essential
Article number: BN207
SYSTEM POWER B9
350W (bulk)Proven Reliability and Good Efficiency
be quiet! System Power B9 350W (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
- PCIe connector for GPU support
- Temperature-controlled 120mm fan reduces system noise
- Stand-by drain of less than 0.13 watts
- Certified 80 PLUS® efficiency (up to 87%)
- 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
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 350W 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 350W provides stable power for the CPU and GPU. It is equipped with two independent 12V-rails and one PCI express connector.
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.
All models at a glance:
General data
| Model | System Power B9 350W (bulk) |
| Continuous power (W) | 350 |
| Peak power (W) | - |
| Form factor | Version 2.4 |
| Form factor EPS 12V | - |
| Modular Cable management | - |
| Topology | Double forward |
| Wire-free design (DC-side) | - |
| Voltage (Vac) | 200 - 240 |
| Frequency (Hz) | 50 |
| Input current (A) | 3 |
| PFC | active |
| 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
Output
| 12V rails (multi-rail operation) | 2 |
| 12V single rail operation | - |
| Overclocking key | - |
| +3.3V (A) | 19 |
| +5V (A) | 15 |
| +12V1 (A) | 20 |
| +12V2 (A) | 16 |
| +12V3 (A) | - |
| +12V4 (A) | - |
| +12V5 (A) | - |
| +12V6 (A) | - |
| -12V (A) | 0.3 |
| +5Vsb (A) | 2.5 |
| Max. combined power 12V (W) | 324 |
| Max. combined power 3.3V + 5V (W) | 103 |
| Hold-up time at 100% load (ms) | 17 (@75%) |
| Power good signal | 100 - 500ms |
Fan / Cooling technology
| Fan type | High quality fan |
| +SilentWings | - |
| Motor technology | 4-pole fan motor |
| Bearing technology | Sleeve |
| Fan size (mm) | 120 |
| Max. fan speed (rpm), temperature-dependent | 1650 |
| Temperature control for case fans | - |
| dB(A) at 20% load | 12.1 |
| dB(A) at 50% load | 12.3 |
| dB(A) at 100% load | 24.9 |
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) | ✓ |
| SIP (Surge & Inrush Protection) | ✓ |
Safety certification
| CE | ✓ |
| CB | ✓ |
| TÜV | ✓ |
| FCC | - |
| cRUus | - |
| cTUVus | - |
| RCM (Australia) | ✓ |
| BSMI | - |
| CU (Russia) | ✓ |
| CCC | - |
Eco / Efficiency
| 80 PLUS certification | Standard (230V EU internal) |
| Efficiency (%) at 230V, 20% load | 84 |
| Efficiency (%) at 230V, 50% load | 87 |
| Efficiency (%) at 230V, 100% load | 84 |
Environmental directives
| Energy Star | 6.1 |
| ErP | ✓ |
| WEEE | ✓ |
| RoHs | ✓ |
Cables / Connectors
| Nvidia® SLI (RTX 3090) ready | - |
| Cable management | Fixed |
| 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 cables | 5 |
| ATX-Motherboard (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) | 1 |
| PATA | 2 |
| SATA | 4 |
| FDD (Floppy) | - |
| External fan connectors | - |
Casing
| Dimensions without cable (L x W x D), (mm) | 140 x 150 x 86 |
| Weight (kg) | 1.6 |
| 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 number | BN207 |
| EAN code | 4260052185995 |
| 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) | 18.3 |
| RRP (€) | - |