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be quiet! System Power 11 550W Power Supply Unit 20+4 Pin ATX ATX, W129160788 (Supply Unit 20+4 Pin ATX ATX Black)
be quiet!

be quiet! System Power 11 550W Power Supply Unit 20+4 Pin ATX ATX, W129160788 (Supply Unit 20+4 Pin ATX ATX Black)

By SpecPicks Editorial · Verified 2026-08-21

$175.20
Buy on Amazon — $175.20 Compare to similar power supplies

*Price sourced from Amazon.com. Last updated 2026-08-21. Price and availability subject to change.

Bottom line: The be quiet! System Power 11 550W Power Supply Unit 20+4 Pin ATX ATX, W129160788 (Supply Unit 20+4 Pin ATX ATX Black) is a niche pick — read recent reviews before buying in the power supplies category, priced around $175.20. Read recent reviews carefully before committing.

be quiet! System Power 11 550W

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SpecPicks Verdict

SpecPicks classifies be quiet! System Power 11 550W Power Supply Unit 20+4 Pin ATX ATX… as a niche pick — read recent reviews before buying in the power supplies category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. be quiet!'s positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.

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 Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

  • ✓ W129160788
  • ✓ Backed by be quiet!'s warranty and support channels
  • ✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

  • W129160788

Full Specifications

Brandbe quiet!
Wattage550 watts
Model NameSystem Power 11
Unit Count1 Count
Form FactorATX
Model NumberBP010EU
Connector TypeATX, PCI Express
Cooling MethodAir
Number of Fans1
Output Wattage550 watts
Item Dimensions3.39 x 5.91 x 5.51 inches
Mfr Part NumberBP010EU
Number of Items1
Compatible Devicesgraphics card

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 available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Check price on Amazon →

*Price sourced from Amazon.com. Last updated 2026-08-21. Price and availability subject to change.

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be quiet! System Power 11 550W Power Supply Unit 20+4 Pin ATX ATX, W129160788 (Supply Unit 20+4 Pin ATX ATX Black)
$175.20
View on Amazon →