Seasonic

Seasonic FOCUS GX-750

Status: Seasonic FOCUS GX-750 - 750W - 80+ Gold…: Unavailable on Amazon as of 2026-10-03 10:18 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.

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Bottom line: The Seasonic FOCUS GX-750: 90% efficient at 50% load per its 80 PLUS Gold rating; main trade-off: efficiency drops to 87% at 20% and 100% load, vs. 90% at 50%.

Unavailable on Amazon as of 2026-10-03 10:18 UTC

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Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives:

Similar: GOLDEN FIELD 750W SFX Power Supply - Fully… — $111.99 on Amazon as of 2026-10-06 22:20 UTC (price may vary).

View Current Price — $111.99

Similar: Lian Li SP750 V2 Gold 750 Watt SFX Form Factor… — $124.99 on Amazon as of 2026-10-06 12:20 UTC (price may vary).

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Similar: Rosewill VMG 750W 80+ Gold — $63.15 on Amazon as of 2026-10-06 12:20 UTC (price may vary).

View Current Price — $63.15

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

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-03

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

✓ 90% efficient at 50% load per its 80 PLUS Gold rating
✓ Fully modular: connect only the cables your build needs
✓ 140 mm deep body fits compact ATX cases
✓ Hybrid fan runs fanless at light loads, then ramps in stages

Cons

✗ Efficiency drops to 87% at 20% and 100% load, vs. 90% at 50%
✗ 750W may be too little for top-tier GPU and CPU pairings
✗ Listing doesn't say which GPU power connectors are included
✗ Gold rating, not Platinum or Titanium, for the most efficient builds

Manufacturer description

The Seasonic FOCUS GX-750 is a 750W, 80 PLUS Gold, fully modular ATX power supply. It is built for mid-to-high-end gaming PCs where you want efficiency, low noise and a clean build. The listing names compatibility with Nvidia RTX 30/40 Super and AMD graphics cards (model SSR-750FX). The efficiency numbers are specific. It runs at 87% efficiency at 20% load, 90% at 50% load and 87% at full load. That means less wasted heat at the loads a gaming system spends most of its time in. The fully modular design lets you connect only the cables your build needs, which cuts clutter and improves airflow…

SpecPicks Verdict

SpecPicks scored Seasonic FOCUS GX-750 using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. Seasonic'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 Seasonic FOCUS GX-750 fully modular?

Yes. Every cable is detachable, so you install only the ones your build needs. That reduces clutter and improves airflow.

How efficient is the Seasonic FOCUS GX-750?

It is 80 PLUS Gold certified. Seasonic lists 87% efficiency at 20% load, 90% at 50% load and 87% at 100% load.

Will the FOCUS GX-750 work with an RTX 40 Super or AMD graphics card?

The listing names compatibility with Nvidia RTX 30/40 Super and AMD GPUs. Check your card maker's recommended PSU wattage and the connectors it needs against the product listing before you buy.

Is the Seasonic FOCUS GX-750 quiet?

It uses Seasonic's Hybrid Silent Fan Control, which has three stages: Fanless Mode, Silent Mode and Cooling Mode. At light loads the fan can stay off, and it spins up only as cooling is needed.

What warranty comes with the Seasonic FOCUS GX-750?

Seasonic covers the FOCUS GX-750 with a 10-year warranty. Check Seasonic's site for the current claim terms.

Key Features

COMPACT SIZE - 140 MM DEEP; High power output to size ratio.
FULL MODULAR; use only the cables you need to reduce clutter and improve airflow for a better ventilated system.
80 PLUS GOLD; 87% efficient at 20% load, 90% efficient at 50% load, and 87% efficient at 100% load.
HYBRID SILENT FAN CONTROL; The industry's first, Seasonic patented, advanced three-phased thermal control achieves optimal between silence and cooling. This Hybrid Silent Fan Control functions in three operational stages: Fanless Mode, Silent Mode, and Cooling Mode.
10 YEAR WARRANTY; Our commitment to superior quality.

Full Specifications

Brand	Seasonic
Wattage	750 watts
Model Name	Focus GX-750
Form Factor	ATX12V
Connector Type	ATX
Cooling Method	Air
Output Wattage	750
Compatible Devices	Personal Computer
Item dimensions L x W x H	7.28 x 12.44 x 4.69 inches
Full listing title	Seasonic FOCUS GX-750 - 750W - 80+ Gold - Full-Modular - ATX Form Factor - Low Noise - Premium Japanese Capacitor - 10 Year Warranty - Nvidia RTX 30/40 Super & AMD GPU Compatible (Ref. SSR-750FX)

Ready to buy?

Seasonic FOCUS GX-750 - 750W - 80+ Gold - Full-Modular - ATX Form Factor - Low Noise - Premium Japanese Capacitor - 10 Year Warranty - Nvidia RTX 30/40 Super & AMD GPU Compatible (Ref. SSR-750FX) 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.

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