FSP 550W Power Supply FSP550-51AAC 80 Plus Bronze ATX12V Non-Modular

The FSP 550W Power Supply FSP550-51AAC is a reliable ATX12V V2.52 power unit delivering 550W of rated output with 80 Plus Bronze 230V EU certification and up to 88% efficiency. Featuring a single +12V rail design, active PFC with a power factor of ≥0.99, and a 120mm silent sleeve fan, this non-modular PSU is engineered for stable and efficient system builds.

Performance and Efficiency

The FSP 550W Power Supply achieves up to 88% efficiency at typical load thanks to its eco-friendly design and custom DC-DC architecture. The 80 Plus Bronze 230V EU certification ensures reduced energy waste and lower heat output, making it suitable for office PCs and entry-level gaming systems. Active PFC with a power factor of ≥0.99 further enhances power delivery stability and efficiency.

Cooling and Acoustics

A 120mm sleeve fan with thermal control technology provides ultra-silent operation by adjusting fan speed based on system load. This design keeps noise levels low during everyday computing while delivering adequate airflow for thermal management. The fan’s long-life construction ensures dependable cooling performance over extended use.

Build Quality and Protection

The FSP 550W Power Supply features a non-modular ATX form factor with all-black cables that give your system a clean, professional appearance. It is equipped with a complete protection suite including OCP (Over Current Protection), OVP (Over Voltage Protection), OPP (Over Power Protection), and SCP (Short Circuit Protection) to safeguard your components from electrical damage. The unit is also CB 62368 safety certified.

Connectivity and Compatibility

Compliant with Intel PSDG ATX 12V V2.52 standard, the FSP 550W Power Supply supports a wide range of modern Intel and AMD platforms. It accepts input voltage from 200-240V AC at 50-60Hz with a 4A input current, making it compatible with standard 230V EU electrical infrastructure. The single +12V rail design ensures consistent power distribution across all connected components.