be quiet!
be quiet! System Power 11 550W Power Supply Unit 20+4 Pin ATX ATX
Bottom line: The be quiet! System Power 11 550W Power Supply Unit 20+4 Pin ATX ATX: 550W ATX unit from be quiet!, a brand built around low-noise PSU design; main trade-off: listing does not state 80 PLUS efficiency tier.
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Pros & Cons
Pros
- ✓ 550W ATX unit from be quiet!, a brand built around low-noise PSU design
- ✓ Standard 20+4 pin ATX connector fits mainstream ATX motherboards
- ✓ 550W headroom suits mid-range single-GPU builds without overspending on capacity
- ✓ Black finish and compact ATX form factor keep it visually neutral in windowed cases
Cons
- ✗ Listing does not state 80 PLUS efficiency tier
- ✗ No cable type stated - modularity is unclear from the product data
- ✗ Product page lists only model code W129160788, no rail or connector breakdown
- ✗ 550W caps upgrade room if you later move to a high-draw GPU
Manufacturer description
be quiet! System Power 11 550W
SpecPicks Verdict
SpecPicks scored be quiet! System Power 11 550W Power Supply Unit 20+4 Pin ATX ATX using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. be quiet!'s power supplies lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for power supplies of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- W129160788
Full Specifications
| Brand | be quiet! |
|---|---|
| Wattage | 550 watts |
| Model Name | System Power 11 |
| Unit Count | 1 Count |
| Form Factor | ATX |
| Model Number | BP010EU |
| Connector Type | ATX, PCI Express |
| Cooling Method | Air |
| Number of Fans | 1 |
| Output Wattage | 550 watts |
| Item Dimensions | 3.39 x 5.91 x 5.51 inches |
| Mfr Part Number | BP010EU |
| Number of Items | 1 |
| Compatible Devices | graphics card |
| Maximum Input Voltage | 132 volts_of_alternating_current |
| Minimum Input Voltage | 200 volts_of_alternating_current |
| Item dimensions L x W x H | 3.39 x 5.91 x 5.51 inches |
| System Bus Connector Type | 20+4 Pin |
| Connector Type Used on Cable | ATX, PCI Express |
| Global Trade Identification Number | 04260052191866 |
| Full listing title | be quiet! System Power 11 550W Power Supply Unit 20+4 Pin ATX ATX, W129160788 (Supply Unit 20+4 Pin ATX ATX Black) |
Ready to buy?
be quiet! System Power 11 550W Power Supply Unit 20+4 Pin ATX ATX, W129160788 (Supply Unit 20+4 Pin ATX ATX Black) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
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