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  • Current product
  • 63,-
  • 70,-
  • 550 W
  • 650 W
  • 80 PLUS Bronze
  • 80 PLUS Bronze

Product information

Key specs

Power
550 W
Certification (PSU)
80 PLUS Bronze
Form factor (motherboards)
ATX
Fan diameter
120 mm
Undervoltage protection
Yes

Pros and cons

According to our computer power supply unit expert
  • The 80 Plus Bronze certificate indicates that it's at least 85% efficient.
  • This computer power supply unit supports ATX 3.0 and PCIe 5.0 setups.
  • Since it's protected from voltage spikes, undervoltage, overvoltage, short circuiting, and overheating, you can safely use the power supply unit in any situation.
  • If you have a powerful video card, it's better to choose a computer power supply unit of 650W or more.
  • Note: this power supply unit doesn't fit in a Mini-ITX or Micro-ATX case.
Product Expert computer power supply units

Description

Supply the components of your PC with power with the MSI MAG A550BN computer power supply unit. The MAG A550BN is suitable for an ATX case. This powerful computer power supply unit has a 550W power. Thanks to this, you use the PSU for a basis gaming setup. It also has the 80 PLUS Bronze certificate. This makes the PSU energy-efficient, because it uses 82% of the power for the power supply of the computer. In addition, this computer power supply unit is safe from voltage spikes, short circuit, and overheating, among others.

Supply the components of your PC with power with the MSI MAG A550BN computer power supply unit. The MAG A550BN is suitable for an ATX case. This powerful computer power supply unit has a 550W power. Thanks to this, you use the PSU for a basis gaming setup. It also has the 80 PLUS Bronze certificate. This makes the PSU energy-efficient, because it uses 82% of the power for the power supply of the computer. In addition, this computer power supply unit is safe from voltage spikes, short circuit, and overheating, among others.

Tips for using this product

Read our tips and find out all about how to set up your product and use it the right way.

Download the manual

Download the manual (581.71 KB)

This is what you get

  • Manual (581.71 KB)
  • FDD power cord (1x)
  • CPU power cord (1x)
  • PCIe power cord (2x)
  • SATA power cord (5x)
  • Molex power cord (2x)

This is what you get

  • FDD power cord (1x)
  • CPU power cord (1x)
  • PCIe power cord (2x)
  • SATA power cord (5x)
  • Molex power cord (2x)

Download the manual

Download the manual (581.71 KB)

Key specs

Power
550 W
Certification (PSU)
80 PLUS Bronze
Form factor (motherboards)
ATX
Fan diameter
120 mm
Undervoltage protection
Yes

Reviews

Rating

1 reviews with 5 stars

1 reviews with 4 stars

0 reviews with 3 stars

0 reviews with 2 stars

0 reviews with 1 star

Rating per section

Energy consumption
10,0
Capacity
10,0

Most helpful reviews

10/10

Worth buying for a Retro PC.

  • Affodable
  • 5V line is stable.
  • ATX plug also works as a 20pin config.

I needed an affordable power supply for a retro PC. The cheapest I bought elsewhere had 5V line problems (dropping to 4.5V under load), so I returned it and bought this one on CoolBlue. I am very happy. 5V line is rock stable and I don't need to use a 24-20pin ATX adapter cable, this one allows you to disconnect the 4 additional pins. I wish it would have another floppy disk plug, but that is expected. Very quiet also. Nothing to complain about.

  • Iulian
  • 24 December 2024
8,0/10

Replacing an older power supply

  • Silence
  • Price

Bought to replace a power supply from a 2012 PC whose power supply fan was no longer working properly. Easy to install and cables not too stiff. Compared to the old power supply, this one is quieter.
Bought from CB because of the simplicity of ordering and service history.

  • Oprah winfrey
  • 6 March 2025
  • Automatically translated from Dutch

Specifications

Product

Product number
951117
Manufacturer code
306-7ZP2A11-CE0
Brand
MSI
Warranty
10 years
Processing of your defect
Via Coolblue

General properties

Power
550 W
Certification (PSU)
80 PLUS Bronze
Fan diameter
120 mm

Connectors

Total amount of power connectors
12
Amount of 20+4 pin ATX (motherboard) connectors
1
1
2
2
1
5
3 x 8 pin PCIe to 16 pin 5.0 cable, 4 x 8 pin PCIe to 16 pin 5.0 cable

Physical properties

Form factor (motherboards)
ATX
Width
15 cm
Depth
14 cm
Height
8,6 cm
Color
Black
Material
Metal, Plastic

Security

Undervoltage protection
Yes
Overvoltage protection
Yes
Overheating protection
Yes
Voltage spike protection
Yes
Short-circuit protection
Yes

Power usage

Maximum power consumption
550 W
Energy-efficient
Yes
Silent Mode
No
Zero RPM mode
No

This is the one

MSI MAG A550BN
MSI MAG A550BN
63,-
Limited supply, order now
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