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: 14.10 - 20.10
Today: Closed
Estimated delivery: 14.10 - 20.10
Today: Closed
Estimated delivery: 14.10 - 20.10
Today: Closed
Estimated delivery: 14.10 - 20.10
Today: Closed
Estimated delivery: 14.10 - 20.10
Today: Closed
Estimated delivery time: 14.10 - 20.10
Estimated delivery time: 15.10 - 20.10
Estimated delivery time: 14.10 - 19.10
Estimated delivery time: 15.10 - 20.10
Estimated delivery time: 15.10 - 19.10
Estimated delivery time: 15.10 - 19.10