Key Specifications
Choose one or multiple features to search for items that have the same specifications.| Technical details | |
| Sustainability certificates | ENERGY STAR, ErP |
| Ports & interfaces | |
| PCI Express connector | ![]() |
| Motherboard power connector | 20+4 pin ATX |
| Number of SATA power connectors | 5 |
| Peripheral (Molex) power connectors (4-pin) | 1 |
| EPS power connector (8-pin) | ![]() |
| ATX power connector (20+4 pin) | ![]() |
| PCI Express power connectors (8-pin) | 2 |
| CPU power connector (4+4 pin) | ![]() |
| CPU P4 connector (4-pin) | 1 |
| PCI Express power connectors (6+2 pin) | 1 |
| Cabling type | Non-Modular |
| SATA power cable length | 450 mm |
| CPU power cable length | 55 cm |
| PCI Express power cable length | 55 cm |
| PCI Express power connectors (12-pin) | 1 |
| Weight & dimensions | |
| Weight | 1.92 kg |
| Height | 86 mm |
| Width | 140 mm |
| Depth | 150 mm |
| Energy management | |
| Input current | 4 A |
| Nominal power | 550 W |
| Efficiency | 89.7% |
| Hold time | 16.86 ms |
| Power protection features | Over current, Over power, Over voltage, Overheating, Short circuit, Surge & inrush, Under voltage |
| Power factor | 0.98 |
| Power Factor Correction (PFC) type | Active |
| Combined power (+3.3V) | 120 W |
| Combined power (+12V) | 550 W |
| Combined power (+5V) | 120 W |
| Combined power (-12V) | 3.6 W |
| Combined power (+5Vsb) | 15 W |
| Max output current (+3.3V) | 20 A |
| Max output current (+5V) | 20 A |
| Max output current (-12V) | 0.3 A |
| Max output current (+5Vsb) | 3 A |
| AC input frequency | 50 Hz |
| AC input voltage | 200 - 240 V |
| Max output current (+12V1) | 45.83 A |
| Total power | 550 W |
| Number of +12V rail(s) | 1 |
| Packaging data | |
| Package weight | 2.3 kg |
| Package depth | 268 mm |
| Package height | 97 mm |
| Package width | 195 mm |
| Package type | Box |
| Certificates | |
| RoHS compliance | ![]() |
| 80 PLUS certification | 80 PLUS Bronze |
| Waste Electrical and Electronic Equipment (WEEE) compliance | ![]() |
| Compliance certificates | CB, CE, RoHS, TÜV mark, UKCA, WEEE |
| Other features | |
| Screws included | ![]() |
| Cable ties included | ![]() |
| Design | |
| Product colour | Black |
| Illumination | ![]() |
| Number of fans | 1 fan(s) |
| On/off switch | ![]() |
| Cooling type | Active |
| Fan diameter | 120 mm |
| Fan speed | 1800 RPM |
| Performance | |
| Mean time between failures (MTBF) | 100000 h |
| Form factor | ATX |
| Noise level | 24.2 dB |
| Purpose | PC |
| Bearing technology | Rifle |
| Supported motherboard form factors | ATX |
| ATX version | 3.1 |
| EPS version | 2.92 |
| 80 PLUS certification | 80 PLUS Bronze |
| Silent mode | ![]() |
| Power supply unit (PSU) form factor | ATX |
| Logistics data | |
| Shipping (inner) case width | 31.1 cm |
| Shipping (inner) case length | 55.6 cm |
| Shipping (inner) case height | 21.8 cm |
| Shipping (inner) case gross weight | 14.9 kg |
| Products per shipping (inner) case | 6 pc(s) |
| EAN | 4260052191866 |
The be quiet! System Power 11 provides an ideal combination of power, quietness, and reliability for your PC build. Delivering a steady 550W of continuous output, this power supply is perfect for mainstream systems that require stable and efficient energy. Its 80 PLUS Bronze certification ensures up to 89.7% efficiency, which means less wasted energy, lower heat generation, and reduced electricity costs. This focus on efficiency results in a cooler and quieter system, letting you focus on your work or gaming without distraction.
Engineered for dependable performance, the System Power 11 features a high-quality, temperature-controlled 120mm fan that balances effective cooling with famously low noise levels. The unit is built with a full suite of top-tier safety protections, safeguarding your valuable components against over-voltage, short circuits, and other electrical irregularities. With its fixed, non-modular cables and standard ATX 3.1 form factor, installation is straightforward, making it an excellent choice for both new builders and those performing system upgrades.
Key Features:- Provides 550W of continuous power
- Features 80 PLUS Bronze certified efficiency
- Cooled by a quiet, temperature-controlled 120mm fan
- Standard ATX form factor for broad compatibility
- Fixed, non-modular cables for easy installation
- Includes a full suite of safety protections (OVP, UVP, OCP, OPP, SCP, OTP, SIP)
- Equipped with multiple PCIe connectors for graphics cards
- Features 5 SATA power connectors for storage drives
Estimated delivery: 03.11 - 05.11
Today: 10:00 - 18:00
Estimated delivery: 03.11 - 05.11
Today: 09:00 - 17:00
Estimated delivery: 03.11 - 05.11
Today: 10:00 - 17:00
Estimated delivery: 03.11 - 05.11
Today: 10:00 - 18:00
Estimated delivery: 03.11 - 05.11
Today: 10:00 - 17:00
Estimated delivery time: 03.11 - 05.11
Estimated delivery time: 04.11 - 05.11
Estimated delivery time: 03.11 - 04.11
Estimated delivery time: 04.11 - 05.11
Estimated delivery time: 04.11
Estimated delivery time: 04.11
- manual pdf (English)
- leaflet (English)


