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Article number: BN206

SYSTEM POWER B9

300W (bulk)

Proven Reliability and Good Efficiency

be quiet! System Power B9 300W (bulk) is specially designed to suit the needs of price-conscious PC builders.

  • Production-optimized bulk packaging
  • Rock-solid stability with two strong 12V-rails
  • Temperature-controlled 120mm fan reduces system noise
  • Stand-by drain of less than 0.13 watts
  • 80 PLUS® Bronze efficiency (up to 89%) 
  • Complete suite of top safety features
  • Meets latest Intel® C6/C7, ErP and Energy Star 6.1 guidelines
  • 3-year manufacturer’s warranty
  • Product conception, design and quality control in Germany

OPTIMIZED FOR PROFESSIONAL SYSTEM INTEGRATORS

Cost effective and efficient handling

System Power B9 was designed to meet the needs of system integrators. The PSU is very cost-efficient and comes in production-optimized bulk packaging. This ensures quick and easy handling to streamline the production of pre-configured PCs.

VERY QUIET OPERATION

Achieved by high-quality fan

System Power B9 300W is equipped with a temperature-controlled 120mm fan. This ensures its operation produces the low noise that be quiet! is famous for.

HIGH PERFORMANCE FOR YOUR SYSTEM

Proven reliability for CPU and GPU

System Power B9 300W provides stable power for the CPU and GPU. It is equipped with two independent 12V-rails.

COMPREHENSIVE PROTECTION

A complete range of safety features

Top component protection with a full suite of safety functions, including OCP, OVP, OPP, OTP UVP and SCP, which provide the ultimate in secure operation.

All models at a glance:

Features

General data

ModelSystem Power 9 300W bulk
Continuous power (W)300
Peak power (W)-
Form factor ATX 12VVersion 2.4
Form factor EPS 12V-
Modular Cable management-
TopologyDouble forward
Wire-free design (DC-side)-
Voltage (Vac)200 - 240
Frequency (Hz)50
Input current (A)2.5
PFCactive
Power factor at 100% load>0.95
Compliant to Intel C6/C7
Power consumption in standby (W)<0.13
Average life time (h / 25°C)100,000
Operating temperature up to (°C)40

Infographics

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Output

12V rails (multi-rail operation)2
12V single rail operation-
Overclocking key-
+3.3V (A)17
+5V (A)15
+12V1 (A)18
+12V2 (A)14
+12V3 (A)-
+12V4 (A)-
+12V5 (A)-
+12V6 (A)-
-12V (A)0.3
+5Vsb (A)2.5
Max. combined power 12V (W)276
Max. combined power 3.3V + 5V (W)103
Hold-up time (ms @ 100%)17 @ 75% load
Power good signal100 - 500ms

Fan / Cooling technology

Fan typehigh-quality fan
+SilentWings-
Motor technology4-pole fan motor
Bearing technologySleeve
Fan size (mm)120
Max. fan speed (rpm), temperature-dependent1650
Temperature control for case fans-
dB(A) at 20% load11.6
dB(A) at 50% load12.1
dB(A) at 100% load23.1

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)
CCC-

Eco / Efficiency

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

Environmental directives

Energy Star6.1
ErP
WEEE
RoHs

Cable management / Connectors

Multi-GPU ready-
Modular Cable management-
Fully modular-
Sleeved cables-
Flat cables-
Cable length to mainboard (cm)45
Cable length to first connector (cm)40
Maximum cable length (cm)85
All-in-one cable (SATA/PATA/FDD)-
No. of cables4
ATX-Motherboard (20+4-pin)1x 24
P8 (CPU)-
P4+4 (CPU)-
P4 (CPU)1
PCI-e 6-pin (GPU)-
PCI-e 6+2-pin (GPU)-
PATA 4-pin2
SATA 15-pin (HDD, Drives)4
FDD (Floppy)-
External fan connectors-

Casing

Dimensions without cable (L x W x D), (mm)86 x 150 x 140
Weight (kg)1.52
Color-

Accessories

Thumb screws-
Screws-
Cable ties-
Velcro cable ties-
Box/Bag for PSU/Cables-
User manual languages-
OCK slot bracket with switch / OCK jumper-
SFX-to-ATX adapter bracket-

Service

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

Logistics data, RRP

Article numberBN206
EAN code4260052185988
Dimensions, package (L x W x H), (mm)-
Gross weight, package (kg)-
Pieces per packaging unit10
Dimensions, shipping box (L x W x H), (mm)195 x 525 x 545
Gross weight, shipping box (kg)17.5
RRP (€)-

System Power B9 | 300W (bulk)
Article number: BN206

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