Be Quiet System Power B8 550W (BN259)

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Мощност на захранването 500 W
PFC защита Активна
Размер на вентилатора 120 мм


FDD захранване  Няма
HDD захранване  2
SATA захранване  6

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Be Quiet B8


Office applications
Gaming systems
Low-budget and quiet PC builds
Feature Details


Full suite of top safety protections defends against over-currents, over- and under-voltages, short circuits, overheating and overloads, thus safeguarding your valuable components
Two independent 12V-rails improve power signal stability
High-quality sleeved cables simplify component installation, increase airflow and improve cooling
Two PCI express connectors for multi-GPU system configurations
Compatible with 230V AC power mains
Energy Efficiency

80PLUS® certification means operating efficiency for its class of up to 87%
High efficiency means cost savings, reduced heat wastage and overall quieter operation
Standby drain of less than 0.14 watts
Meets Energy Star 6.0 guidelines
Fulfills ErP 2014 guidelines
Zero Load design supports Intel®’s Deep Power Down C6/C7 mode
Quiet Operation

High-quality 120mm fan is thermally controlled to strike the best balance between proper cooling and quietness
Efficient PSU design produces low operating temperatures


ModelSystem Power B8 | 550W

General Data

Continuous power (W)550
Peak power (W)-
Form factor ATX 12VVersion 2.4
Form factor EPS 12VVersion 2.92
Modular cable management-
Voltage (Vac)200 - 240
Frequency (Hz)50
Input current (A)5
Power factor at 100% load>0.98
Compliant to Intel C6/C7✓
Compliant to Intel C6 mode✓
Power consumption in standby (W)0.14
Average life time (h / 25°C)100.000
Operating temperature up to (°C)40


12V rails (multi-rail operation)2
12V single rail operation-
Overclocking key-
+3.3V (A)24
+5V (A)15
+12V1 (A)26
+12V2 (A)21
+12V3 (A)-
+12V4 (A)-
+12V5 (A)-
+12V6 (A)-
-12V (A)0.3
+5Vsb (A)3
Max. combined power 12V (W)516
Max. combined power 3.3V + 5V (W)120
Hold-up time (ms @ 100%)21ms (@ 75% load)

Fan / Cooling technology

Fan typehigh-quality fan
Motor technology4-pole fan motor
Bearing technologySleeve
Fan size (mm)120
Max. fan speed (rpm), temperature-dependent2,100
Temperature control for case fans-
dB(A) at 20% load14.4
dB(A) at 50% load14.7
dB(A) at 100% load31.6


OCP (over current protection)✓
OVP (over voltage protection)✓
UVP (under voltage protection)✓
SCP (short circuit protection)✓
OTP (over temperature protection)✓
OPP (over power protection)✓

Safety certification

Nemko (N)-
Semko (S)-
Fimko (FI)-
Demko (D)-
RCM (Australia)✓
CU (Russia)✓

Eco / Efficiency

80PLUS certification230V EU internal
Efficiency (%) at 230V, 20% load85
Efficiency (%) at 230V, 50% load87
Efficiency (%) at 230V, 100% load84

Environmental directives


Cablemanagement / Connectors

Modular cable management-
Sleeved cables✓
Flat Cables-
Cable length to mainboard (cm)55
Cable length to first connector (cm)50
Maximum cable length (cm)95
All-in-one cable (SATA/PATA/FDD)-
No. of cables5
ATX-Mainboard (20+4 pin)1 (24-pin)
P8 (CPU)-
P4+4 (CPU)1
P4 (CPU)-
PCI-E 6 pin (GPU)-
PCI-E 6+2 pin (GPU)2
PATA 4 pin2
SATA 15-pin (HDD, Drives)6
FDD (Floppy)-
Mainboard Connector (PATA 4 pin)-
External fan connectors-

GPU compatibility

Multi-GPU ready✓
NVIDIA SLI readyTM certified-
AMD CrossFireX certified-


Dimensions without cable (L x W x D), (mm)140 x 150 x 86
Weight incl. fixed cables (kg)1.84
Color : black Продукт известен още и като System Power B 8 550 W BN 259, SystemPowerB8550WBN259, System Power B8 550W (BN 259)
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