SYSTEM POWER B9
300W (bulk)
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 2 strong 12V-rails
- Temperature-controlled 120mm fan reduces system noise
- One PCI express connector for GPU card support
- 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
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Characteristics
OPTIMIZED FOR PROFESSIONAL SYSTEM INTEGRATORS
Cost effective and efficient handlingSystem 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 fanSystem 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 GPUSystem Power B9 300W provides stable power for the CPU and GPU. It is equipped with 2 independent 12V-rails.
COMPREHENSIVE PROTECTION
A complete range of safety featuresTop component protection with a full suite of safety functions, including OCP, OVP, OPP, OTP UVP and SCP, which provide the ultimate in secure operation.
“System Power is the entry to silent PC building, which still offers up to 80PLUS® Gold efficiency. With System Power we offer you everything you need for a reliable and cost-efficient operation.”
Christian Berndt, Product Compliance Manager
All models at a glance:
General data
| Model | System Power B9 300W (bulk) |
| Continuous power (W) | 300 |
| Peak power (W) | - |
| Form factor | Version 2.4 |
| Form factor EPS 12V | - |
| Topology | Double forward |
| Digitally controlled | - |
| Voltage (Vac) | 200 - 240 |
| Frequency (Hz) | 50 |
| Input current (A) | 2.5 |
| Power factor at 100% load | >0.95 |
| Modern standby | - |
| Power consumption in standby (W) | <0.13 |
| Average life time (h / 25°C) | 100,000 |
| Operating temperature up to (°C) | 40 |
Infographics
Efficiency
| 80 PLUS certification | Standard (230V EU internal) |
| Efficiency (%) at 230V, 2% load | - |
| Efficiency (%) at 230V, 10% load | 77.4 |
| Efficiency (%) at 230V, 20% load | 84 |
| Efficiency (%) at 230V, 50% load | 87 |
| Efficiency (%) at 230V, 100% load | 85 |
Fan and cooling technology
| Cybenetics Noise Rating | - |
| Fan | High quality fan |
| Fan size (mm) | 120 |
| Bearing technology | Sleeve |
| Motor technology | 4-pole fan motor |
| Max. fan speed (rpm) | 1650 |
| dB(A) at 10% load | 11.5 |
| dB(A) at 20% load | 11.6 |
| dB(A) at 50% load | 12.1 |
| dB(A) at 100% load | 23.1 |
Output
| Multi-rail operation (12V rails) | 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 12VHPWR (W) | - |
| Max. combined power 3.3V + 5V (W) | 103 |
| Hold-up time at 100% load (ms) | 17 (@75%) |
| Hold-up time at 80% load (ms) | - |
| Power good signal (ms) | 100 - 500 |
Cables and connectors
| Modular cables | - |
| Sleeved cables | - |
| Flat cables | - |
| Maximum cable length (cm) | 85 |
| Cable length to motherboard (cm) | 45 |
| No. of cables | 4 |
| ATX-Motherboard (20+4-pin) | 1 (24-pin) |
| P4+4 (CPU) | - |
| P8 (CPU) | - |
| P4 (CPU) | 1 |
| 12VHPWR cables | - |
| PCI-e 6+2-pin (GPU) | - |
| PCI-e 6-pin (GPU) | - |
| SATA | 4 |
| PATA | 2 |
| FDD (Floppy) | - |
Protection
| OTP (over temperature protection) | ✓ |
| OCP (over current protection) | ✓ |
| OPP (over power protection) | ✓ |
| SCP (short circuit protection) | ✓ |
| OVP (over Voltage protection) | ✓ |
| UVP (under Voltage protection) | ✓ |
| SIP (Surge & Inrush protection) | ✓ |
Safety certification
| BSMI | - |
| CB | ✓ |
| CCC | - |
| CE | ✓ |
| cRUus | - |
| cTUVus | - |
| CU | ✓ |
| FCC | - |
| RCM | ✓ |
| TÜV | ✓ |
| UKCA | - |
Environmental directives
| Energy Star | 6.1 |
| ErP | ✓ |
| WEEE | ✓ |
| RoHS | ✓ |
| Triman | - |
Scope of delivery
| Thumb screws | - |
| Screws | - |
| Cable ties | - |
| Velcro cable ties | - |
| User manual languages | - |
| OCK slot bracket with switch / OCK jumper | - |
| SFX-to-ATX adapter bracket | - |
Casing
| Dimensions without cable (L x W x H), (mm) | 140 x 150 x 86 |
| Weight (kg) | 1.52 |
| Color | - |
Service
| Warranty (Years) | 3 |
| Express replacement service in first year | - |
| International hotline / free of charge | ✓ / DE, FR |
Logistics data and RRP
| Article number | BN206 |
| EAN code | 4260052185988 |
| Dimensions, package (L x W x H), (mm) | - |
| Gross weight, package (kg) | - |
| Pieces per packaging unit | 10 |
| Dimensions, shipping box (L x W x H), (mm) | 195 x 525 x 545 |
| Gross weight, shipping box (kg) | 17.5 |
| RRP (€) | - |