MSI MAG A550BN 550W 80+ Bronze Non-Modular Power Supply Unit
Brand: MSI
Price: ₹3,290 (inclusive of GST · genuine product with warranty)
550W Non-Modular ATX PSU — 80 PLUS Bronze (up to 85% efficiency), Single +12V Rail (546W), DC-DC Circuit Design, 120mm Low-Noise Fan, Active PFC, 5-Year Warranty. The MSI MAG A550BN is a 550W non-modular ATX power supply designed for entry-level and mid-range gaming PCs. With 80 PLUS Bronze efficiency up to 85%, a single +12V rail delivering up to 546W, and a 120mm low-noise sleeve bearing fan, it provides stable and efficient power for modern mainstream CPUs and GPUs. DC-to-DC circuit design
Specifications
| Size | 120mm |
|---|---|
| Type | Power Supply |
| Modular | Non modular |
| Wattage | 550W |
| 80 PLUS Rating | Bronze |
About this product
550W Non-Modular ATX PSU — 80 PLUS Bronze (up to 85% efficiency), Single +12V Rail (546W), DC-DC Circuit Design, 120mm Low-Noise Fan, Active PFC, 5-Year Warranty.
The MSI MAG A550BN is a 550W non-modular ATX power supply designed for entry-level and mid-range gaming PCs. With 80 PLUS Bronze efficiency up to 85%, a single +12V rail delivering up to 546W, and a 120mm low-noise sleeve bearing fan, it provides stable and efficient power for modern mainstream CPUs and GPUs. DC-to-DC circuit design, active PFC, and full industrial-grade protection (OCP, OVP, OPP, OTP, SCP) ensure reliable operation, making the MAG A550BN a solid choice for budget-conscious gaming and office builds.
> 80 PLUS Bronze Efficiency — Up to 85% efficiency under typical loads reduces wasted power and heat, improving system efficiency and lowering electricity usage.
> Single +12V Rail — Delivers up to 45.5A / 546W on the +12V rail for stable power to the CPU and GPU, ideal for mainstream gaming builds.
> DC-to-DC Circuit Design — Improves voltage stability on the minor rails and helps maintain reliable power delivery under changing loads.
> 120mm Low-Noise Fan — 120mm sleeve-bearing fan balances cooling and acoustics for quiet operation during gaming and everyday use.
> Active PFC — Active power factor correction reduces reactive power and improves input power quality.
> Industrial-Grade Protections — Includes OCP, OVP, OPP, OTP, and SCP to safeguard your system against electrical faults.
> Non-Modular Design — Fixed cables reduce cost and complexity, suitable for budget builds where ultimate cable minimization is not critical.
> 5-Year Warranty — Backed by MSI with a 5-year limited warranty, indicating confidence in long-term reliability.
Spec
Detail
Product Name
MAG A550BN
Power Wattage
550W
Efficiency Rating
80 PLUS Bronze (up to 85%)
Form Factor
ATX
Modular
No (non-modular)
Input Voltage
100–240 VAC
Input Current
115Vac/8.0A max; 230Vac/4.0A max
Input Frequency
50–60 Hz
PFC Type
Active PFC
Fan Size
120 mm
Fan Bearing
Sleeve Bearing
Dimensions (D × W × H)
140 × 150 × 86 mm
+12V Rail
Single rail, 45.5A, 546W max
+3.3V / +5V
20A each, combined 110W
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