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header-product Power supply unit MSI MAG A550BN 550W ATX, 80 PLUS Bronze, 120 mm fan, Active PFC
52.99 €

Power supply unit MSI MAG A550BN 550W ATX, 80 PLUS Bronze, 120 mm fan, Active PFC

Fast delivery available
MSI MAG A550BN 550W ATX power supply Photo 1
MSI MAG A550BN 550W ATX power supply Photo 2
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MSI MAG A550BN 550W ATX power supply Photo 5
MSI MAG A550BN 550W ATX power supply Photo 1
MSI MAG A550BN 550W ATX power supply Photo 2
MSI MAG A550BN 550W ATX power supply Photo 3
MSI MAG A550BN 550W ATX power supply Photo 4
MSI MAG A550BN 550W ATX power supply Photo 5
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Power supply unit MSI MAG A550BN 550W ATX, 80 PLUS Bronze, 120 mm fan, Active PFC

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Power supply unit MSI MAG A550BN 550W ATX, 80 PLUS Bronze, 120 mm fan, Active PFC

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Short description

MSI MAG A550BN is a 550 W ATX power supply for desktop PCs with 80 PLUS Bronze efficiency and Active Power Factor Correction. It features a 120 mm cooling fan, universal 100–240 V AC input, OTP protection and multiple rails (±12V, +5V, +3.3V) with specified output currents. Suitable for mid-range systems requiring stable power delivery.
Available at price 52.99 €: 1 pcs.
Total available for order: 177 pcs.
Warranty: 5 Years
SKU: 4317036
free shipment

Cheapest delivery:

Venipak Pickup LV, Venipak Locker LV

Pick-up points

Venipak Pickup LV

Venipak Locker LV

Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
16.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
21.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 2.02 kg)
Parcel couriers
Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
21.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
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Payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay
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Product information

Description

MAG A550BN is an entry-level computer power supply designed to offer reliable and efficient performance for gamers building their first DIY systems. The unit features 80 PLUS Bronze certification, a DC-to-DC circuit design, a 12V single rail, active PFC, and a low-noise 120 mm fan, delivering stable power without requiring additional configuration after installation.

Advantages

80 PLUS Bronze certification improves energy efficiency and reduces power consumption. The DC-to-DC circuit design enhances output voltage stability. A 120 mm sleeve-bearing fan provides effective cooling with reduced noise. Built-in protections (OCP, OVP, SCP, OPP, OTP) safeguard components, and a 5-year limited warranty ensures long-term reliability.

Key specifications

  • Certification: 80 PLUS Bronze
  • Design: DC-to-DC circuit
  • Rail: 12V single rail
  • Power factor correction: Active PFC
  • Cooling: 120 mm low-noise fan (sleeve bearing)
  • Protections: OCP, OVP, SCP, OPP, OTP
  • Warranty: 5-year limited warranty

How to use

Install the MAG A550BN into a compatible PC case, connect the main 24-pin ATX and CPU/EPS power connectors to the motherboard, and attach required peripheral and GPU power cables. Ensure proper cable routing for airflow and verify all connections before powering on. No additional software or configuration is required for standard operation.

Recommendations

For optimal performance, use the MAG A550BN with systems whose total power draw remains within the unit’s rated capacity. Maintain adequate case ventilation and periodically check the fan and dust filters to preserve cooling efficiency and reduce noise.

Specifications

Total power:
550 W
Efficiency:
85 %
Motherboard power connector:
20+4 pin ATX
80 PLUS certification:
80 PLUS Bronze
Fan diameter:
120 mm
Product colour:
Black
All features

Power

Total power:
550 W
Efficiency:
85 %
Power Factor Correction (PFC) type:
Active
Power protection features:
Over current, Over power, Over voltage, Short circuit, Overheating
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
AC input frequency:
50 - 60
AC input voltage:
100 - 240
Maximum input current (@110V):
8 A
Maximum input current (@220V):
4 A

Ports & interfaces

Motherboard power connector:
20+4 pin ATX
ATX Power connector (24-pin):
No
Number of SATA power connectors:
5
Peripheral (Molex) power connectors (4-pin):
2
EPS power connector (8-pin):
No
ATX power connector (20+4 pin):
No
CPU power connector (4+4 pin):
Yes
PCI Express power connectors (6+2 pin):
2
Cabling type:
Non-Modular
Motherboard power cable length:
600 mm
EPS power connector (4+4 pin):
Yes

Performance

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

Design

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

Weight & dimensions

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

Logistics data

Harmonized System (HS) code:
84733020

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Stock data
Warehouse Stock Delivery to the store Store Price
EU1 1 16.07.2026 52.99 €
EU57 2 20.07.2026 52.99 €
BT19 12 Tomorrow Best delivery 52.99 €
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Available only for legal entities
Warehouse Stock Delivery to the store Store Price
WH345 17 21.07.2026 65.49 €
WH109 24 04.08.2026 77.49 €
52.99 €
Stock: 1
Delivery Date: 16.07.2026
Warehouse: EU1
52.99 €
Stock: 2
Delivery Date: 20.07.2026
Warehouse: EU57
52.99 €
Stock: 12
Delivery Date: Tomorrow Best delivery
Warehouse: BT19
54.49 €
Stock: 6
Delivery Date: Thursday
Warehouse: BT10
55.49 €
Stock: 59
Delivery Date: 21.07.2026
Warehouse: WH337
59.99 €
Stock: 25
Delivery Date: 21.07.2026
Warehouse: WH94
69.99 €
Stock: 2
Delivery Date: 21.07.2026
Warehouse: WH113
73.49 €
Stock: 24
Delivery Date: 21.07.2026
Warehouse: EU3
74.49 €
Stock: 5
Delivery Date: 21.07.2026
Warehouse: EU16
Available only for legal entities
65.49 €
Stock: 17
Delivery Date: 21.07.2026
Warehouse: WH345
77.49 €
Stock: 24
Delivery Date: 04.08.2026
Warehouse: WH109

Customer reviews

Customer questions

FAQ

How much does the MSI MAG A550BN 550W ATX power supply cost, and is it available for purchase?

The price is 52.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 177 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 16.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All MSI products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized MSI service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: total power, efficiency, motherboard power connector, 80 plus certification, fan diameter, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

Where can I download the instructions for MSI MAG A550BN 550W ATX power supply?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.
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14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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