be quiet! Pure Power 12 M 1200W (BN346) - ATX 3.1 80+ Gold Fully Modular PSU (Boxed)
1200W fully modular ATX 3.1 PSU, 80+ Gold (93.7% eff.), 12VHPWR + 4x PCIe 6+2, silent 120mm fan, LLC topology. Ideal for PCIe 5.1 GPUs & high-end PCs.
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Discontinued
This item was discontinued and currently is not available for order on our website. The item may become available soon. Please contact us if you need more information regarding the upcoming arrivals.
| PSU (Power Supplies) - Wattage | 1200 - 1499 W |
|---|---|
| PSU (Power Supplies) - Efficiency Rating | 80 Plus Gold |
| PSU (Power Supplies) - Color | Black |
| PSU (Power Supplies) - Modularity | Fully modular |
| PSU (Power Supplies) - PCIe GPU Connectors | 1x 12VHPWR 16-pin 4x 8/6 pins |
| PSU (Power Supplies) - Length | 141-160 mm |
| PSU (Power Supplies) - EPS CPU Connectors | 2x 4+4pin EPS/ATX12V |
The be quiet! Pure Power 12 M 1200W (BN346) is a premium fully modular ATX 3.1 power supply certified 80 PLUS Gold with up to 93.7% efficiency. It features a native 12VHPWR (PCIe 5.1) connector for next-gen GPUs and 4x PCIe 6+2 pin connectors for current graphics cards, supporting massive power excursions up to 2x rated power.
Equipped with a silence-optimized 120mm rifle bearing fan (0-2700 RPM), LLC resonant topology for rock-solid voltage regulation, and comprehensive protections (OCP/OVP/OPP/OTP/SCP/UVP). Perfect for quiet gaming PCs, workstations, and high-end systems with excellent build quality and 10-year warranty.
- ✅ ATX 3.1 & PCIe 5.1 ready with 12VHPWR 600W cable
- ✅ 80 PLUS Gold efficiency (91.5-93.7%)
- ✅ Fully modular for optimal cable management
- ✅ 6x SATA, 2x PATA, low noise 34.3dB max
- ✅ 1200W continuous / 1250W peak on +12V rails
| Total power | 1200 W |
| Peak power | 1250 W |
| AC input voltage | 100 - 240 V |
| AC input frequency | 50/60 Hz |
| Input current | 12 - 6 A |
| Power factor | 0.98 |
| Combined power (+3.3V) | 120 W |
| Combined power (+12V) | 1200 W |
| Combined power (+5V) | 120 W |
| Max output current (+3.3V) | 22 A |
| Max output current (+12V1) | 55 A |
| Max output current (+12V2) | 50 A |
| Max output current (+5V) | 22 A |
| Max output current (-12V) | 0.3 A |
| Hold time | 19 ms |
| Efficiency | 93.7% |
| Power protection features | Over current, Over power, Over voltage, Overheating, Short circuit, Under power, Under voltage |
| Motherboard power connector | 20+4 pin ATX |
| Motherboard power cable length | 55 cm |
| Number of SATA power connectors | 6 |
| Number of PATA power connectors | 2 |
| SATA power cable length | 500,650,800,950 mm |
| Peripheral (Molex) power cable length | 800,950 mm |
| PCI Express power connectors (6+2 pin) | 4 |
| PCIe 12VHPWR connectors | 1x 12VHPWR (600W) |
| PCI Express power cable length | 60 cm |
| CPU power cable length | 60 cm |
| Cabling type | Fully-Modular |
| 80 PLUS certification | 80 PLUS Gold |
| Supported motherboard form factors | ATX |
| Purpose | PC |
| Power supply unit (PSU) form factor | ATX |
| ATX version | 3.1 |
| EPS version | 2.92 |
| Noise level | 34.3 dB |
| Bearing technology | Rifle |
| Mean time between failures (MTBF) | 100000 h |
| Product colour | Black |
| Cooling type | Active |
| Fan diameter | 12 cm |
| Number of fans | 1 fan(s) |
| Fan speed | 0 - 2700 RPM |
| Operating temperature (T-T) | 0 - 40 °C |
| Cables included | AC, CPU, PATA, PCIe, SATA |
| Compliance certificates | BSMI, CB, CCC, CE, FCC, RoHS, cTUVus, UKCA, WEEE |
| Width | 150 mm |
| Depth | 160 mm |
| Height | 86 mm |
| Weight | 1.92 kg |
| Package width | 220 mm |
| Package depth | 284 mm |
| Package height | 100 mm |
| Package weight | 3.19 kg |
| Package type | Box |
| Sustainability certificates | ENERGY STAR, ErP, Triman |