be quiet! System Power 11
550 W5 items in stock
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 |
80 PLUS certificate | Bronze |
Modularity | Permanently installed |
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) |
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 | 50 of 2508 |
Colour | Black |
Exact colour description | Black |
Form factor | ATX |
Efficiency | 89.70 % |
80 PLUS certificate | Bronze |
Modularity | Permanently installed |
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 | 1 x |
Fan diameter | 120 mm |
LED colour | without LED |
Power protection features | EIA, OCP, OPP, OTP, OVP, SCP |
Power | 550 W |
CO₂-Emission | |
Climate contribution |
Length | 14 cm |
Width | 15 cm |
Height | 8.60 cm |
Weight | 1920 g |
Length | 28 cm |
Width | 20 cm |
Height | 10 cm |
Weight | 2.37 kg |
Product Safety |
30-day right of return
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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.Corsair0,9 %
- 2.be quiet!1 %
- 3.Seasonic1,1 %
- 4.Deepcool1,2 %
- 4.Fortron1,2 %
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- 9.Thermaltake2 days
- 10.Enermax3 days
- 11.Seasonic5 days
- 12.be quiet!6 days
- 13.ASUS8 days
Return rate
How often is a product of this brand in the «Power Supply PC» category returned?
Source: Galaxus- 1.MSI3,4 %
- 2.be quiet!3,6 %
- 3.Thermaltake3,9 %
- 4.Seasonic4 %
- 5.Gigabyte4,1 %