MSI MAG A750BN PCIE5 750W Power Supply — 80 PLUS Bronze Efficiency (up to 85%), ATX Form Factor, Non-Modular, 120mm Sleeve Bearing Fan, PCIe 5.0 16-pin (300W), 2x EPS 8-pin, 2x PCIe 6+2 pin, 5x SATA, Active PFC, OCP/OVP/OPP/OTP/SCP Protection

General Information

The MSI MAG A750BN PCIE5 750W Non-Modular Power Supply is a reliable, cost-effective PSU designed for modern gaming PCs and mid-to-high-end desktop builds . It features a PCIe 5.0 16-pin (300W) connector to support NVIDIA GeForce RTX 40/50 Series GPUs , making it suitable for systems with next-generation graphics cards.

With 80 PLUS Bronze efficiency , active PFC , and comprehensive protection circuits , this PSU delivers stable power delivery across all rails. The non-modular design means all cables are permanently attached, which may affect cable management but ensures simplicity and lower cost.

Power & Efficiency

• Rated Wattage: 750W continuous output
• Efficiency Rating: 80 PLUS Bronze – up to 85% efficiency at typical loads
• Energy Savings: Reduces heat generation and power waste
• Input Voltage Range: 100–240V AC – wide compatibility for global use
• Input Frequency: 50–60Hz – standard for most regions
• DC-to-DC Power Design: Ensures stable voltage and efficient power delivery

Connectors & Compatibility

• Motherboard Connector:
  • 1 x 24-pin ATX – standard for modern motherboards
• CPU Connectors:
  • 2 x 8-pin (4+4) EPS – dual CPU power for high-end CPUs
• GPU Connectors:
  • 1 x PCIe 5.0 (16-pin) – native support for RTX 40/50 Series GPUs
    • Delivers up to 300W per connector
    • Ideal for high-power GPUs
  • 2 x 6+2-pin PCIe – for older or additional GPUs
• Storage Connectors:
  • 5 x SATA – for SSDs, HDDs, and optical drives
  • 2 x Molex (Peripheral) – for case fans, hard drives, and other peripherals
  • 1 x FDD – for legacy floppy drives (rarely used today)
• Non-Modular Design:
  • All cables are permanently attached
  • May impact cable management and airflow in the case

Cooling & Thermal Management

• Fan Size: 120mm sleeve bearing fan
• Noise Level:
  • Low noise under light loads
  • Smart fan control adjusts speed based on temperature
• Thermal Protection:
  • Over Temperature Protection (OTP) – shuts down if internal temp exceeds safe limit
  • Thermally optimized design for long-term reliability

Protection Features

This PSU includes comprehensive protection circuits to safeguard your system:

• Over Current Protection (OCP)
• Over Voltage Protection (OVP)
• Over Power Protection (OPP)
• Short Circuit Protection (SCP)
• Over Temperature Protection (OTP)
• Under Voltage Protection (UVP)

These features protect your components from voltage spikes, short circuits, and overheating.

Design & Build Quality

• Form Factor: ATX – fits most standard cases
• Dimensions: 140 x 150 x 86 mm – standard size for ATX PSUs
• Cable Management:
  • Non-modular – fixed cables
  • May require careful routing for clean build
• Build Material:
  • High-quality steel chassis for durability
  • Reinforced connectors for long-term reliability