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Silverstone Technology 550 Watt 80 Plus Bronze ATX PSU with Flat Black Cables ET550-B Power Supply, SST-ET550-B
SilverStone

Technology 550 Watt 80 Plus Bronze ATX PSU with Flat Black Cables ET550-B Power Supply, SST-ET550-B

By SpecPicks Editorial · Verified 2026-08-21

$68.25
Buy on Amazon — $68.25 Compare to similar power supplies

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

Bottom line: The Technology 550 Watt 80 Plus Bronze ATX PSU with Flat Black Cables ET550-B Power Supply, SST-ET550-B is a niche pick — read recent reviews before buying in the power supplies category, priced around $68.25. Read recent reviews carefully before committing.

SilverStone created the Essential series power supplies to provide enthusiasts with an affordable choice when building PCs. ET650-B and ET550-B have 80 PLUS Bronze efficiency with single +12V rail and the ability to provide 24/7 40℃continuous output. In addition, they are equipped with low-noise 120mm fan and all-black flat cables for easier management. Even high-end systems with powerful graphics cards can be powered easily by Essential series PSUs' standard 8pin / 6pin PCI-E connectors, making them an outstanding choice for those seeking the most value and performance for their money.

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SpecPicks Verdict

SpecPicks classifies Silverstone Technology 550 Watt 80 Plus Bronze ATX PSU with Flat… 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. SilverStone'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

  • ✓ High efficiency with 80 PLUS Bronze certification
  • ✓ Backed by SilverStone'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

  • High efficiency with 80 PLUS Bronze certification
  • 24/7 continuous power output with 40℃ operating temperature
  • Class-leading single +12V rail. PCI-E 8pin and PCI-E 6pin connectors support.
  • Silent running 120mm fan with 18 dBA
  • All-black flat cables design

Full Specifications

BrandSilverStone
Wattage550 watts
Fan Size12 centimeters
Model NamePS-ET550-B
Form FactorATX
Model NumberSST-ET550-B
Built-In MediaET550-B PSU
Connector TypeATX
Cooling MethodAir
Item Type NameSilverStone Technology 550 Watt 80 Plus Bronze ATX PSU with Flat Black Cables ET550-B
Number of Fans1
Output Wattage550
Item Dimensions5.91 x 5.51 x 3.39 inches
Mfr Part NumberET550-B

Ready to buy?

Silverstone Technology 550 Watt 80 Plus Bronze ATX PSU with Flat Black Cables ET550-B Power Supply, SST-ET550-B 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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Silverstone Technology 550 Watt 80 Plus Bronze ATX PSU with Flat Black Cables ET550-B Power Supply, SST-ET550-B
$68.25
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