
Description
MSI MAG A550BN 550W ATX Power Supply
This is a MSI MAG A550BN 550W Power Supply, a reliable ATX12V/EPS12V compliant power supply unit designed for desktop PC systems. It delivers stable power with 85% efficiency, a single +12V rail, and universal AC input support. MPN: MAGA550BN; UPC: 824142258392. Manufacturer: MSI.
Key Features of MSI MAG A550BN 550W PSU
- 550W Power Capacity – Provides ample power for mid-range gaming and productivity builds.
- 85% Efficiency – Ensures energy-efficient operation under typical loads.
- ATX12V/EPS12V Compliance – Meets standard form factor and connector specifications for broad motherboard compatibility.
- Single +12V Rail – Delivers up to 45.5A on the primary rail for consistent performance with modern components.
- Single Fan Cooling – Equipped with one fan for effective thermal management.
- Universal Input Voltage – Supports 120 V AC and 230 V AC for global use.
- Multiple Output Rails – Includes +3.3V @ 20A, +5V @ 20A, +12V @ 45.5A, -12V @ 0.3A, and +5VSB @ 2.5A.
Comprehensive Technical Specifications
| Specification | Details |
|---|---|
| Brand | MSI |
| Manufacturer | MSI |
| Model | MAG A550BN |
| Product Name | MAG A550BN 550W Power Supply |
| Product Type | Power Supply |
| MPN / Manufacturer Part Number | MAGA550BN |
| UPC | 824142258392 |
| Total Power Output | 550W |
| Efficiency | 85% |
| Specification Compliance | ATX12V/EPS12V |
| Number of Fans | 1 |
| Number of +12V Rails | 1 |
| Input Voltage | 120 V AC / 230 V AC |
| Output Voltage: +3.3 V | 20 A |
| Output Voltage: +5 V | 20 A |
| Output Voltage: +12 V | 45.5 A |
| Output Voltage: -12 V | 0.3 A |
| Output Voltage: +5 VSB | 2.5 A |
| Product Dimensions (Height x Width x Depth) | 5.9" x 5.5" x 3.4" |
| Weight | 4.60 lbs |
Installation Guide for ATX Power Supply
Standard ATX installation typically takes 10-15 minutes with basic tools. Follow PC case and motherboard manuals for precise steps.
- Power off and unplug the system; discharge static by touching grounded metal.
- Mount PSU in case using screws; ensure fan faces intake or exhaust per case airflow.
- Connect 24-pin ATX, EPS12V (if needed), SATA, PCIe, and peripheral cables to components.
- Route cables neatly; secure with ties for airflow.
- Test power-on outside case if possible; pro tip: Verify all connections before closing case.
- Maintenance: Dust fan periodically with compressed air; operate in well-ventilated area.
Why Choose MSI MAG A550BN
The MSI MAG A550BN offers dependable 550W performance with ATX standards compliance, single-rail stability, and compact dimensions suitable for most mid-tower cases.
Equip your PC build with the MSI MAG A550BN 550W Power Supply—Order now!
Brand: MSI
Type: Power Supply
Color: Black
Compatible Brand: For MSI
Model: MAG A550BN
MPN: MAGA550BN
Compatible Model: MAG A550BN
Form Factor: ATX
Cooling: 1 Fan
Voltage Compatibility: 120 V
Connectors: 24 Pin
UPC: 824142258392
