be quiet! System Power 11 450W (BP009EU) – 80 PLUS Bronze ATX Power Supply
The be quiet! System Power 11 450W (MPN BP009EU) is a reliable, entry-level internal power supply unit designed for mid-range desktop PCs. With 80 PLUS Bronze efficiency and ATX 3.1 compliance, it delivers stable 450 W continuous output and supports modern PCIe 5.1 graphics cards via dual 6+2-pin connectors. Its non-modular, flat black cabling ensures straightforward installation and dependable everyday performance.
Key Features
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450 W Continuous Power Output
Stable 450 W delivery with a single 12 V rail rated at 37.5 A. -
80 PLUS Bronze Certified
Up to 89% efficiency at 50% load and 230 V input, helping reduce power loss and heat. -
Modern ATX Standards
- ATX 3.1 and EPS 12V v2.92 compliance
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Supports PCIe 5.1 GPUs via 2 x 6+2-pin PCIe connectors
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Quiet, Controlled Cooling
- 120 mm rifle-bearing fan
- Temperature-controlled operation
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Approx. 10.5 dB(A) at light load, up to approx. 19.1 dB(A) at full load
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Comprehensive Protection
Built-in safety features:
OCP, OVP, UVP, OPP, OTP, SCP, plus surge and inrush protection. -
Flat, Fully Wired Cabling
Non-modular design with flat black cables for hassle-free installation. -
Long-Term Reliability
- MTBF: 100,000 hours at 25 °C
- 5-year manufacturer’s warranty
Technical Specifications
| Category | Specification |
|---|---|
| Model / MPN | System Power 11 450 W (BP009EU) |
| Form Factor | ATX |
| Compliance | ATX 3.1, EPS 12V v2.92 |
| Power Output | 450 W continuous |
| Efficiency Certification | 80 PLUS Bronze (up to 89% at 50% load) |
| Input Voltage | 200–240 VAC |
| Input Frequency | 50 Hz |
| Input Current | Up to 4 A |
| Power Factor | = 0.98 at full load |
| Standby Power | < 0.15 W |
| Operating Temperature | 0–40 °C |
| MTBF | 100,000 hours at 25 °C |
| 12 V Rail | Single 12 V rail at 37.5 A |
| Protections | OCP, OVP, UVP, OPP, OTP, SCP, surge, inrush |
| Fan | 120 mm rifle-bearing, temperature-controlled |
| Noise Level | ~10.5 dB(A) light load, ~19.1 dB(A) full load |
| Modularity | Non-modular |
| Connectors | 1 x 20+4-pin ATX |
| 1 x 4+4-pin CPU (EPS) | |
| 2 x 6+2-pin PCIe | |
| 5 x SATA | |
| 1 x Molex (4-pin PATA) | |
| Cable Type | Flat black cables |
| Cable Length | Up to 90 cm |
| Dimensions (W x D x H) | 150 mm x 140 mm x 86 mm |
| Weight | ~1.7 kg |
| Certifications | CE, CB, TUV, RoHS, UKCA, WEEE, ErP, Energy Star |
| Warranty | 5 years |
