- SKU: NEST-173
- MPN: SST-EX500-B
- EAN: 4710679810614
The be quiet! System Power 11 is an efficient and particularly quiet power supply for price-conscious PC enthusiasts. With ATX 3.1 support, modern protection, and stable power delivery, it is ideal for compact gaming and office systems.
be quiet! System Power 11 80 PLUS Bronze power supply, ATX 3.1, PCIe 5.1 - 450 Watt, black
The be quiet! System Power 11 is an efficient and particularly quiet power supply for price-conscious PC enthusiasts. With ATX 3.1 support, modern protection, and stable power delivery, it is ideal for compact gaming and office systems.
The be quiet! System Power 11 is an efficient and particularly quiet power supply for price-conscious PC enthusiasts. With ATX 3.1 support, modern protection, and stable power delivery, it is ideal for compact gaming and office systems.
- SKU: NEBE-255
- MPN: BP009EU
- EAN: 4260052191859
- Warranty: 12 Months
The be quiet! System Power 11 is an efficient and particularly quiet power supply for price-conscious PC enthusiasts. With ATX 3.1 support, modern protection, and stable power delivery, it is ideal for compact gaming and office systems.
– ATX 3.1 power supply with support for PCIe 5.1 graphics cards
– Two PCIe 6+2 connectors for efficient GPU power
– Operates with up to 89% efficiency (80 PLUS Bronze)
– Temperature-controlled 120mm fan for quiet operation
– Safety features: OCP, OVP, UVP, SCP, OTP, OPP
– Ready for modern hardware and GPUs
The System Power 11 is a 140mm deep ATX form factor power supply – perfect for powerful desktop PCs and fits into most common cases. With ATX 3.1, you get maximum efficiency and are perfectly prepared for future hardware – optimized power consumption, faster transient response, and full compatibility with PCIe 5.1. It supports mid-range graphics cards with two PCIe 6+2 connectors and offers high stability in cross-load scenarios.
The power supply is equipped with a single-rail power supply and is ideal for powerful hardware, as it concentrates all available power on a single 12V rail and reliably supplies high loads.
The 450-watt power supply provides stable and reliable power for office, multimedia systems, and small gaming PCs.
Quiet operation in a compact format
Thanks to semi-passive cooling, the fan remains off when idle and only spins up when power increases, ensuring whisper-quiet operation. The temperature-controlled 120mm fan ensures quiet airflow and efficient cooling – ideal for home offices, media, and gaming PCs.
With its optimized cooling and semi-passive operation, this power supply is ideal for silent and gaming PCs, as it minimizes annoying fan noise and also offers reliable performance.
High-level efficiency and protection
80 PLUS Bronze – Solid efficiency with up to 89% efficiency under typical load at 230V. At the same time, extensive protective circuits reliably protect against voltage spikes, short circuits, and overloads.
| Category | Specification |
|---|---|
| Color | Black |
| Dimensions (L x W x H) | 140 x 150 x 86 mm |
| Fan Size | 120 mm |
| Power Supply Format | ATX |
| ATX Standard | ATX 3.1 |
| 12V Distribution | Single Rail |
| Modular Power Supply | No |
| Protection Circuits | OCP, OPP, OTP, OVP, SCP, UVP |
| Total Power Output | 450 W |
| Power +12V Rail(s) | 450 W |
| Max. Cable Length CPU Power | 550 mm |
| Max. Cable Length 24-Pin Motherboard | 600 mm |
| Cooling | Semi-Passive |
| CPU Power Connectors (12V ATX/EPS) | 1 |
| 8-Pin PCIe Connectors | 1 |
| 6+2-Pin PCIe Connectors | 2 |
| SATA Power Connectors | 5 |
£51.07£42.56 Inc VatEx Vat
















