EVGA

EVGA SuperNOVA 550 GM

Name: 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
Brand: EVGA
SKU: B07JFLGGQ6

Status: EVGA SuperNOVA 550 GM: Unavailable on Amazon as of 2026-10-07 04:24 UTC. SpecPicks has no in-stock listing with matching specs on file; the search below lists current offers. eBay sellers may still list this model new or used.

🛒 Search eBay for this model

Bottom line: The EVGA SuperNOVA 550 GM: 80 PLUS Gold, up to 92% efficiency at 220-240V under typical load; main trade-off: 550W ceiling limits pairing with top-tier GPUs like the RTX 4090.

Unavailable on Amazon as of 2026-10-07 04:24 UTC

As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →

Currently unavailable on Amazon. Not the same product — an in-stock alternative:

Similar: Zahara 8 — $15.37 on Amazon as of 2026-10-06 12:20 UTC (price may vary).

View Current Price — $15.37

Original listing (currently unavailable) → Compare to similar power supplies

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-07

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. About the author →

Pros & Cons

Pros

✓ 80 PLUS Gold, up to 92% efficiency at 220-240V under typical load
✓ Fully modular cabling for cleaner small-form-factor builds
✓ Compact SFX form factor fits ITX and SFF cases
✓ 7-year warranty plus OVP, UVP, OCP, OPP and SCP protections
✓ 92mm double ball bearing fan with ECO fan-off at low load

Cons

✗ 550W ceiling limits pairing with top-tier GPUs like the RTX 4090
✗ SFX-only, needs a bracket to mount in standard ATX cases
✗ 92mm fan can spin up audibly under heavy sustained load
✗ No RGB or digital wattage monitoring found on premium SFX units

Manufacturer description

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

SpecPicks Verdict

SpecPicks scored EVGA SuperNOVA 550 GM using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. EVGA'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

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

Brand	EVGA
Wattage	550 watts
Fan Size	9.2 centimeters
Model Name	123-GM-0550-Y1
Form Factor	SFX
Model Number	123-GM-0550-Y1
Connector Type	24-pin
Cooling Method	Air
Item Type Name	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
Number of Fans	1
Output Wattage	550 watts
Item Dimensions	10.55 x 3.82 x 7.68 inches
Mfr Part Number	550GM
Fan Size/ Bearing	92mm double Ball Bearing
Compatible Devices	Personal Computer
Power Supply Design	Full Modular
Warranty Description	7 years
Maximum Input Voltage	240 volts
Minimum Input Voltage	100 volts
Item dimensions L x W x H	10.55 x 3.82 x 7.68 inches
Full listing title	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

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 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.

Check price on Amazon →