be quiet! DARK POWER 14 850W PSU
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About This Item
- 850 W ATX 3.1 power supply with 80 PLUS Titanium certification
- Active cooling with 13.5 cm fan and FDB bearing technology
- Four +12V rails delivering 850 W total output power
- Fully modular cabling for clean build and easy installation
- Comprehensive protection: over current, over voltage, overheating, overload, short circuit, surge & inrush protection
- MTBF of 100,000 hours with 93.8% efficiency
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be quiet! Dark Power 14 850W | High-Performance Titanium PSU
The be quiet! Dark Power 14 850W power supply unit delivers uncompromising silence and performance for demanding PC builds. This 850W powerhouse features a high-performance heat sink design with an integrated fan and can operate in either active or semi-passive mode, making it ideal for enthusiasts who require both reliability and near-silent operation.
Key Specifications
| Metric | Spec |
|---|---|
| Power Output | 850W |
| Efficiency | 93.8% (80 PLUS Titanium) |
| Fan Type | 135mm FDB, 0-2100 RPM |
| Noise Level | 16 dB |
| Cabling | Fully-Modular |
Ultimate Efficiency with 80 PLUS Titanium Certification
The Dark Power 14 achieves an impressive 93.8% efficiency rating through its 80 PLUS Titanium certification, meaning less energy is wasted as heat during power conversion. This high efficiency translates directly to lower electricity bills and reduced thermal output, which is particularly beneficial for systems running 24/7 or in environments where heat management is critical. The power factor of 0.98 ensures optimal power delivery to your components.
Advanced Cooling for Silent Operation
Equipped with a 135mm Fluid Dynamic Bearing (FDB) fan, this PSU delivers exceptional cooling while maintaining whisper-quiet operation at just 16 dB. The fan speed ranges from 0 to 2100 RPM and can switch between active and semi-passive modes depending on system load. This intelligent cooling system ensures your components stay at optimal temperatures during intensive tasks while remaining virtually silent during light usage or idle periods.
Comprehensive Protection and Reliability
Built with professional-grade protection features, the Dark Power 14 safeguards your valuable components against electrical anomalies. The unit includes over current, over voltage, overheating, overload, short circuit, surge & inrush protection (SIP), and under voltage protection. With a Mean Time Between Failures (MTBF) of 100,000 hours, this PSU is engineered for long-term reliability in even the most demanding environments.
Flexible Power Delivery for Modern Systems
The Dark Power 14 features four +12V rails with maximum outputs of 30A, 30A, 35A, and 35A respectively, providing balanced power distribution across your system. The ATX 3.1 and EPS 2.92 compatibility ensures full support for the latest Intel and AMD platforms, including high-end processors and graphics cards. The 20+4 pin ATX and 4+4 pin CPU connectors deliver stable power to your motherboard and processor.
Box Contents
- be quiet! Dark Power 14 850W PSU
- Fully modular cables
- Mounting screws
- Cable ties
- User manual (multiple languages)
Check before you buy
- Confirm your case has sufficient space (150mm x 175mm x 86mm)
- Verify your system’s total power requirements don’t exceed 850W
- Check that your motherboard uses standard 20+4 pin ATX connector
- Confirm you need fully-modular cabling for your build
Frequently Asked Questions
Q: Is this PSU compatible with ATX 3.0 and PCIe 5.0 graphics cards?
A: Yes, the Dark Power 14 supports ATX 3.1 specification with PCIe 5.0 readiness.
Q: Can the fan be completely turned off during low loads?
A: Yes, the semi-passive mode allows the fan to stop completely during light usage.
Q: How many SATA devices can I connect to this PSU?
A: The unit provides 13 SATA power connectors across four cables.
Q: What is the hold-up time for this power supply?
A: The hold time is 20.7 milliseconds, providing adequate power during brief interruptions.
Q: Does this PSU include all necessary cables for a typical gaming PC?
A: Yes, it includes motherboard, CPU, PCIe, SATA, and peripheral power cables.
The Consultant’s Verdict & Warranty
The be quiet! Dark Power 14 850W represents the pinnacle of silent, efficient power delivery for high-performance PC builds. Its 80 PLUS Titanium certification, advanced cooling system, and comprehensive protection features make it an excellent choice for gaming rigs, content creation workstations, and professional systems where reliability and low noise are paramount. Covered by the standard Manufacturer Warranty.
| Cooling | |
|---|---|
| Fan diameter | 13.5 cm |
| Number of fans | 1 fan(s) |
| Fan speed | 0 - 2100 RPM |
| Cooling type | Active |
| Performance | |
| On/off switch | Yes |
| Power supply unit (PSU) form factor | ATX |
| 80 PLUS certification | 80 PLUS Titanium |
| Purpose | PC |
| ATX version | 3.1 |
| EPS version | 2.92 |
| Noise level | 16 dB |
| Mean time between failures (MTBF) | 100000 h |
| Bearing technology | FDB |
| Design | |
| 80 PLUS certification | 80 PLUS Titanium |
| 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 |
| Power | |
| 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 rail(s) | 4 |
| Ports & interfaces | |
| 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 |
| Operational conditions | |
| Operating temperature (T-T) | 0 - 40 °C |
| Technical details | |
| 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) |
| Sustainability certificates | ENERGY STAR, ErP, Triman |
| Compliance certificates | CB, Federal Communications Commission (FCC), RoHS, TÜV mark, UKCA, WEEE, cTUVus |
| Certificates | |
| Waste Electrical and Electronic Equipment (WEEE) compliance | Yes |
| Compliance certificates | CB, Federal Communications Commission (FCC), RoHS, TÜV mark, UKCA, WEEE, cTUVus |
| 80 PLUS certification | 80 PLUS Titanium |
| Certification | |
| Waste Electrical and Electronic Equipment (WEEE) compliance | Yes |
| Weight & dimensions | |
| Width | 150 mm |
| Depth | 175 mm |
| Height | 86 mm |
| Weight | 2.2 kg |
| Packaging data | |
| Screws included | Yes |
| Cable ties included | Yes |
| Package depth | 355 mm |
| Package width | 230 mm |
| Package height | 126 mm |
| Package weight | 3.5 kg |
| Manual | Yes |
| Manual languages | Simplified Chinese, German, English, Spanish, French, Italian, Japanese, Polish, Russian, Thai, Ukrainian |
| Packaging content | |
| Screws included | Yes |
| Cable ties included | Yes |
| Manual | Yes |
| Logistics data | |
| 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) |
| Other features | |
| Screws included | Yes |
| Cable ties included | Yes |
| Manual | Yes |

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