be quiet! PURE POWER 12 1000W PSU
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About This Item
- 1000W ATX 3.1 power supply with PCIe 5.1 compatibility
- 12cm rifle bearing fan with active cooling and on/off switch
- 80 PLUS Gold certified for 90.6% efficiency and 0.98 power factor
- Non-modular cabling with 20+4 pin ATX, 6 SATA, and 3 PCIe 6+2 pin connectors
- 10-year warranty with comprehensive surge and overload protection
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be quiet! Pure Power 12 1000W | ATX 3.1 Gold PSU
The be quiet! Pure Power 12 1000W delivers ATX 3.1 compliance and PCIe 5.1 compatibility in a non-modular design, making it ideal for high-performance UK gaming and workstation builds. With 1000W continuous output, 80 PLUS Gold efficiency, and a 10-year warranty, this PSU balances exceptional quiet operation with dependable power delivery.
| Metric | Spec |
|---|---|
| Power Output | 1000W |
| Efficiency | 80 PLUS Gold |
| Fan Size | 120mm Rifle Bearing |
| Noise Level | 31.6 dB |
| Warranty | 10 Years |
Unmatched Power Delivery for Modern Systems
This PSU provides 1000W continuous power with a single +12V rail delivering 83.4A, ensuring stable operation for multi-GPU and high-end CPU configurations. The ATX 3.1 compliance means it can handle the demanding power requirements of the latest graphics cards, while the 100,000-hour MTBF rating indicates exceptional reliability for long-term use.
Whisper-Quiet Operation with Smart Cooling
The 120mm rifle-bearing fan maintains a noise level of just 31.6 dB under typical loads, making this PSU virtually silent during everyday computing. The intelligent fan control activates cooling only when needed, reducing noise and extending component life. This makes it perfect for quiet home offices, content creation setups, and gaming rigs where acoustic comfort matters.
Comprehensive Protection and Safety
Built-in protection features include over-current, over-power, over-voltage, overheating, short-circuit, surge & inrush protection (SIP), and under-voltage safeguards. The active Power Factor Correction (PFC) with a 0.98 power factor ensures clean, efficient power delivery while reducing electrical waste. These protections shield your valuable components from power irregularities common in UK mains supplies.
Future-Proof Connectivity
With three PCIe 6+2 connectors and one PCIe 5.1 cable included, this PSU supports both current and next-generation graphics cards. The non-modular design features fixed cable lengths optimised for standard ATX cases, including 55cm motherboard power and 60cm CPU power cables. Six SATA connectors and one Molex provide ample connectivity for storage and peripherals.
Box Contents
- be quiet! Pure Power 12 1000W PSU
- AC power cable
- Cable ties
- Mounting screws
- PCIe 5.1 cable
- Three PCIe 6+2 cables
Check before you buy
- Confirm your case has sufficient space (86mm x 160mm x 150mm)
- Verify your graphics cards require PCIe 5.1 or 6+2 connectors
- Check total system power draw doesn’t exceed 1000W continuous
- Ensure your build requires non-modular cabling
Frequently Asked Questions
Q: Is this PSU compatible with PCIe 5.0 graphics cards?
A: Yes, it includes PCIe 5.1 cable plus three PCIe 6+2 cables for full compatibility with current and next-gen GPUs.
Q: What does ATX 3.1 compliance mean for this PSU?
A: ATX 3.1 ensures the PSU can handle modern GPUs’ power demands, including 200% power excursion capability during peak loads.
Q: How many storage devices can I connect?
A: The PSU provides six SATA power connectors for connecting multiple SSDs, HDDs, or other SATA devices.
Q: Is this suitable for overclocked systems?
A: Yes, the 1000W capacity and single +12V rail design provide stable power for overclocked CPUs and GPUs.
Q: What is the peak power capability?
A: This PSU can deliver up to 1050W peak power for brief periods when system demands spike.
The Consultant’s Verdict & Warranty
The be quiet! Pure Power 12 1000W represents excellent value for UK builders needing reliable, quiet power for high-performance systems. Its ATX 3.1 compliance, PCIe 5.1 support, and comprehensive protection make it suitable for gaming, content creation, and professional workstations. Covered by the standard Manufacturer Warranty.
| Weight | 3.35 kg |
|---|---|
| Power supply unit PSU form factor | ATX |
| Purpose | PC |
| ATX version | 3.1 |
| EPS version | 2.92 |
| Noise level | 31.6 dB |
| Mean time between failures MTBF | 100000 h |
| Bearing technology | Rifle |
| Product colour | Black |
| Fan diameter | 12 cm |
| On/off switch | Yes |
| Number of fans | 1 fan(s) |
| Cooling type | Active |
| Total power | 1000 W |
| Maximum input current 220V | 6 A |
| Peak power | 1050 W |
| AC input voltage | 110 – 240 V |
| AC input frequency | 50/60 Hz |
| Power factor | 0.98 |
| Power Factor Correction PFC type | Active |
| Maximum input current 110V | 12 A |
| Combined power +3.3V | 120 W |
| Combined power +5V | 120 W |
| Combined power -12V | 3.6 W |
| Combined power +5Vsb | 15 W |
| Max output current +3.3V | 22 A |
| Max output current +12V1 | 83.4 A |
| Max output current +5V | 22 A |
| Max output current -12V | 0.3 A |
| Max output current +5Vsb | 3 A |
| Power protection features | Over current, Over power, Over voltage, Overheating, Short circuit, Surge & inrush protection (SIP), Under voltage |
| Hold time | 17.82 ms |
| Efficiency | 90.6% |
| Number of +12V rails | 1 |
| Motherboard power cable length | 55 cm |
| SATA power cable length | 500,650,800,950 mm |
| Peripheral Molex power cable length | 800 mm |
| PCI Express power cable length | 60 cm |
| CPU power cable length | 60 cm |
| Motherboard power connector | 20+4 pin ATX |
| Number of SATA power connectors | 6 |
| Peripheral Molex power connectors 4-pin | 1 |
| PCI Express power connectors 6+2 pin | 3 |
| CPU power connector 4+4 pin | Yes |
| Cabling type | Non-Modular |
| PCI Express power connectors 12-pin | 1 |
| Operating temperature T-T | 0 – 40 °C |
| Storage temperature T-T | -20 – 70 °C |
| Operating relative humidity H-H | 0 – 90% |
| Storage relative humidity H-H | 0 – 95% |
| Sustainability certificates | ENERGY STAR, ErP, Triman |
| Warranty period | 10 year(s) |
| Compliance certificates | CB, CE, Federal Communications Commission (FCC), RoHS, UKCA, WEEE, cTUVus |
| Cable ties included | Yes |
| Width | 86 mm |
| Depth | 160 mm |
| Height | 150 mm |
| Weight | 2.8 kg |
| Cables included | AC |
| Package depth | 320 mm |
| Package width | 133 mm |
| Package height | 210 mm |
| Package weight | 3.2 kg |
| 80 PLUS certification | 80 PLUS Gold |
| Shipping inner case width | 24 cm |
| Shipping inner case net weight | 13.9 kg |
| Shipping inner case length | 56 cm |
| Shipping inner case height | 34 cm |
| Products per shipping inner case | 4 pc(s) |
| Screws included | Yes |
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