MSI MAG A550BN UK PSU '550W, 80 Plus Bronze certified

550 W · 80+ Bronze · Non-modular

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Wattage 550 W
Efficiency 80+ Bronze
Modular Non-modular
Form factor ATX

MSI MAG A550BN UK PSU '550W, 80 Plus Bronze certified is a 550 W power supply rated 80+ Bronze (non-modular). Pick one with some headroom above your build's draw.

Specifications

Key specs

Wattage: 550 W
Efficiency: 80+ Bronze
Modular: Non-modular
Form factor: ATX
Part number: MAG A550BN
EAN / UPC: 4719072849603

Power

Total power: 550 W
AC input voltage: 100 - 240 V
AC input frequency: 50 - 60 Hz
Maximum input current (@110V): 8 A
Maximum input current (@220V): 4 A
Power Factor Correction (PFC) type: Active
Combined power (+3.3V): 110 W
Combined power (+12V): 546 W
Combined power (+5V): 110 W
Combined power (-12V): 3.6 W
Combined power (+5Vsb): 12.5 W
Max output current (+3.3V): 20 A
Max output current (+12V): 45.5 A
Max output current (+5V): 20 A
Max output current (-12V): 0.3 A
Max output current (+5Vsb): 2.5 A
Efficiency: 85%
Power protection features: Over current, Over power, Over voltage, Overheating, Short circuit

Ports & interfaces

Motherboard power connector: 20+4 pin ATX
Motherboard power cable length: 60 cm
Number of SATA power connectors: 5
Peripheral (Molex) power connectors (4-pin): 2
EPS power connector (4+4 pin): Yes
PCI Express power connectors (6+2 pin): 2
CPU power connector (4+4 pin): Yes
Floppy drive power connector: 1
Floppy disk drive connector: Yes
PCI Express connector: Yes
Cabling type: Non-Modular

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Performance

80 PLUS certification: 80 PLUS Bronze
Purpose: PC
Power supply unit (PSU) form factor: ATX

Design

Product colour: Black
Cooling type: Active
Fan diameter: 12 cm
Number of fans: 1 fan(s)
On/off switch: Yes

Weight & dimensions

Width: 150 mm
Depth: 140 mm
Height: 86 mm

Check the manufacturer's page before buying.

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About this product

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 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.

80 PLUS BRONZE CERTIFIED

The efficiency of your power supply directly influences your system’s performance and your power consumption. The 80 PLUS BRONZE certification promises lower energy consumption and higher efficiency.

120MM LOW NOISE FAN

The fan’s sleeve bearing reduces the noise generated while maintaining excellent heat dissipation.

DC TO DC CIRCUIT DESIGN

Adopted DC-DC circuit design reduces the instability of output voltage, and ads stability to the supply of power.

COMPREHENSIVE CIRCUIT PROTECTION

Supports OCP, OVP, SCP, OPP, OTP protection mechanisms and provides comprehensive protection.

User manual (PDF) · Datasheet (PDF)

MSI MAG A550BN UK PSU '550W, 80 Plus Bronze certified, 12V Single-Rail, DC-to-DC Circuit, 120mm Fan, Non-Modular, Sleeved Cables, ATX Power Supply Unit, UK Powercord, Black' vs similar power supplies

	MSI MAG A550BN UK PSU '550W, 80 Plus Bronze certified	MSI MAG A550BNL	FSP VIC BD 550W Power supply unit ATX ATX3.1 Black	be quiet! System Power 11 550W
Wattage	550 W	550 W	550 W	550 W
Efficiency	80+ Bronze	80+ Bronze	80+ Bronze	80+ Bronze
Modular	Non-modular	Non-modular	Non-modular	Non-modular
Form factor	ATX	ATX	ATX	ATX
Released	—	2024	2025	2025