be quiet! BN337 850W Power Supply
£152.52 inc VAT
In stock
In stock
More Ways to Pay
-
Buy now, pay later with Klarna at checkout
-
Pay in 3 interest-free payments with PayPal at checkout
About This Item
- 850W ATX 3.1 power supply with 80 PLUS Platinum efficiency
- Active cooling with 13.5 cm fan, 0-2100 RPM, FDB bearing
- Fully-modular cables for clean builds and improved airflow
- Supports ATX, micro ATX, and Mini-ATX motherboards
- Comprehensive protection: over current, power, voltage, overheating, short circuit, under voltage
Payment Methods:
You may also like
DeepCool PF700 700W ATX Power Supply
In stock
be quiet! BN337 | 850W ATX 3.1 Platinum PSU
The be quiet! BN337 delivers 850W of continuous power with 80 PLUS Platinum efficiency, making it a reliable choice for high-performance gaming and workstation PCs. Designed for ATX 3.1 compatibility, it supports next-gen GPUs and processors with stable, clean power delivery.
Key Specs
| Metric | Spec |
|---|---|
| Power Output | 850W |
| Efficiency | 80 PLUS Platinum |
| ATX Version | 3.1 |
| Cooling | 135mm Silent Wings fan |
| Warranty | 10 years |
Future-Proof ATX 3.1 Design
Built to the latest ATX 3.1 standard, the BN337 ensures full compatibility with next-generation components. It features native 12V-2×6 connectors for PCIe 5.1 graphics cards while retaining four 6+2-pin PCIe connectors for current GPUs. This versatility makes it ideal for both today’s high-end systems and tomorrow’s upgrades.
Near-Silent Operation
The 135mm Silent Wings fan with fluid-dynamic bearing delivers exceptional airflow while maintaining virtually inaudible operation. With a noise level of just 22.1 dB and fan speeds ranging from 0-2100 RPM, it provides efficient cooling without the distraction of fan noise during light loads.
Premium Component Quality
Japanese 105°C capacitors throughout ensure long-term stability and reliability. The full-bridge LLC topology delivers clean, stable power with minimal ripple noise, while comprehensive protection features guard against over-current, over-voltage, short circuits, and overheating.
Modular Cable Management
Fully modular cabling eliminates clutter and improves airflow within your case. With cables up to 100cm in length, installation is straightforward even in larger chassis. The included cable ties help maintain a tidy build.
In the Box
- be quiet! BN337 power supply unit
- CPU power cable
- SATA power cables
- Modular cables
- Cable ties
- User manual
Things to check first
- Confirm your case has sufficient space (150 x 160 x 86 mm)
- Verify your GPU requires no more than 850W total system power
- Check you need the included cable types for your components
- Ensure your motherboard uses standard ATX, micro-ATX, or Mini-ATX form factors
Frequently Asked Questions
Is this PSU compatible with PCIe 5.0 graphics cards?
What efficiency rating does the BN337 achieve?
How many SATA devices can I connect?
What’s the warranty period?
Is the fan always running?
Summary & warranty
The be quiet! BN337 represents excellent value for users building high-performance systems who prioritise quiet operation and future compatibility. Its ATX 3.1 compliance, premium components, and 10-year warranty make it a sound long-term investment. Covered by the applicable manufacturer warranty.
| Purpose | PC |
|---|---|
| ATX version | 3.1 |
| EPS version | 2.92 |
| Noise level | 22.1 dB |
| Mean time between failures MTBF | 100000 h |
| Bearing technology | FDB |
| Supported motherboard form factors | ATX, micro ATX, Mini-ATX |
| Product colour | Black |
| Fan diameter | 13.5 cm |
| On/off switch | Yes |
| Number of fans | 1 fan(s) |
| Fan speed | 0 – 2100 RPM |
| Cooling type | Active |
| Total power | 850 W |
| Peak power | 920 W |
| AC input voltage | 100 – 240 V |
| AC input frequency | 50/60 Hz |
| Input current | 10/5 A |
| Power factor | 0.99 |
| Combined power +3.3V | 150 W |
| Combined power +12V | 849.6 W |
| Combined power +5V | 150 W |
| Max output current +3.3V | 25 A |
| Max output current +12V1 | 70.8 A |
| Max output current +5V | 25 A |
| Max output current -12V | 0.5 A |
| Max output current +5Vsb | 3 A |
| Power protection features | Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage |
| Hold time | 19.2 ms |
| Efficiency | 92.3% |
| Motherboard power cable length | 60 cm |
| SATA power cable length | 550,700,850,1000 mm |
| Peripheral Molex power cable length | 1000,850 mm |
| PCI Express power cable length | 60 cm |
| CPU power cable length | 70 cm |
| Motherboard power connector | 20+4 pin ATX |
| Number of SATA power connectors | 9 |
| Number of PATA power connectors | 2 |
| EPS power connector 8-pin | Yes |
| PCI Express power connectors 6+2 pin | 4 |
| Cabling type | Fully-Modular |
| EPS power connector 4+4 pin | Yes |
| PCI Express power connectors 16-pin | 1 |
| Operating temperature T-T | 0 – 40 °C |
| Sustainability compliance | Yes |
| Sustainability certificates | Triman, ENERGY STAR, ErP |
| Compliance certificates | RoHS, Federal Communications Commission (FCC), UKCA, WEEE, CE |
| Cable ties included | Yes |
| Width | 150 mm |
| Depth | 160 mm |
| Height | 86 mm |
| Weight | 1.81 kg |
| Cables included | CPU, SATA |
| Package depth | 328 mm |
| Package width | 248 mm |
| Package height | 102 mm |
| Package type | Box |
| Package weight | 3.52 kg |
| Shipping inner case width | 28.2 cm |
| Shipping inner case net weight | 22.7 kg |
| Shipping inner case length | 65.1 cm |
| Shipping inner case height | 34.6 cm |
| Products per shipping inner case | 6 pc(s) |
| Warranty period | 10 year(s) |
| Distributor SKUs | 565497, STD10220337, CLBN337 |
Reviews
Clear filtersThere are no reviews yet.