Power users know that a noisy, inefficient PSU can cripple performance and raise electricity bills. The be quiet! (BN337), 850 W, 100 - 240 V, 50/60 Hz, 10/5 A, Power Supply delivers reliable, whisper-quiet power for high-end builds, keeping your system cool while saving energy.
be quiet! (BN337), 850 W, 100 - 240 V, 50/60 Hz, 10/5 A, Power Supply - the solution for stable, silent performance
When you run demanding applications or the latest graphics cards, power spikes and heat become real concerns. Unstable voltage can cause crashes, while loud fans distract you from work or gaming. This PSU tackles both issues with ATX 3.0 compliance, 80 PLUS Platinum efficiency and a Silent Wings fan that operates almost inaudibly. The result is a clean, dependable power source that lets you focus on what matters - your workload or gameplay.
Benefits
A quiet, efficient power supply improves your overall PC experience.
- Lower electricity costs thanks to 92.3 % efficiency.
- Near-silent operation lets you work or game without fan noise.
- Robust protection against over-current, over-voltage and short circuits keeps components safe.
- High power factor of 0.99 ensures stable power delivery even under heavy load.
- Long lifespan from premium Japanese 105 °C capacitors and a fluid-dynamic bearing fan.
Usages of be quiet! (BN337), 850 W, 100 - 240 V, 50/60 Hz, 10/5 A, Power Supply
This unit is ideal for high-performance gaming rigs, professional workstations and content-creation PCs that require reliable power for multiple GPUs, fast CPUs and numerous peripherals. Its fully-modular design and ample cable lengths make cable management easy in ATX, micro-ATX or Mini-ATX cases.
Key Features of be quiet! (BN337), 850 W, 100 - 240 V, 50/60 Hz, 10/5 A, Power Supply
- Power rating: 850 W. Provides enough headroom for demanding components.
- Efficiency: 92.3 %. Reduces waste heat and lowers your electricity bill.
- ATX version: 3.1. Meets the latest motherboard standards for compatibility.
- 12 V rail: 70.8 A. Supports powerful graphics cards and CPUs without strain.
- Silent Wings fan: 13.5 cm diameter, 0-2100 RPM. Delivers strong airflow while staying virtually silent.
- Modular cabling: Fully-modular, up to 100 cm cables. Simplifies installation and improves airflow.
- Protection features: Over-current, over-power, over-voltage, overheating, short-circuit, under-voltage. Safeguards all connected hardware.
- Dimensions: 86 mm × 150 mm × 160 mm, weight 1.81 kg. Fits standard ATX cases without space issues.
- Certifications: 80 PLUS Platinum, RoHS, FCC, UKCA, CE, ENERGY STAR. Confirms high efficiency and environmental compliance.
- Noise level: 22.1 dB. Keeps your workspace quiet even under load.
Specifications
| Power |
| Power protection features |
Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage |
| Efficiency |
92.3% |
| Hold time |
19.2 ms |
| Max output current (+5Vsb) |
3 A |
| Max output current (-12V) |
0.5 A |
| Max output current (+5V) |
25 A |
| Max output current (+12V1) |
70.8 A |
| Max output current (+3.3V) |
25 A |
| Combined power (+5V) |
150 W |
| Combined power (+12V) |
849.6 W |
| Combined power (+3.3V) |
150 W |
| Power factor |
0.99 |
| Input current |
10/5 A |
| AC input frequency |
50/60 Hz |
| AC input voltage |
100 - 240 V |
| Peak power |
920 W |
| Total power |
850 W |
| Ports & interfaces |
| Cabling type |
Fully-Modular |
| CPU power cable length |
70 cm |
| PCI Express power cable length |
60 cm |
| PCI Express power connectors (16-pin) |
1 |
| PCI Express power connectors (6+2 pin) |
4 |
| EPS power connector (4+4 pin) |
Yes |
| EPS power connector (8-pin) |
Yes |
| Peripheral (Molex) power cable length |
1000,850 mm |
| Peripheral (Molex) power connectors (4-pin) |
0 |
| SATA power cable length |
550,700,850,1000 mm |
| Number of PATA power connectors |
2 |
| Number of SATA power connectors |
9 |
| Motherboard power cable length |
60 cm |
| Motherboard power connector |
20+4 pin ATX |
| Performance |
| Mean time between failures (MTBF) |
100000 h |
| Bearing technology |
FDB |
| Noise level |
22.1 dB |
| EPS version |
2.92 |
| ATX version |
3.1 |
| Supported motherboard form factors |
ATX, micro ATX, Mini-ATX |
| 80 PLUS certification |
80 PLUS Platinum |
| Power supply unit (PSU) form factor |
ATX |
| Purpose |
PC |
| Design |
| On/off switch |
Yes |
| Fan speed |
0 - 2100 RPM |
| Number of fans |
1 fan(s) |
| Fan diameter |
13.5 cm |
| Cooling type |
Active |
| Product colour |
Black |
| Operational conditions |
| Operating temperature (T-T) |
0 - 40 °C |
| Operating temperature (T-T) |
0 - 40 °C |
| Certificates |
| Compliance certificates |
RoHS, Federal Communications Commission (FCC), UKCA, WEEE, CE |
| Packaging content |
| Cable tie(s) included |
Yes |
| Cables included |
CPU, SATA |
| Weight & dimensions |
| Weight |
1.81 kg |
| Height |
86 mm |
| Depth |
160 mm |
| Width |
150 mm |
| Packaging data |
| Package type |
Box |
| Package weight |
3.52 kg |
| Package height |
102 mm |
| Package depth |
328 mm |
| Package width |
248 mm |
| Technical details |
| Sustainability compliance |
Yes |
| Sustainability certificates |
Triman, ENERGY STAR, ErP |
