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be quiet! System Power B10 power supply unit 550 W 20+4 pin ATX ATX Black

SKU
BN327
£64.98 £54.15
550W, DC/DC, 80 PLUS Bronze, 120 mm, 1800 RPM, 25.7 dB, 20+4-pin, PCI-e 6+2-pin, 5x SATA, 150 x 140 x 86 mm
 
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PROVEN RELIABILITY, QUIET OPERATION
System Power 10 550W has been built with price-conscious users in mind that do not want to dispense on reliability and quietness. Elaborated features such as a temperature-controlled fan and a remarkably low stand-by-drain underline the value System Power 10 550W offers even at entry-level.

VERY QUIET OPERATION
High-quality fan for low noise
System Power 10 550W is equipped with a temperature-controlled 120mm quality fan. It provides the low noise operation that be quiet! is famous for, offering remarkable quietness at this price-level.

HIGH PERFORMANCE FOR YOUR SYSTEM
Proven reliability for CPU and GPU
System Power 10 550W provides stable and dependable power for CPU and GPU. This ensures a steady and reliable operation even when your PC meets an unexpectedly heavy load.

80 PLUS® BRONZE CERTIFICATION
Efficient operation
The 80 PLUS Bronze certification of System Power 10 550W Bronze with an efficiency rating of up to 89.1% is convincing evidence of this PSU’s power saving operation.

STRONG 12V RAIL
For a stable PCIe graphics support
System Power 10 550W provides enough power for demanding graphics cards. Safety protections defend against overcurrents, over- and undervoltages, overtemperature, short circuits and overloads, thus keeping your valuable components safe.
Cooling
Fan diameter12 cm
Number of fans1 fan(s)
Fan speed0 - 1800 RPM
Cooling typeActive
Performance
On/off switchYes
Power supply unit (PSU) form factorATX
Noise level (quiet mode, 50%)9.4 dB
Noise level (silent mode, <30%)8.6 dB
Noise level (full-load mode, 100%)25.7 dB
80 PLUS certification80 PLUS Bronze
PurposePC
ATX version2.52
EPS version2.92
Noise level25.7 dB
Mean time between failures (MTBF)100000 h
Country of originGermany
CertificationCB, TÜV, cRUus, cTUVus, RCM (Australia), BSMI, CU (Russia)
Bearing technologySleeve
Design
80 PLUS certification80 PLUS Bronze
CertificationCB, TÜV, cRUus, cTUVus, RCM (Australia), BSMI, CU (Russia)
Product colourBlack
Fan diameter12 cm
On/off switchYes
Number of fans1 fan(s)
Fan speed0 - 1800 RPM
Country of originGermany
Cooling typeActive
Power
Total power550 W
Power Good signal delay range100 - 150 ms
AC input voltage200 - 240 V
AC input frequency50 Hz
Input current4 A
Power factor0.95
Power Factor Correction (PFC) typeActive
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
Power protection featuresOver current, Over power, Over voltage, Overheating, Short circuit, Under voltage
Hold time17 ms
Efficiency89.1%
Ports & interfaces
Motherboard power cable length55 cm
SATA power cable length450,550,570,670,690 mm
Peripheral (Molex) power cable length790 mm
PCI Express power cable length65 cm
CPU power cable length60 cm
Motherboard power connector20+4 pin ATX
Number of SATA power connectors5
Number of PATA power connectors1
Peripheral (Molex) power connectors (4-pin)1
PCI Express power connectors (6+2 pin)2
CPU P4 connector (4-pin)1
CPU power connector (4+4 pin)Yes
ATX power connector (20+4 pin)Yes
Cabling typeNon-Modular
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%
Weight & dimensions
Width140 mm
Depth86 mm
Height150 mm
Weight1.83 kg
Packaging data
Screws includedYes
Package depth268 mm
Package width195 mm
Package height97 mm
Package weight2.2 kg
ManualYes
Manual languagesGerman, English, Spanish, French, Polish, Russian
Technical details
Sustainability certificatesENERGY STAR, ErP
Warranty period5 year(s)
Compliance certificatesCCC, CE, Federal Communications Commission (FCC), RoHS, WEEE
Certificates
80 PLUS certification80 PLUS Bronze
CertificationCB, TÜV, cRUus, cTUVus, RCM (Australia), BSMI, CU (Russia)
Packaging content
Screws includedYes
ManualYes
Other features
Screws includedYes
Noise level (quiet mode, 50%)9.4 dB
Noise level (silent mode, <30%)8.6 dB
Noise level (full-load mode, 100%)25.7 dB
ManualYes

Frequently asked questions

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