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EVGA SuperNOVA 550 GM, 80 Plus Gold 550W, Fully Modular, ECO Mode with DBB Fan, 7 Year Warranty, Includes Power ON Self Tester, SFX Form Factor, Power Supply 123-GM-0550-Y1
EVGA

SuperNOVA 550 GM, 80 Plus Gold 550W, Fully Modular, ECO Mode with DBB Fan, 7 Year Warranty, Includes Power ON Self Tester, SFX Form Factor, Power Supply 123-GM-0550-Y1

By SpecPicks Editorial · Verified 2026-08-21

$119.99
Buy on Amazon — $119.99 Compare to similar power supplies

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

Bottom line: The SuperNOVA 550 GM, 80 Plus Gold 550W, Fully Modular, ECO Mode with DBB Fan, 7 Year Warranty, Includes Power ON Self Tester, SFX Form Factor, Power Supply 123-GM-0550-Y1 is a niche pick — read recent reviews before buying in the power supplies category, priced around $119.99. Read recent reviews carefully before committing.

The product is multiple voltage compatible, that voltage arrange is 100-240V

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SpecPicks Verdict

SpecPicks classifies EVGA SuperNOVA 550 GM, 80 Plus Gold 550W, Fully Modular, ECO Mode… 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. EVGA'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

  • ✓ 550W SFX form factor
  • ✓ Backed by EVGA'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

  • 550W SFX form factor
  • 80 PLUS Gold certified, with 90% (115VAC) / 92% (220VAC~240VAC) efficiency or higher under typical loads
  • Fan Size/ Bearing: 92mm double Ball Bearing
  • Heavy-duty protections, including OVP, UVP, OCP, OPP, and SCP
  • 7 year

Full Specifications

BrandEVGA
Wattage550 watts
Fan Size9.2 centimeters
Model Name123-GM-0550-Y1
Form FactorSFX
Model Number123-GM-0550-Y1
Connector Type24-pin
Cooling MethodAir
Item Type NameEVGA Supernova 550 GM, 80 Plus Gold 550W, Fully Modular, ECO Mode with DBB Fan, 7 Year Warranty, Includes Power ON Self Tester, SFX Form Factor, Power Supply 123-GM-0550-Y1
Number of Fans1
Output Wattage550 watts
Item Dimensions10.55 x 3.82 x 7.68 inches
Mfr Part Number550GM
Fan Size/ Bearing92mm double Ball Bearing

Ready to buy?

EVGA SuperNOVA 550 GM, 80 Plus Gold 550W, Fully Modular, ECO Mode with DBB Fan, 7 Year Warranty, Includes Power ON Self Tester, SFX Form Factor, Power Supply 123-GM-0550-Y1 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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EVGA SuperNOVA 550 GM, 80 Plus Gold 550W, Fully Modular, ECO Mode with DBB Fan, 7 Year Warranty, Includes Power ON Self Tester, SFX Form Factor, Power Supply 123-GM-0550-Y1
$119.99
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