MSI MAG A550BN 550W ATX 80 PLUS Bronze PSU Power Supply

MSI MAG A550BN 550W ATX 80 PLUS Bronze PSU Power Supply

Brand MSI

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2 offers at 2 retailers

Listed since 8 April 2026

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Description

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 CERTIFIEDThe 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 FANThe fan’s sleeve bearing reduces the noise generated while maintaining excellent heat dissipation.DC TO DC CIRCUIT DESIGNAdopted DC-DC circuit design reduces the instability of output voltage, and ads stability to the supply of power.COMPREHENSIVE CIRCUIT PROTECTIONSupports OCP, OVP, SCP, OPP, OTP protectionmechanisms and provides comprehensive protection.5-YEAR LIMITED WARRANTYThe MAG A550BN is proudly backed by a 5-year limited warranty, guaranteeing long term reliable operation.

Specifications

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
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 (8-pin) No
EPS power connector (4+4 pin) Yes
PCI Express power connectors (6+2 pin) 2
CPU power connector (4+4 pin) Yes
ATX Power connector (24-pin) No
ATX power connector (20+4 pin) No
Floppy drive power connector 1
Floppy disk drive connector Yes
Cabling type Non-Modular
80 PLUS certification 80 PLUS Bronze
Purpose PC
Power supply unit (PSU) form factor ATX
Product colour Black
Cooling type Active
Fan diameter 12 cm
Number of fans 1 fan(s)
On/off switch Yes
Width 150 mm
Depth 140 mm
Height 86 mm
Harmonized System (HS) code 84733020

Full specifications

Marque MSI
Référence fabricant maga550bn
EAN 4719072849603

Overview of the MSI MAG A550BN 550W ATX 80 PLUS Bronze PSU Power Supply

Choosing the MSI MAG A550BN 550W ATX 80 PLUS Bronze PSU Power Supply means opting for the expertise of MSI in the Périphériques informatiques category. Its price starting from £46.9 makes it a serious option on the market. Buyers interested in this brand also look at the MSI PRO B860-P WIFI ATX DDR5 Intel LGA 1851 Motherboard – Ultra-Fast Wi-Fi 7, One-Click Overclocking, PCIe 5.0 M.2 Slots to complete their comparison. On Compiral, all displayed prices are updated regularly and retailers are selected for their reliability and quality of customer service.

What makes the MSI MAG A550BN 550W ATX 80 PLUS Bronze PSU Power Supply stand out in 2026

This product stands out for the build quality that is characteristic of the MSI brand. Users particularly appreciate its reliability in daily use and how easy it is to get started right from the first use. The design, intended for regular use, ensures satisfying durability, and the balance between the features offered and the asking price is well received by buyers. MSI has a strong reputation in the Périphériques informatiques category, which makes it easy to access after-sales service and the manufacturer warranty when needed. You can also compare with the MSI PRO B860-P WIFI ATX DDR5 Intel LGA 1851 Motherboard – Ultra-Fast Wi-Fi 7, One-Click Overclocking, PCIe 5.0 M.2 Slots to refine your choice.

Performance and key features

In the Périphériques informatiques category, buyers pay close attention to declared performance and build quality. The MSI MAG A550BN 550W ATX 80 PLUS Bronze PSU Power Supply meets these expectations with technical specifications that reflect MSI's positioning on this segment. The key features, available in the spec sheet on this page, allow you to verify this product matches your needs before finalising your purchase. Also compare with the MSI PRO B860-P WIFI ATX DDR5 Intel LGA 1851 Motherboard – Ultra-Fast Wi-Fi 7, One-Click Overclocking, PCIe 5.0 M.2 Slots from the same brand to refine your decision.

Design and ease of use

The MSI MAG A550BN 550W ATX 80 PLUS Bronze PSU Power Supply is generally described as intuitive by users in the Périphériques informatiques category. MSI designed this product to be accessible from the first use, whether you are a beginner or an experienced user in this range.

Market price ranges in 2026

RangeIndicative price
Entry-levelUnder 2250 £
Mid-range2250 £ to 5250 £
High-endOver 5250 £

To find the MSI MAG A550BN 550W ATX 80 PLUS Bronze PSU Power Supply at the best price today, compare all available offers on Compiral. Our comparison tool updates prices several times a day to ensure you get the lowest rate from our partner retailers. Remember to activate the free delivery filter to reduce the total cost of your purchase. Also check the estimated delivery time at each retailer, which can vary considerably from one shop to another.

Frequently asked questions about MSI MAG A550BN 550W ATX 80 PLUS Bronze PSU Power Supply

Is the MSI MAG A550BN 550W ATX 80 PLUS Bronze PSU Power Supply worth its price in 2026?

In 2026, the MSI MAG A550BN 550W ATX 80 PLUS Bronze PSU Power Supply is listed from £46.9 at our partner retailers. This price is consistent with the positioning of MSI in the Périphériques informatiques category. To judge whether this price is currently attractive, check the price history on our product page. Also compare the total price including delivery to avoid any surprises at checkout.

What warranty does the MSI MAG A550BN 550W ATX 80 PLUS Bronze PSU Power Supply come with?

The MSI MAG A550BN 550W ATX 80 PLUS Bronze PSU Power Supply generally comes with a manufacturer warranty of 1 to 2 years depending on the retailer. In addition to the commercial warranty from MSI, statutory consumer rights apply to all purchases. Check the warranty conditions directly on the retailer's page before finalising your order.

Is the MSI MAG A550BN 550W ATX 80 PLUS Bronze PSU Power Supply in stock?

Stock availability for the MSI MAG A550BN 550W ATX 80 PLUS Bronze PSU Power Supply is updated in real time on Compiral. Retailers showing "In stock" can usually deliver quickly, often within 2 to 5 working days. If the product is temporarily out of stock at one retailer, check the other offers in our table. Check back regularly as stock levels change frequently in the Périphériques informatiques category.

Where can I buy the MSI MAG A550BN 550W ATX 80 PLUS Bronze PSU Power Supply at the best price?

To buy the MSI MAG A550BN 550W ATX 80 PLUS Bronze PSU Power Supply at the best price, compare all available offers in our table at the top of this page. The 2 offers listed include delivery costs to give you the true total cost. Sort by ascending price and filter by free delivery to quickly identify the best deal among our verified partner retailers.

How does the MSI MAG A550BN 550W ATX 80 PLUS Bronze PSU Power Supply compare to competitors in the Périphériques informatiques category?

In the Périphériques informatiques category, the MSI MAG A550BN 550W ATX 80 PLUS Bronze PSU Power Supply occupies a specific market segment. Compared to other available models, it stands out mainly through the balance between its features and its price. To compare objectively, consult the detailed spec sheet on this page and compare specifications with other similar products listed on our comparison tool.

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