be quiet! System Power 11
550 WMore than 10 pieces in stock
Performance4
Product details
The be quiet! System Power 11 power supply with a power output of 550 W is a reliable choice for PC builds that require both performance and efficiency. This ATX 3.1 power supply is rated with an 80+ Bronze certification, meaning it offers high energy efficiency and optimizes power consumption. It is equipped with up to three PCIe 6+2 connectors, ensuring compatibility with current and future graphics cards. The integrated DC/DC converter provides stable voltage regulation, enhancing the system's reliability. Additionally, the 120 mm fan ensures effective cooling and quiet operation, which is particularly advantageous in noise-sensitive environments.
- 80+ Bronze certification for high energy efficiency
- Up to 3 PCIe 6+2 connectors for modern graphics cards
- DC/DC converter for stable voltage regulation
- 120 mm fan for quiet operation and effective cooling.
Form factor | ATX |
Internal connection options | 12V-2x6 (1x), 15-pin S-ATA (5x), 20+4 PIN ATX power connector (1x), 4-pin CPU (1x), 4-pin Molex (1x), 4+4-pin 12V (1x), 6+2-pin PCI Express (2x) |
Modularity | Permanently installed |
Max. noise level | 24.20 dB |
ATX version | 3.1 |
Item number | 57939218 |
Manufacturer | be quiet! |
Category | Power Supply PC |
Manufacturer no. | BP010EU |
Release date | 22.4.2025 |
Sales rank in Category Power Supply PC | 8 of 2562 |
External links |
Colour | Black |
Exact colour description | Black |
Form factor | ATX |
ATX version | 3.1 |
Efficiency | 89.70% |
Modularity | Permanently installed |
Max. noise level | 24.20 dB |
Internal connection options | 12V-2x6 (1x), 15-pin S-ATA (5x), 20+4 PIN ATX power connector (1x), 4-pin CPU (1x), 4-pin Molex (1x), 4+4-pin 12V (1x), 6+2-pin PCI Express (2x) |
Cooling method | Active cooling |
Number of fans | 1x |
Fan diameter | 120 mm |
Power | 550 W |
Country of origin | China |
CO₂-Emission | |
Climate contribution |
Scope of delivery | Screws, cable ties |
Length | 14 cm |
Width | 15 cm |
Height | 8.60 cm |
Weight | 1920 g |
Product Safety |
Length | 28 cm |
Width | 20 cm |
Height | 10 cm |
Weight | 2.37 kg |
30-day right of return
Compare products
Goes with
Reviews & Ratings
Statutory warranty score
How often does a product of this brand in the «Power Supply PC» category have a defect within the first 24 months?
Source: Galaxus- 1.HP0,3 %
- 2.be quiet!0,9 %
- 2.Corsair0,9 %
- 4.Fortron1 %
- 5.Deepcool1,1 %
Statutory warranty case duration
How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: Galaxus- 11.Lian-Li3 days
- 11.NZXT3 days
- 13.be quiet!4 days
- 14.ASUS5 days
- 15.Seasonic6 days
Return rate
How often is a product of this brand in the «Power Supply PC» category returned?
Source: Galaxus- 2.MSI3,4 %
- 3.Noctua3,5 %
- 4.be quiet!3,7 %
- 5.Enermax3,8 %
- 5.Gigabyte3,8 %