EVGA

EVGA SuperNOVA 550 Ga

Name: EVGA SuperNOVA 550 Ga, 80 Plus Gold 550W, Fully Modular, ECO Mode with Dbb Fan, 10 Year Warranty, Compact 150mm Size, Power Supply 220-GA-0550-X1
Brand: EVGA
SKU: B07WNXY6T5

Status: EVGA SuperNOVA 550 Ga (550W 80 Plus Gold fully modular ATX power supply): Unavailable on Amazon as of 2026-10-19 10:22 UTC. SpecPicks has no in-stock 550W 80 Plus Gold fully modular ATX power supply on file; an Amazon search for "550W 80 Plus Gold fully modular ATX power supply" lists current offers with the same specs. eBay sellers may still list this model new or used.

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Bottom line: The EVGA SuperNOVA 550 Ga: 80 Plus Gold: 90%+ efficiency under typical loads; main trade-off: 550W leaves little headroom for high-draw flagship GPUs.

Unavailable on Amazon as of 2026-10-19 10:22 UTC

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By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-19

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: 90%+ efficiency under typical loads
✓ Fully modular cabling, so unused leads stay out of the case
✓ Compact 150mm length fits tight ATX cases
✓ 100% Japanese capacitors plus DC-DC design for stable 3.3V/5V rails
✓ 10-year warranty with a double ball bearing fan and quiet ECO mode

Cons

✗ 550W leaves little headroom for high-draw flagship GPUs
✗ No ATX 3.0 or 12VHPWR support listed in the specs
✗ Connector counts not in the listing; check before you buy
✗ Gold, not Platinum; higher-tier units are more efficient

Manufacturer description

The EVGA SuperNOVA 550 GA is a 550W, 80 Plus Gold, fully modular power supply for mid-range gaming and everyday desktop builds. Gold certification means 90% efficiency or higher under typical loads, so less power turns into heat and more of it reaches your components. Because it is fully modular, you connect only the cables your build needs. That leaves fewer loose leads in the case, keeps airflow paths clear and makes cable management easier. At 150mm long, the unit fits standard ATX cases and leaves room for drive cages and front-mounted radiators. The electrical design uses 100% Japanese…

SpecPicks Verdict

SpecPicks scored EVGA SuperNOVA 550 Ga 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.

Frequently Asked Questions

Is the EVGA SuperNOVA 550 GA fully modular?

Yes. Every cable is detachable, so you can connect only the leads your build uses. This reduces clutter and improves airflow.

How long is the warranty on the SuperNOVA 550 GA?

EVGA backs model 220-GA-0550-X1 with a 10-year warranty. Check EVGA's site for current registration and claim terms.

Will the 550 GA fit in a smaller ATX case?

The unit is 150mm long, which is compact for an ATX power supply. Check your case's PSU clearance and allow a little extra space for modular cable plugs.

Is the SuperNOVA 550 GA quiet?

It uses a double ball bearing fan and EVGA ECO mode, which keeps fan noise down at lower loads. That makes it a good fit for quiet desktop and home-office builds.

Is 550W enough for my gaming PC?

550W suits many mid-range CPU and GPU pairings. Compare it with your graphics card maker's recommended PSU wattage, and choose a higher-wattage unit if you plan a high-draw GPU or future upgrades.

Key Features

80 plus Gold certified, with 90% efficiency or higher under typical loads
Fully modular to reduce clutter and improve airflow
100% Japanese capacitors, LLC resonant circuit design +DC-DC converter design to improve 3.3V./ 5V. Stability
Double ball Bearing fan and EVGA eco mode for exceptional reliability and quiet operation

Full Specifications

Brand	EVGA
Wattage	550 watts
Model Name	SuperNOVA
Unit Count	1 Count
Form Factor	ATX
Model Number	220-GA-0550-X1
Connector Type	24-pin
Cooling Method	Air
Item Type Name	Power Supply
Number of Fans	1
Output Wattage	550 watts
Item Dimensions	11.8 x 9 x 4.9 inches
Mfr Part Number	220-GA-0550-X1
Compatible Devices	Personal Computer
Power Supply Design	Full Modular
Warranty Description	10 year manufacturer
Maximum Input Voltage	240 volts
Minimum Input Voltage	220 volts
Item dimensions L x W x H	11.8 x 9 x 4.9 inches
System Bus Connector Type	ATX
Full listing title	EVGA SuperNOVA 550 Ga, 80 Plus Gold 550W, Fully Modular, ECO Mode with Dbb Fan, 10 Year Warranty, Compact 150mm Size, Power Supply 220-GA-0550-X1

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