be quiet! Dark Power 14 850W PSU
£180.22 inc VAT
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About This Item
- 850 W continuous output power with 950 W peak capacity
- 80 PLUS Titanium certified for up to 93.8% efficiency
- 13.5 cm FDB bearing fan with 0-2100 RPM speed control
- Fully modular ATX 3.1 power supply with 4 +12V rails
- Comprehensive protection: OVP, OCP, OTP, OPP, SCP, SIP, UVP
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be quiet! Dark Power 14 850W | High-Performance Titanium PSU
The be quiet! Dark Power 14 850W is a premium 850W power supply unit designed for high-end PC builds demanding exceptional efficiency and silent operation. Featuring 80 PLUS Titanium certification and a fully modular design, it delivers clean, stable power while maintaining near-silent performance under typical loads.
Key Specifications
| Metric | Spec |
|---|---|
| Power Output | 850W |
| Efficiency | 93.8% (80 PLUS Titanium) |
| Fan | 135mm, FDB bearing, 0-2100 RPM |
| Form Factor | ATX |
| Noise Level | 16 dB |
Near-Silent Operation with Advanced Cooling
The Dark Power 14 850W employs a sophisticated cooling system that can operate in both active and semi-passive modes. The 135mm Fluid Dynamic Bearing (FDB) fan automatically adjusts between 0-2100 RPM based on thermal load, achieving whisper-quiet operation at just 16 dB when cooling demands are low. This makes it ideal for noise-sensitive environments like home offices or media centres.
Exceptional Efficiency and Power Delivery
With 80 PLUS Titanium certification, this PSU achieves up to 93.8% efficiency across all loads, significantly reducing wasted energy and heat generation. The 850W unit provides a combined +12V capacity of 850W across four independent rails, ensuring stable power delivery even under demanding gaming or content creation workloads. The 950W peak power capability offers headroom for brief power spikes.
Comprehensive Protection and Reliability
Built with professional-grade components, the Dark Power 14 includes extensive protection features: over current, over voltage, overheating, overload, short circuit, surge & inrush protection, and under voltage protection. With a Mean Time Between Failures (MTBF) rating of 100,000 hours and compliance with UKCA, TÜV, and FCC standards, this PSU offers exceptional long-term reliability for critical systems.
In the Box
- be quiet! Dark Power 14 850W PSU
- Modular cables
- Mounting screws
- Cable ties
- User manual (10 languages)
Things to check first
- Confirm your PC case has sufficient space (150mm x 175mm x 86mm)
- Verify your system’s total power requirements don’t exceed 850W continuous
- Check that your motherboard uses a 20+4 pin ATX connector
- Ensure your GPU requires no more than four 6+2 pin PCIe connectors
Frequently Asked Questions
Is this PSU compatible with ATX 3.0 motherboards?
Can the fan be completely turned off?
How many PCIe connectors does it include?
What warranty coverage does it have?
Is the power supply fully modular?
Why we rate it
The be quiet! Dark Power 14 850W represents an excellent choice for enthusiasts and professionals building high-performance systems where silence and efficiency are priorities. Its Titanium efficiency rating, comprehensive protection features, and near-silent operation make it particularly suitable for gaming rigs, workstations, and HTPCs. Covered by the applicable manufacturer warranty, this PSU delivers the reliability and performance expected from a premium German-engineered component.
| Purpose | PC |
|---|---|
| ATX version | 3.1 |
| EPS version | 2.92 |
| Noise level | 16 dB |
| Mean time between failures MTBF | 100000 h |
| Bearing technology | FDB |
| 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 |
| On/off fan switch | Yes |
| Total power | 850 W |
| Maximum input current 220V | 5 A |
| Peak power | 950 W |
| AC input voltage | 100 – 240 V |
| AC input frequency | 50/60 Hz |
| Power factor | 0.98 |
| Maximum input current 110V | 10 A |
| Combined power +3.3V | 120 W |
| Combined power +12V | 850 W |
| Combined power +5V | 120 W |
| Max output current +3.3V | 24 A |
| Max output current +12V1 | 30 A |
| Max output current +12V2 | 30 A |
| Max output current +12V4 | 35 A |
| Max output current +12V3 | 35 A |
| Max output current +5V | 24 A |
| Max output current -12V | 0.5 A |
| Max output current +5Vsb | 3 A |
| Power protection features | Over current, Over voltage, Overheating, Overload, Short circuit, Surge & inrush protection (SIP), Under voltage |
| Hold time | 20.7 ms |
| Efficiency | 93.8% |
| Number of +12V rails | 4 |
| Motherboard power cable length | 60 cm |
| SATA power cable length | 600,750,900,1050 mm |
| Peripheral Molex power cable length | 900,1050 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 | 13 |
| Peripheral Molex power connectors 4-pin | 2 |
| EPS power connector 8-pin | Yes |
| PCI Express power connectors 6+2 pin | 4 |
| CPU power connector 4+4 pin | Yes |
| PCI Express connector | Yes |
| ATX power connector 20+4 pin | Yes |
| Cabling type | Fully-Modular |
| EPS power connector 4+4 pin | Yes |
| PCI Express power connectors 12-pin | 1 |
| Number of SATA power cables | 4 |
| Operating temperature T-T | 0 – 40 °C |
| Sustainability certificates | ENERGY STAR, ErP, Triman |
| Compliance certificates | CB, Federal Communications Commission (FCC), RoHS, TÜV mark, UKCA, WEEE, cTUVus |
| Width | 150 mm |
| Depth | 175 mm |
| Height | 86 mm |
| Weight | 2.2 kg |
| Package depth | 126 mm |
| Package width | 230 mm |
| Package height | 355 mm |
| Package weight | 3.5 kg |
| Manual languages | Simplified Chinese, German, English, Spanish, French, Italian, Japanese, Polish, Russian, Thai, Ukrainian |
| Shipping inner case width | 36.8 cm |
| Shipping inner case net weight | 19.3 kg |
| Shipping inner case length | 52.8 cm |
| Shipping inner case height | 26 cm |
| Products per shipping inner case | 4 pc(s) |
| Screws included | Yes |
| Cable ties included | Yes |
| Manual | Yes |
| Distributor SKUs | CLBP019EU |
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