MSI MAG A550BN 550W ATX 3.0 PCIe 5.0 80 Plus Bronze Non-Modular Power Supply
Overview:
MSI MAG A550BN provides players with a safe, reliable, and efficient entry-level power supply option. Its core features include 80 PLUS Bronze certification, DC to DC circuit design, 12V single rail, active PFC, and low-noise fan.
The MSI MAG A550BN will be one of the best choices for players who are just getting started with looking into DIY computers. After installation, gamers can immediately enjoy a reliable performance experience without additional settings.
The MSI MAG A550BN 550W 80 Plus Bronze Power Supply delivers stable, efficient, and budget-friendly performance tailored for modern entry-level and mid-range PC builds. Compliant with the ATX 3.0 standard and equipped with PCIe 5.0 (12VHPWR) support, this PSU is ready for today’s and tomorrow’s graphics cards, including the NVIDIA RTX 40 series.
The MAG A550BN ensures up to 85% energy efficiency with its 80 Plus Bronze certification and integrates a reliable 120mm fan for consistent, quiet cooling. Despite being non-modular, its clean layout and durable cables offer simplicity for straightforward builds.
If you’re building a performance-focused rig on a budget, the MSI MAG A550BN 550W Power Supply is a future-ready, efficient, and durable solution.
Key Features:
80 Plus Bronze Certified – Up to 85% efficiency for reduced power loss
ATX 3.0 Compliant – Enhanced power excursion support for next-gen components
PCIe 5.0 Ready – Includes native 16-pin (12VHPWR) cable for modern GPUs
Reliable 550W Output – Ideal for entry-to-mid-range systems
Non-Modular Design – Fixed cable layout for simple installations
120mm Quiet Cooling Fan – Ensures stable operation with low noise
All-Round Protection – OVP, OCP, SCP, OPP, OTP for safety and longevity
Compact ATX Form Factor – Fits standard ATX PC cases with ease
3-Year MSI Warranty – Backed by trusted brand reliability
Specification Table :
| Specification | Details |
|---|---|
| Model | MSI MAG A550BN |
| Wattage | 550 Watts |
| Efficiency Rating | 80 Plus Bronze |
| ATX Version | ATX 3.0 |
| PCIe 5.0 Support | Yes – 1× 16-pin (12VHPWR) |
| Modular Design | Non-Modular |
| Fan Size | 120mm Quiet Fan |
| Input Voltage Range | 100V–240V |
| Input Frequency | 50 – 60 Hz |
| Connectors | 1× ATX (24-pin), 1× EPS (4+4-pin), 2× PCIe (6+2), 1× PCIe 5.0 (16-pin), 5× SATA, 2× Molex |
| Protections | OVP / OCP / SCP / OTP / OPP |
| Dimensions | 150 × 140 × 86 mm |
| Warranty | 3 Years |
