be quiet! Pure Power 12 850W
Silent, great-value ATX 3.1 power supply with a native PCIe 5.1 12V-2x6 connector, 80 PLUS Gold efficiency and a quiet 120 mm rifle-bearing fan — engineered in Germany and backed by a 10-year warranty.
850W80 PLUS GoldATX 3.1 / 12V-2x6Silent 120 mm Fan
The be quiet! Pure Power 12 850W (part number BP004EU, EAN 4260052191194) is an 850-watt ATX power supply built to the latest ATX 3.1 standard (also ATX 3.0 compatible). It integrates a native PCIe Gen5.1 12V-2x6 connector for current high-end NVIDIA andAMD graphics cards, plus three PCIe 6+2-pin connectors for current-gen GPUs. With 80 PLUS Gold efficiency, one powerful +12 V rail, an LLC platform and a silence-optimised 120 mm rifle-bearing fan, it delivers quiet, reliable, great-value power for everyday gaming and workstation builds — all backed by a 10-year warranty.
Connector note: The Pure Power 12 uses the latest ATX 3.1 native PCIe Gen5.1 12V-2x6 connector — the updated, safer revision of the 16-pin standard — for current high-end graphics cards. For older GPUs, use the supplied 6+2-pin PCIe cables. Note this model has fixed (non-modular) cabling.
Who It's For
The Pure Power 12 850W suits value-focused gaming and home PCs built around a modern single graphics card. With native 12V-2x6 delivery, Gold efficiency, near-silent cooling and a 10-year warranty, it is a dependable, future-ready choice for builders who want Genuine ATX 3.1 GPU compatibility without paying for a premium modular unit.
Key Features
ATX 3.1 with native 12V-2x6
Native integration of the PCIe Gen5.1 12V-2x6 connector lets current high-end GPUs connect directly, with full ATX 3.1 power-excursion support and ATX 3.0 backward compatibility.
80 PLUS Gold efficiency
Certified 80 PLUS Gold with up to 92.7% efficiency, meaning less wasted energy, lower heat and reduced running cost.
One powerful +12V rail
A single high-amperage +12 V rail (70.9 A) delivers stable, high-load power ideal for demanding CPUs and graphics cards, with LLC technology for tight voltage regulation.
Silence-optimised 120 mm rifle-bearing fan
A specially tuned 120 mm be quiet! fan with a durable rifle bearing keeps operation exceptionally quiet across the load range — true to the be quiet! name.
Generous connectivity
Includes the 12V-2x6 GPU cable, three PCIe 6+2-pin, two CPU/EPS connectors and six SATA — ample for a typical high-end single-GPU build.
German engineering + 10-year warranty
Conceived, designed and quality-controlled in Germany and backed by a 10-year manufacturer warranty for long-term peace of mind.
Technical Specifications
| General |
| Model |
be quiet! Pure Power 12 850W (BP004EU, EAN 4260052191194) |
| Continuous Power |
850 W |
| Form Factor |
ATX 3.1 (ATX 3.0 compatible) |
| Efficiency |
80 PLUS Gold (up to 92.7%) |
| Topology |
LLC |
| Dimensions (L×W×H) |
160 × 150 × 86 mm |
| Weight |
2.52 kg |
| Housing Colour |
Black |
| Warranty |
10 years |
| Power & Input |
| +12 V Rail |
Single — 70.9 A |
| +3.3 V / +5 V |
22 A / 22 A |
| +5Vsb |
3 A |
| Cables & Connectors |
| Cable Configuration |
Non-modular (sleeved, fixed cables) |
| Motherboard |
1× 20+4-pin |
| CPU / EPS |
1× 4+4-pin + 1× 8-pin |
| PCIe 12V-2x6 |
1× (PCIe Gen5.1) |
| PCIe 6+2-pin |
3× |
| SATA |
6× |
| Cooling & Protection |
| Fan |
120 mm silence-optimised, rifle bearing (max 2000 RPM) |
| Compliance |
ATX 3.1, Active PFC, CE |
Frequently Asked Questions
Does the Pure Power 12 850W support the latest RTX graphics cards?
Yes. It is ATX 3.1 / PCIe 5.1 ready and integrates a native 12V-2x6 cable, so current high-end GeForce RTX and Radeon cards connect directly.
Is this ATX 3.0 or ATX 3.1?
It is the newer ATX 3.1 standard (and ATX 3.0 compatible) with the updated 12V-2x6 connector — the safer revision of the 16-pin 12VHPWR.
Is it modular?
No — the Pure Power 12 850W is a non-modular (fixed-cable) unit. This keeps the price down while still providing all the connectors a typical gaming build needs. For detachable cables, see the Pure Power 12 M variant.
Is it quiet?
Yes. It uses a silence-optimised 120 mm be quiet! fan with a durable rifle bearing for very low-noise operation across the load range.
What warranty does it carry?
be quiet! backs the Pure Power 12 850W with a 10-year manufacturer warranty; the unit is designed and quality-controlled in Germany.
Expert Insight
Pure Power 12 is be quiet!’s value line, and the 850W model hits a sweet spot: native ATX 3.1 12V-2x6, 80 PLUS Gold efficiency and the brand’s signature near-silent operation, at a keen price. The trade-off is fixed (non-modular) cabling, but the cable set is well judged for a single-GPU build and the single 70.9 A +12 V rail comfortably feeds a high-end card plus a fast CPU. A 10-year warranty is exceptional at this tier and signals long-term confidence. If you want detachable cables for a cleaner build, step up to the Pure Power 12 M; if you want Platinum efficiency and semi-passive cooling, look at Power Zone 2. For a quiet, reliable, future-ready supply on a budget, the Pure Power 12 850W is hard to beat.
Buyer's Guide
Best for
Value, quiet single-GPU gaming & home PCs needing native 12V-2x6 and Gold efficiency.
Consider
Non-modular fixed cabling — fine for value builds; choose Pure Power 12 M for detachable cables.
Also look at
Power Zone 2 for Platinum efficiency & semi-passive cooling, or Pure Power 13 M for modular cabling.
In stock and available from Singular with fast delivery across Cyprus. Browse the full range of power supplies for PC to compare wattages and efficiency ratings.