thermally controlled low-noise cooling fan
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Reliable performance for gaming and professional PCs
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Comprehensive electrical protection circuits
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Compact ATX design for broad compatibility
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5-Year Manufacturer Warranty
The Corsair CX550 550W 80 PLUS Bronze Power Supply is an excellent choice for users seeking dependable performance, quiet operation, and long-term reliability for mainstream gaming and productivity systems.
FAQ (Frequently Asked Questions)
1. Is the Corsair CX550 suitable for gaming PCs?
Yes. The CX550 is ideal for entry-level to mid-range gaming PCs with compatible power requirements.
2. Is the Corsair CX550 modular?
No. This model is non-modular, meaning all power cables are permanently attached.
3. What efficiency certification does the CX550 have?
It is 80 PLUS Bronze certified, delivering up to approximately 88% efficiency under typical operating conditions.
4. Does the CX550 support modern graphics cards?
Yes. It includes two PCIe 6+2 Pin connectors for compatible graphics cards.
5. What cooling fan does the CX550 use?
It features a 120mm thermally controlled low-noise fan that adjusts speed automatically according to operating temperature.
6. What protection features are included?
The CX550 includes OVP, UVP, OCP, OPP, SCP, and OTP for enhanced system safety.
7. Does the Corsair CX550 use DC-to-DC conversion?
Yes. It incorporates DC-to-DC conversion technology to provide improved voltage stability.
8. What warranty does Corsair provide?
The Corsair CX550 comes with a 5-year manufacturer warranty.
