MSI (MAG A550BN) 550 W, 100 - 240 V, 8A, 4A, 50 - 60 Hz, 80+ Bronze ATX PSU

Power cuts, unstable voltages and noisy fans can ruin a gaming build before you even start. The MSI (MAG A550BN) 550 W, 100 - 240 V, 8A, 4A, 50 - 60 Hz, 80+ Bronze ATX PSU solves those headaches by delivering clean, efficient power with a quiet cooling system, giving you a stable platform for your first DIY PC.

MSI (MAG A550BN) 550 W, 100 - 240 V, 8A, 4A, 50 - 60 Hz, 80+ Bronze ATX PSU - a reliable foundation for entry-level builds

New builders often worry about power-related failures that can damage expensive components. Inconsistent voltage or insufficient protection can lead to crashes, data loss, or hardware burnout. This power supply removes that risk by offering comprehensive protection circuits, a single-rail 12 V design for stable GPU power, and an 80 PLUS Bronze efficiency rating that keeps your electricity bill low while maintaining performance.

Benefits

A solid power source lets you focus on gaming, not troubleshooting.

• Lower electricity use thanks to 85 % efficiency, saving money over time.
• Quiet operation from a 120 mm low-noise fan, so you hear the game, not the PSU.
• Built-in protection (OCP, OVP, SCP, OPP, OTP) shields your components from faults.
• Single-rail 12 V output provides consistent power to graphics cards under load.
• Five-year limited warranty gives peace of mind for long-term use.

Usages of MSI (MAG A550BN) 550 W, 100 - 240 V, 8A, 4A, 50 - 60 Hz, 80+ Bronze ATX PSU

The MSI (MAG A550BN) 550 W, 100 - 240 V, 8A, 4A, 50 - 60 Hz, 80+ Bronze ATX PSU is ideal for budget-friendly gaming rigs, home office PCs and entry-level workstations. Its non-modular cabling fits standard ATX cases, while the 2 × 6+2 pin PCIe connectors support most mid-range graphics cards. Use it to power a system with a modern CPU, a single GPU, and several storage drives without compromising stability.

Key Features of MSI (MAG A550BN) 550 W, 100 - 240 V, 8A, 4A, 50 - 60 Hz, 80+ Bronze ATX PSU

• Efficiency: 85 %. High efficiency reduces waste heat and lowers power costs.
• Form factor: ATX. Fits the majority of desktop cases and motherboards.
• Input voltage: 100 - 240 V. Works with power supplies worldwide, eliminating the need for a converter.
• Input current @220 V: 4 A. Keeps mains draw within typical household limits.
• Input current @110 V: 8 A. Safe operation on North American outlets.
• Fan diameter: 12 cm. Small yet effective fan provides adequate cooling with minimal noise.
• Power factor correction: Active. Improves overall power quality and reduces strain on the electrical network.
• Protection: Over current, Over voltage, Short circuit, Over power, Over temperature. Comprehensive safeguards keep your components safe from electrical anomalies.
• Connectors: 2 × 6+2 pin PCIe, 1 × 4+4 pin CPU, 5 × SATA, 2 × Molex, 1 × Floppy power. Offers versatile connectivity for a range of peripherals and storage devices.
• Dimensions: 86 mm (H) × 140 mm (D) × 150 mm (W). Compact size fits most mid-tower cases without sacrificing airflow.

Specifications