MSI · Power Supply Unit

MSI MAG A550BN UK PSU '550W, 80 Plus Bronze certified price in United Kingdom

Model A550BNMPN MAG A550BNEAN 824142258392EAN 4526541038761

ColourBlack
Total power550 W
Motherboard power connector20+4 pin ATX
PurposePC

Lowest price incl. delivery

£42.34

at PCHUB.UKFree deliveryIn stock

3 stores
Range £42.34 – £51.98
Save up to £9.64 vs. the dearest store
3 in stock
1 with free delivery
Checked 6 Oct 2026, 17:41 UTC

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Full specifications and side-by-side comparison

Prices in United Kingdom

3 stores · prices in GBP · updated 6 Oct 2026, 17:41 UTC

Lowest price£42.34at PCHUB.UK · free shippingGo to PCHUB.UK

Price range across 3 offers

Save up to £9.64 (19%) by choosing the cheapest store

3 of 3 stores in stock
1 with free shipping
Checked 6 Oct 2026, 17:41 UTC

PCHUB.UKLowest priceMSI MAG A550BN UK PSU '550W. 80 Plus Bronze certified. 12V Single In stockFree shipping
£42.34incl. free shipping
Go to store : PCHUB.UK (opens in a new tab)
Back to the OfficeMSI 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' In stock£4.99 shipping
£51.98£46.99 + £4.99 shipping+£9.64 (23%) vs lowest
Go to store : Back to the Office (opens in a new tab)
PcNova.co.ukMSI MAG A550BN UK PSU '550W. 80 Plus Bronze certified. 12V Single In stockShipping not stated
£42.34item price, shipping extra
Go to store : PcNova.co.uk (opens in a new tab)

Ad: we may earn a commission when you buy through these links; it never changes the order, which is by total price only. Prices and stock are shown as each store states them, as of 6 Oct 2026, 17:41 UTC, and can change at any time. Taxes are included only where the store includes them.

Price history in United Kingdom

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Best price · PCHUB.UK£42.34

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Product details

Identification

Brand: MSI
Product: MAG A550BN UK PSU '550W, 80 Plus Bronze certified
Full name: 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 Powe
Manufacturer part number: MAG A550BN
EAN / UPC: 824142258392, 4526541038761, 4719072849603, 4719072870485
Category: Power Supply Unit

45 specifications from the manufacturer's data sheet

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 (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 disk drive connector	Yes
Floppy drive power connector	1
PCI Express connector	Yes
Cabling type	Non-Modular

Performance

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

Design

Product colour	Black
Cooling type	Active
Fan diameter	12 cm
Number of fans	1 fan(s)
Illumination	No
On/off switch	Yes

Weight & dimensions

Width	150 mm
Depth	140 mm
Height	86 mm

Logistics data

Harmonized System (HS) code	84733020

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