Description
MSI MAG A550BN | 550W | ATX | 80 PLUS Bronze | Non-Modular | PSU
MSI MAG A550BN — 550W ATX Power Supply The reliable entry-level choice for your gaming build. The MSI MAG A550BN delivers 550W of stable power with 80 PLUS Bronze efficiency (85%), DC-to-DC circuit design, a single +12V rail at 45.5A, and active PFC. Backed by a comprehensive protection suite and a 5-year limited warranty, it’s the dependable foundation for any mid-range PC build. ▼ Product Description 80 PLUS Bronze — 85% Efficiency 80 PLUS Bronze certification ensures at least 85% efficiency under typical loads, reducing wasted energy and heat output for a cooler, quieter system. DC-to-DC Circuit Design DC-to-DC design reduces output voltage instability and adds stability to power delivery, keeping your components running smoothly under load. Single +12V Rail — 45.5A / 546W A single +12V rail delivers clean, simple power to your CPU and GPU without splitting, ideal for straightforward mid-range builds. 120mm Low-Noise Sleeve Bearing Fan The sleeve bearing fan reduces noise while maintaining excellent heat dissipation, keeping the PSU cool and quiet during extended gaming sessions. Comprehensive Protection Suite OCP, OVP, SCP, OPP, and OTP protection mechanisms keep your components safe from power anomalies at all times. 5-Year Limited Warranty Backed by MSI’s 5-year limited warranty for long-term peace of mind. ▼ Technical Specifications General Model MAG A550BN Form Factor ATX Wattage 550W Certification 80 PLUS Bronze (85% efficiency) Cabling Non-Modular Colour Black Dimensions (W x D x H) 150 x 140 x 86 mm Warranty 5 Years Power Output +12V Rail 45.5A / 546W (single rail) +5V Rail 20A / 110W +3.3V Rail 20A / 110W -12V Rail 0.3A / 3.6W +5Vsb Rail 2.5A / 12.5W Input AC Input Voltage 100 – 240V AC Input Frequency 50 – 60 Hz Max Input Current 8A @ 110V / 4A @ 220V PFC Active Connectors ATX Motherboard 1 x 20+4-pin (60cm cable) CPU / EPS 1 x 4+4-pin PCIe 6+2-pin 2 x 6+2-pin SATA Power 5 x SATA Peripheral (Molex) 2 x 4-pin Floppy 1 Cooling Fan 1 x 120mm sleeve bearing (active cooling) Protection Protection Features OCP, OVP, SCP, OPP, OTP ▼ What's Included Package Contents ✓ MSI MAG A550BN Power Supply Unit ✓ Non-modular cable set (pre-attached) ✓ Mounting screws ▼ Why Choose This Product Reliable. Efficient. Backed by MSI. ✅ 550W — ideal for mid-range gaming builds ✅ 80 PLUS Bronze — 85% efficiency ✅ DC-to-DC design for stable voltage output ✅ Single +12V rail at 45.5A ✅ 120mm low-noise sleeve bearing fan ✅ Full protection: OCP, OVP, SCP, OPP, OTP ✅ 5-year limited warranty