be quiet! POWER ZONE 2 850W power supply unit 20+4 pin ATX ATX Black
be quiet! POWER ZONE 2 850W, 850 W, 100 - 240 V, 920 W, 50/60 Hz, 10 A, 5 A
| Date | Price |
|---|---|
| 13 April 2026 | £116.85 |
| 21 April 2026 | £114.92 |
| 28 April 2026 | £116.85 |
| 1 May 2026 | £113.49 |
| 30 May 2026 | £118.94 |
| 30 May 2026 | £118.94 |
| 2 June 2026 | £115.72 |
| 7 June 2026 | £119.94 |
| 7 June 2026 | £119.99 |
| 15 June 2026 | £119.98 |
| 16 June 2026 | £119.98 |
| 24 June 2026 | £117.94 |
| 25 June 2026 | £118.94 |
| 2 July 2026 | £110.18 |
| 4 July 2026 | £110.18 |
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Product Information
Exceptional efficiency for Gamers
Power Zone 2 850W is a power supply with 80 PLUS® Platinum certification and semi-passive zero-RPM cooling for both efficient and quiet gaming sessions.
PLATINUM CERTIFIED
Highly efficient operation
Power Zone 2 850W is certified with 80 PLUS Platinum and Cybenetics Platinum, resulting in an energy efficiency rating of up to 94.1%. This results in lower power consumption, overall cooler and quieter operation, and many other benefits for your high-end system.
SEMI-PASSIVE ZERO-RPM COOLING
Enjoy the silence
A large Pure Wings 3 140mm fan is keeping Power Zone 2 850W cool. While under low load, the fan turns off completely until its services are needed again for more demanding operations. This post-ventilation requires a short cooldown period of 2-5 minutes to avoid frequent and annoying starts and stops of the fan. Combined with the large fan for active cooling, this power supply is exceptionally silent in all load scenarios.
PURE WINGS 3 FAN
Specially designed for Power Zone 2
No Power Supply is like the other. Hence, we have altered aspects of our renowned Pure Wings 3 140mm fan to make it the perfect match for Power Zone 2 850W. The fan offers outstanding reliability and makes for a long-lasting companion. Due to its large diameter, the fan cools the interior of the PSU efficiently and quietly.
FUTURE-PROOF YOUR SYSTEM
With 90° angled 12V-2x6 connector in scope of delivery
Power Zone 2 850W is an ATX 3.1 PSU and comes with both native integration of the 12V-2x6 connector for next-generation PCIe 5.1 graphics cards, and 3 PCIe 6+2-pin connectors for support of current-gen GPUs. A 90° angled 12V-2x6 connector in the scope of delivery leaves no doubt that this PSU is here to stay. All of this makes Power Zone 2 850W extremely versatile and the perfect choice for powerful systems of today and the ones to come.
THE NEW STANDARD OF POWER
For massive transient loads
Power Zone 2 offers 850W of continuous power with one massive 12V rail. Even if the graphics card demands excessive power for a short time: Power Zone 2 850W handles power excursions up to double its rated power with ease. This ensures reliable operation with the next generation of processors and graphics cards.
HIGH-CLASS TECHNOLOGIES
All packed in a stunning design
With its LLC topology, the Power Zone 2 850W offers best-in-class voltage regulation and efficiency. This makes it perfect for building very quiet systems or upgrading gaming and media creation PCs. The inner values are what everyone cares about most in a power supply but looks cannot be completely ignored. That is why the Power Zone 2 850W has a distinctive look with a newly designed mesh front. In addition, all cable designations are printed directly on the PSU’s case for a long-lasting impression and an unparalleled look and feel.
Product
- Name
- be quiet! POWER ZONE 2 850W power supply unit 20+4 pin ATX ATX Black
- Category
- Power Supply Units
- Brand
- be quiet!
Power
- Total power
- 850 W
- AC input voltage
- 100 - 240 V
- Peak power
- 920 W
- AC input frequency
- 50/60 Hz
- Maximum input current (@110V)
- 10 A
- Maximum input current (@220V)
- 5 A
- Power factor
- 0.98
- Number of +12V rail(s)
- 1
- Combined power (+3.3V)
- 120 W
- Combined power (+12V)
- 849.6 W
- Combined power (+5V)
- 120 W
- Combined power (-12V)
- 6 W
- Combined power (+5Vsb)
- 15 W
- Max output current (+3.3V)
- 20 A
- Max output current (+12V)
- 70.8 A
- Max output current (+5V)
- 20 A
- Max output current (-12V)
- 0.5 A
- Max output current (+5Vsb)
- 3 A
- Hold time
- 21.1 ms
- Efficiency
- 92.3%
- Power protection features
- Over current, Over power, Over voltage, Overheating, Short circuit, Surge & inrush, Under voltage
Operational conditions
- Operating temperature (T-T)
- 0 - 40 °C
- Storage temperature (T-T)
- -40 - 70 °C
- Operating relative humidity (H-H)
- 0 - 85%
- Storage relative humidity (H-H)
- 0 - 95%
Weight & dimensions
- Width
- 150 mm
- Depth
- 160 mm
- Height
- 86 mm
Ports & interfaces
- Motherboard power connector
- 20+4 pin ATX
- Peripheral (Molex) power connectors (4-pin)
- 1
- Motherboard power cable length
- 60 cm
- Number of SATA power connectors
- 7
- SATA power cable length
- 550,700,850,1000 mm
- Peripheral (Molex) power cable length
- 1000 mm
- EPS power connector (8-pin)
- Yes
- PCI Express power connectors (6+2 pin)
- 3
- PCI Express power connectors (16-pin)
- 1
- PCI Express power cable length
- 60 cm
- CPU P4 connector (4-pin)
- 1
- CPU power connector (4+4 pin)
- Yes
- CPU power cable length
- 70 cm
- Cabling type
- Fully-Modular
Packaging data
- Manual
- Yes
- Manual languages
- German, English, Spanish, French, Polish, Russian, Ukrainian
- Package width
- 248 mm
- Package depth
- 328 mm
- Package height
- 102 mm
- Package weight
- 3.21 kg
- Package type
- Box
Other features
- Screws included
- Yes
- Cable ties included
- Yes
Performance
- Purpose
- PC
- Power supply unit (PSU) form factor
- ATX
- 80 PLUS certification
- 80 PLUS Platinum
- ATX version
- 3.1
- EPS version
- 2.92
- Noise level
- 24.9 dB
- Bearing technology
- Rifle
- Mean time between failures (MTBF)
- 100000 h
Design
- Product colour
- Black
- Cooling type
- Active
- Fan diameter
- 14 cm
- Number of fans
- 1 fan(s)
- On/off switch
- Yes
Logistics data
- Shipping (inner) case length
- 65.1 cm
- Shipping (inner) case width
- 28.2 cm
- Shipping (inner) case height
- 34.6 cm
- Products per shipping (inner) case
- 6 pc(s)
- Shipping (inner) case gross weight
- 19.3 kg
Technical details
- Sustainability certificates
- ENERGY STAR, ErP, Triman
Certificates
- Waste Electrical and Electronic Equipment (WEEE) compliance
- Yes
- Compliance certificates
- BSMI, CB, CCC, CE, Federal Communications Commission (FCC), RCM, RoHS, TÜV mark, UKCA, WEEE
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