Tired of unstable power causing crashes and hardware stress? The be quiet! PURE POWER 12 M, 1200W, 100 - 240 V, 50/60 Hz, 15 - 7.5A, Power Supply delivers clean, reliable energy to keep your PC running smoothly, whether you’re gaming, rendering, or multitasking.
Usages of a 1200W Power Supply
A 1200W supply fits effortlessly into high-performance builds.
- Powering dual-GPU rigs for ultra-high frame rates.
- Supporting overclocked CPUs and fast RAM in workstation PCs.
- Running multiple storage drives for large media libraries.
- Supplying demanding lighting and cooling setups in custom cases.
- Ensuring stable operation for long-duration rendering farms.
Why Choose a be quiet! Power Supply
If you build or upgrade a system that pushes the limits of performance, you need a power source that won’t let you down. Many builders struggle with noisy fans, insufficient wattage, or poor efficiency that inflates electricity costs. This unit offers silent operation, 1200W of continuous output, and modern ATX 3.0 compliance, making it a perfect match for demanding rigs and future-proofing your setup.
Key Features of a 1200W Power Supply
- Efficiency: 91.5%. High efficiency reduces waste heat and lowers your power bill.
- Power factor: 0.98. Excellent power factor means better utilisation of the supplied electricity.
- MTBF: 100 000 h. Exceptional reliability translates to years of trouble-free use.
- Noise level: 34.3 dB. Quiet operation lets you focus on work or play without distraction.
- Fan speed: 0-2700 RPM. Fan only spins when needed, staying silent at low loads.
- Fully-modular cabling: Allows you to connect only the cables you need, improving airflow.
- PCIe 5.0 compatibility: Ready for the latest graphics cards with included 6+2 pin cables.
- 12 cm fan diameter: Balances airflow and noise for optimal cooling.
- Dimensions: 86 mm × 150 mm × 160 mm. Fits standard ATX cases without space issues.
Benefits of be quiet! Power Supply
You’ll enjoy a quieter workspace, saving you from constant fan noise while you concentrate. The high efficiency cuts electricity costs, and the robust protection features guard your components against surges and overloads, reducing the risk of expensive damage. Its modular design simplifies cable management, improving airflow and making future upgrades easier. Overall, this power supply delivers dependable performance that lets you focus on what matters most-your work and play.
Specifications
| Power |
| Power protection features |
Over current, Over power, Over voltage, Overheating, Short circuit, Under power, Under voltage |
| Efficiency |
91.5% |
| Hold time |
19 ms |
| Max output current (-12V) |
0.3 A |
| Max output current (+5V) |
22 A |
| Max output current (+12V2) |
50 A |
| Max output current (+12V1) |
55 A |
| Max output current (+3.3V) |
22 A |
| Combined power (+5V) |
120 W |
| Combined power (+12V) |
1200 W |
| Combined power (+3.3V) |
120 W |
| Power factor |
0.98 |
| Input current |
15 - 7.5 A |
| AC input frequency |
50/60 Hz |
| AC input voltage |
100 - 240 V |
| Peak power |
1250 W |
| Total power |
1200 W |
| Ports & interfaces |
| Cabling type |
Fully-Modular |
| PCI Express connector |
Yes |
| ATX power connector (20+4 pin) |
Yes |
| CPU power cable length |
60 cm |
| CPU power connector (4+4 pin) |
Yes |
| PCI Express power cable length |
60 cm |
| PCI Express power connectors (6+2 pin) |
4 |
| EPS power connector (8-pin) |
Yes |
| Peripheral (Molex) power cable length |
800,950 mm |
| Peripheral (Molex) power connectors (4-pin) |
0 |
| SATA power cable length |
500,650,800,950 mm |
| Number of PATA power connectors |
2 |
| Number of SATA power connectors |
6 |
| Motherboard power cable length |
55 cm |
| Motherboard power connector |
20+4 pin ATX |
| Performance |
| Mean time between failures (MTBF) |
100000 h |
| Bearing technology |
Rifle |
| Noise level |
34.3 dB |
| Silent mode |
Yes |
| EPS version |
2.92 |
| ATX version |
3.1 |
| Supported motherboard form factors |
ATX |
| 80 PLUS certification |
80 PLUS Gold |
| Power supply unit (PSU) form factor |
ATX |
| Purpose |
PC |
| Design |
| On/off switch |
Yes |
| Fan speed |
0 - 2700 RPM |
| Number of fans |
1 fan(s) |
| Fan diameter |
12 cm |
| Cooling type |
Active |
| Product colour |
Black |
| Operational conditions |
| Operating temperature (T-T) |
0 - 40 °C |
| Operating temperature (T-T) |
0 - 40 °C |
| Certificates |
| Compliance certificates |
BSMI, CB, CCC, CE, Federal Communications Commission (FCC), RoHS, cTUVus, UKCA, WEEE |
| Packaging content |
| Cable tie(s) included |
Yes |
| Cables included |
AC, CPU, PATA, PCIe, SATA |
| Weight & dimensions |
| Weight |
1.92 kg |
| Height |
86 mm |
| Depth |
160 mm |
| Width |
150 mm |
| Packaging data |
| Package type |
Box |
| Package weight |
3.19 kg |
| Package height |
100 mm |
| Package depth |
284 mm |
| Package width |
220 mm |
| Technical details |
| Sustainability compliance |
Yes |
| Sustainability certificates |
ENERGY STAR, ErP, Triman |
