Key Specifications
Choose one or multiple features to search for items that have the same specifications.| Ports & interfaces | |
| PCI Express connector | ![]() |
| Number of SATA power connectors | 5 |
| EPS power connector (8-pin) | ![]() |
| ATX power connector (20+4 pin) | ![]() |
| PCI Express power connectors (8-pin) | 2 |
| CPU power connector (4+4 pin) | ![]() |
| PCI Express power connectors (6+2 pin) | 2 |
| Cabling type | Non-Modular |
| Weight & dimensions | |
| Height | 86 mm |
| Width | 150 mm |
| Depth | 150 mm |
| Energy management | |
| Peak power | 450 W |
| Nominal power | 450 W |
| Power Factor Correction (PFC) type | Active |
| Total power | 450 W |
| Certificates | |
| RoHS compliance | ![]() |
| 80 PLUS certification | 80 PLUS Bronze |
| Design | |
| Product colour | Black |
| Illumination | ![]() |
| Number of fans | 1 fan(s) |
| Fan diameter | 120 mm |
| Performance | |
| Mean time between failures (MTBF) | 100000 h |
| Form factor | ATX |
| Noise level | 19.1 dB |
| ATX version | 3.1 |
| Silent mode | ![]() |
| Features | |
| Product type | Power supply unit |
| EAN | 4260052191859 |
The be quiet! System Power 11 450W power supply delivers the reliability and quiet operation essential for modern PC builds. Designed for users who prioritise stability, it provides 450 watts of continuous, dependable power with the efficiency of an 80 PLUS Bronze certification. This unit is built on the ATX 3.1 standard, ensuring excellent compatibility with current components while keeping energy consumption impressively low, even in standby mode. It's an ideal choice for building or upgrading a cost-effective yet high-quality system.
Engineered for minimal noise, this PSU features a temperature-controlled 120mm fan that adjusts its speed based on system load, ensuring near-silent operation during everyday tasks. The high-quality fan and smart design contribute to a long operational life. For your peace of mind, a full suite of top-tier safety protections (including OVP, UVP, and SCP) guards your components against electrical faults. With its fixed, non-modular cables and essential connectors, installation is straightforward for any standard ATX build.
Key Features:- Provides 450 watts of continuous power
- Features 80 PLUS Bronze certified efficiency
- Fits standard ATX PC cases
- Cooled by a quiet, temperature-controlled 120mm fan
- Built on the modern ATX 3.1 standard
- Includes a full suite of safety protections
- Equipped with 2 PCIe and 5 SATA power connectors
Estimated delivery: 01.06
Today: 11:00 - 15:00
Estimated delivery: 01.06
Today: Closed
Estimated delivery: 01.06
Today: Closed
Estimated delivery: 01.06
Today: Closed
Estimated delivery: 01.06
Today: 10:00 - 14:00
Estimated delivery time: 01.06
Estimated delivery time: 01.06
Estimated delivery time: 02.06
Estimated delivery time: 02.06
Estimated delivery time: 02.06
Estimated delivery time: 01.06
Estimated delivery time: 01.06
Estimated delivery time: 02.06
- manual pdf (English)
- leaflet (English)


