Be Quiet! System Power B8 550W BN259, 80 Plus

Applications

• Office applications
• Gaming systems
• Low-budget and quiet PC builds

Feature Details

Engineering

• 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

Outstanding Service and Support

• 3-years manufacturer's warranty
• Production-optimized bulk packaging
• Quick support is available via our international hotline, Mondays to Fridays from 9:00am to 5:30pm CET:
  +49 (0) 40-736 76 86 - 98

General Data

Continuous power (W)550
Peak power (W)-
Form factor ATX 12VVersion 2.4
Form factor EPS 12VVersion 2.92
Modular cable management-
Topology-
Voltage (Vac)200 - 240
Frequency (Hz)50
Input current (A)5
PFCactive
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
Output

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
+SilentWings-
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
Protection

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

CE✓
CB✓
TÜV✓
Nemko (N)-
Semko (S)-
Fimko (FI)-
Demko (D)-
FCC-
cRUus-
cTUVus-
RCM (Australia)✓
BSMI-
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

ENERGY STAR6.0
ErP✓
WEEE✓
RoHS✓
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-
Casing

Dimensions without cable (L x W x D), (mm)140 x 150 x 86
Weight incl. fixed cables (kg)1.84
Colorblack
Accessories

Thumb screws-
Screws-
Velcro cable ties-
Cable ties-
AC power cord (mm)1.500
Box/Bag for PSU/Cables-
User manual languages -
OCK slot bracket with switch / OCK Jumper-
Service

Warranty (Years)3
Express replacement service in first year-
International hotline / free of charge✓ / DE, FR
Logistics Data, RRP

RangeSystem Power
Article numberBN259
EAN code4260052184547