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

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.

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
Hold time	17 ms
Efficiency	89.1%
Power Good signal delay range	100 - 150 ms
Power protection features	Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage
Motherboard power connector	20+4 pin ATX
Motherboard power cable length	55 cm
Number of SATA power connectors	5
Number of PATA power connectors	1
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
Cabling type	Non-Modular
80 PLUS certification	80 PLUS Bronze
Purpose	PC
Power supply unit (PSU) form factor	ATX
ATX version	2.52
EPS version	2.92
Noise level	25.7 dB
Bearing technology	Sleeve
Mean time between failures (MTBF)	100000 h
Certification	CB, TÜV, cRUus, cTUVus, RCM (Australia), BSMI, CU (Russia)
Country of origin	Germany
Product colour	Black
Cooling type	Active
Fan diameter	12 cm
Number of fans	1 fan(s)
Fan speed	0 - 1800 RPM
On/off switch	Yes
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%
Width	140 mm
Depth	86 mm
Height	150 mm
Weight	1.83 kg
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
Sustainability certificates	ENERGY STAR, ErP
Warranty period	5 year(s)
Compliance certificates	CCC, CE, Federal Communications Commission (FCC), RoHS, WEEE
Screws included	Yes
Noise level (silent mode, <30%)	8.6 dB
Noise level (quiet mode, 50%)	9.4 dB
Noise level (full-load mode, 100%)	25.7 dB