£71.88
(updated at 2025-01-18 03:00:00)
Score: 7.65 watt per £


Product features

  • 12V SINGLE RAIL DESIGN - 12V single rail design provides stable output currents under heavy loads
  • 12 V single rail design – a 12 V single rail design provides stable output currents under heavy loads
  • Low Noise Fan

MSI MAG A550BN Power Supply Review

The MSI MAG A550BN is a 550-watt power supply unit (PSU) designed for gaming enthusiasts and PC builders. It is 80 PLUS Bronze certified, ensuring efficient power delivery and lower energy consumption. Here is a detailed review of its features, pros, and cons.

Features and Design

  • Efficiency: The PSU is 80 PLUS Bronze certified, which means it operates at an efficiency of at least 85% at 50% load, 82% at 20% load, and 85% at 100% load.
  • Form Factor: It is an ATX PSU, making it compatible with most gaming cases and providing ample room for airflow and cable management.
  • Cooling Method: The power supply uses a 120 mm fan with a sleeve bearing, which reduces noise while maintaining excellent heat dissipation.
  • DC/DC Voltage Converter Design: This design reduces the instability of output voltage, ensuring a stable power supply to the system.
  • Modular Design: The PSU features semi-modular cables, providing a balance between flexibility and simplicity in cable management. This design allows users to use only the necessary cables, reducing clutter and improving airflow.

Performance

  • Output Wattage: The MSI MAG A550BN delivers a stable 550 watts of power, making it suitable for mid-range gaming and productivity systems.
  • Noise Level: The PSU operates quietly, even under load, which is a significant advantage for those who prefer a silent PC environment.
  • Build Quality: The build quality is solid, giving users confidence in its durability and long-term performance. The PSU is constructed with high-quality components, ensuring reliable operation.

Protection Features

  • Overcurrent Protection: The PSU includes overcurrent protection to safeguard the system from electrical issues.
  • Overvoltage Protection: It also features overvoltage protection to ensure that the system is not damaged by excessive voltage.
  • Short Circuit Protection: The PSU includes short circuit protection to prevent damage from short circuits.

Verdict

The MSI MAG A550BN is a reliable and efficient power supply unit that is well-suited for mid-range gaming and productivity systems. Its semi-modular design, quiet operation, and comprehensive protection features make it a top-notch choice for PC builders. However, it may not be the best option for high-end gaming systems that require more power.

Features Table

Feature Description
Efficiency 80 PLUS Bronze certified, ensuring efficient power delivery and lower energy consumption
Form Factor ATX, compatible with most gaming cases and providing ample room for airflow and cable management
Cooling Method 120 mm fan with a sleeve bearing, reducing noise while maintaining excellent heat dissipation
DC/DC Voltage Converter Design Reduces the instability of output voltage, ensuring a stable power supply to the system
Modular Design Semi-modular cables, providing a balance between flexibility and simplicity in cable management
Output Wattage Stable 550 watts of power, suitable for mid-range gaming and productivity systems
Noise Level Operates quietly, even under load, which is a significant advantage for those who prefer a silent PC environment
Build Quality Solid build quality, giving users confidence in its durability and long-term performance
Protection Features Overcurrent protection, overvoltage protection, and short circuit protection to safeguard the system from electrical issues
Item Dimensions 5.91 x 5.51 x 3.39 inches (L x W x H)
Item Weight 2 kilograms
Connector Type ATX
Cooling Method Air
Warranty 5-year warranty

This power supply unit offers great value for its features and performance, making it an excellent choice for those seeking a reliable and efficient mid-range PSU.