MSI MAG A550BN, 550 Watts, 80 PLUS Bronze, Quiet 120mm Fan

The MSI MAG A550BN power supply delivers dependable and efficient performance for gaming and productivity systems. Certified with 80 PLUS Bronze, it ensures up to 85% efficiency, reducing heat and power waste. Featuring a DC-to-DC circuit design for stable power delivery and a 120mm low-noise fan for quiet cooling, this PSU is built for reliability.

With industrial-grade protections and a durable design, the MAG A550BN provides long-term performance and peace of mind for your components.

Key Features

• Wattage: 550W continuous output, ideal for entry-level to mid-range gaming and productivity builds.
• Efficiency Rating: 80 PLUS Bronze certified, offering up to 85% efficiency under typical loads.
• Cooling System: Quiet 120mm sleeve bearing fan for effective heat dissipation and reduced noise.
• DC-to-DC Design: Ensures stable voltage output, improving overall system reliability.
• Industrial-Grade Protection: Equipped with OVP, OCP, OPP, OTP, and SCP to safeguard your components.
• Compact Design: Standard ATX dimensions for compatibility with most cases.
• Durability: Backed by a 5-year limited warranty for long-term reliable operation.

MSI MAG A550BN Power Supply Specifications

• Brand: MSI
• Model: MAG A550BN
• Wattage: 550W continuous output
• Efficiency Certification: 80 PLUS Bronze
• Form Factor: ATX
• Input Voltage: 100-240V AC (full range)
• Input Frequency Range: 50-60Hz
• PFC: Active PFC
• Fan Size and Type: 120mm sleeve bearing fan
• Circuit Design: DC-to-DC design for stable power delivery
• Protections: OCP, OVP, OPP, OTP, SCP
• Connectors:
  • Motherboard: 1 x 24-pin ATX (20+4)
  • CPU/EPS: 1 x 4+4-pin EPS12V
  • PCIe: 2 x 6+2-pin PCIe
  • SATA: 5 x SATA connectors
  • Peripheral (Molex): 2 x 4-pin Molex
  • Floppy: 1 x Floppy connector
• Dimensions: 150mm x 140mm x 86mm
• Warranty: 5 Years

Processor Compatibility

The MSI MAG A550BN is compatible with modern multi-core processors, including Intel Core i5/i7 and AMD Ryzen 5/7, making it suitable for entry-level to mid-range gaming and productivity builds.

Graphics Card Compatibility

The MSI MAG A550BN Power Supply, rated at 550W, is a robust option for powering mid-range graphics cards that demand stable performance. Its single +12V rail ensures consistent power delivery, making it ideal for GPUs requiring up to 200W TDP. Some of the compatible GPUs from the provided list include:

• Budget GPUs: ASUS GeForce GTX 1650 Phoenix Fan Overclocked Edition, MSI GeForce GTX 1650 Ventus XS 4G OCV3.
• Mid-Range GPUs: ASUS Dual GeForce RTX 3050 V2 OC Edition 8GB, Gigabyte GeForce RTX 3060 WINDFORCE OC 12GB.
• Entry-Level Gaming GPUs: Zotac Gaming GeForce RTX 3060 Twin Edge, MSI Radeon RX 6500 XT MECH 2X 4G OC.

While the power supply handles most entry-to-mid-level GPUs, it is unsuitable for high-end cards like RTX 4070 or RTX 4080 series due to higher wattage and PCIe requirements.

Motherboard Compatibility

The MSI MAG A550BN Power Supply complies with ATX12V v2.31 standards, making it universally compatible with most modern motherboards. Its non-modular design ensures reliability while providing standard connectivity options like:

• For AMD Builds: Compatible with mainstream boards like MSI B450 TOMAHAWK MAX II, ASUS PRIME A520M K, and Gigabyte B550M DS3H.
• For Intel Builds: Perfect for Intel motherboards such as MSI PRO H610M-E DDR4 or Gigabyte B560M DS3H AC WIFI.

The PSU’s connectors, including a 24-pin ATX and a 4+4-pin EPS, support basic configurations and moderate gaming rigs.

Product Recommendations

Best Paired Graphics Cards

• ASUS Dual GeForce RTX 3050 V2 OC Edition 8GB: Pair this GPU with the MSI MAG A550BN for efficient 1080p gaming performance. The PSU’s 550W capacity ensures stability without power overdraw.

Best Paired Motherboards

• MSI B450 TOMAHAWK MAX II: This motherboard supports Ryzen processors and seamlessly integrates with the PSU’s power delivery capabilities, making it ideal for mid-tier builds.

Energy Efficiency

The 80 PLUS Bronze certification guarantees up to 85% efficiency under typical loads, reducing energy waste and lowering electricity bills.

Cooling and Noise Level

The 120mm low-noise sleeve bearing fan ensures effective cooling while minimizing noise. It dynamically adjusts speed based on load and temperature, ensuring quiet operation during light tasks.

Is the MSI MAG A550BN for You?

The MSI MAG A550BN is an excellent choice for budget-conscious builders looking for a reliable PSU for entry-level to mid-range systems. With 550W output, 80 PLUS Bronze efficiency, and industrial-grade protections, it delivers stable and efficient power for gaming and productivity setups. Its quiet fan, durable design, and 5-year warranty make it a dependable power solution.