be quiet! · Power Supply Unit

be quiet! System Power B10 price in United Kingdom

MPN BN327EAN 4260052189078

Noise25.7 dB
Weight1.83 kg
ColourBlack
Total power550 W

Lowest price incl. delivery

£59.99

at Back to the OfficeFree deliveryIn stock

1 store
1 in stock
1 with free delivery
Checked 6 Oct 2026, 05:40 UTC

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Full specifications and side-by-side comparison

Prices in United Kingdom

1 store · prices in GBP · updated 6 Oct 2026, 05:40 UTC

Lowest price£59.99at Back to the Office · free shippingGo to Back to the Office

Price range across 1 offer

Every store asks the same price.

1 of 1 stores in stock
1 with free shipping
Checked 6 Oct 2026, 05:40 UTC

Back to the OfficeLowest pricebe quiet! System Power B10 power supply unit 550 W 20+4 pin ATX ATX Black In stockFree shipping
£59.99incl. free shipping
Go to store : Back to the Office (opens in a new tab)

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Best price · Back to the Office£59.99

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Product details

Identification

Brand: be quiet!
Product: System Power B10
Full name: be quiet! System Power B10 power supply unit 550 W 20+4 pin ATX ATX Black
Manufacturer part number: BN327
EAN / UPC: 4260052189078
Category: Power Supply Unit

73 specifications from the manufacturer's data sheet

Power

Total power	550 W
AC input voltage	200 - 240 V
AC input frequency	50 Hz
Input current	4 A
Power factor	0.95
Power Factor Correction (PFC) type	Active
Combined power (+3.3V)	120 W
Combined power (+12V)	550 W
Combined power (+5V)	120 W
Combined power (-12V)	3.6 W
Combined power (+5Vsb)	15 W
Max output current (+3.3V)	20 A
Max output current (+12V)	45.83 A
Max output current (+5V)	20 A
Max output current (-12V)	0.3 A
Max output current (+5Vsb)	3 A
Efficiency	89.1%
Hold time	17 ms
Power Good signal delay range	100 - 150 ms
Power protection features	Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage

Ports & interfaces

Motherboard power connector	20+4 pin ATX
Motherboard power cable length	55 cm
Number of PATA power connectors	1
Number of SATA power connectors	5
SATA power cable length	450,550,570,670,690 mm
Peripheral (Molex) power connectors (4-pin)	1
Peripheral (Molex) power cable length	790 mm
PCI Express power connectors (6+2 pin)	2
PCI Express power cable length	65 cm
CPU P4 connector (4-pin)	1
CPU power connector (4+4 pin)	Yes
CPU power cable length	60 cm
ATX power connector (20+4 pin)	Yes
PCI Express connector	Yes
Cabling type	Non-Modular

Performance

Purpose	PC
Power supply unit (PSU) form factor	ATX
80 PLUS certification	80 PLUS Bronze
ATX version	2.52
EPS version	2.92
Noise level	25.7 dB
Bearing technology	Sleeve
Mean time between failures (MTBF)	100000 h

Design

Product colour	Black
Cooling type	Active
Fan diameter	12 cm
Number of fans	1 fan(s)
Fan speed	0 - 1800 RPM
Illumination	No
On/off switch	Yes

Operational conditions

Operating temperature (T-T)	0 - 40 °C
Storage temperature (T-T)	-20 - 70 °C
Operating relative humidity (H-H)	0 - 90%
Storage relative humidity (H-H)	0 - 95%

Certificates

Compliance certificates	CCC, CE, Federal Communications Commission (FCC), RoHS, WEEE
Certification	CB, TÜV, cRUus, cTUVus, RCM (Australia), BSMI, CU (Russia)

Weight & dimensions

Width	140 mm
Depth	86 mm
Height	150 mm
Weight	1.83 kg

Packaging data

Manual	Yes
Manual languages	German, English, Spanish, French, Polish, Russian
Package width	195 mm
Package depth	268 mm
Package height	97 mm
Package weight	2.2 kg