Seasonic FOCUS GX Spec and Price in the United Kingdom
FOCUS GX is Seasonic's mainstream gold unit and the smallest ATX chassis in its range at 140mm deep, which makes it the easy fit in compact mid-towers. It is fully modular, uses a 120mm fluid-dynamic-bearing fan with a fanless mode up to roughly 30% load, and spans 550W to 1000W — the only Seasonic here that reaches down to 550W. The warranty is ten years rather than the PRIME and VERTEX twelve, and it is built to the older ATX 12V specification.
Captured periodically and may have changed.
- 750W
- 850W
- 1000W
Each point is one capture, not a list price. How we track prices
Specifications
- Wattage
- Efficiency
- 80 Plus Gold
- Form factor
- ATX
- Modular
- Fully modular
- Fan size
- 120 mm
- Length
- 140 mm
- Zero-RPM mode
- Yes
- Warranty
- 10 years
Wattages
Guides for this category
What owners and reviewers say
Summarised from 1 source(s), reviewed September 13, 2026. A source is counted only where it names this model exactly. How we track prices
Commonly praised
- Build quality rated excellent with high average efficiency and quiet operation across most load levels.
- Uses premium components and effective thermal management in a compact, fully modular body.
- Strong power quality with responsive protection circuitry.
Commonly criticised
- Retail price is high, and the connector count is conservative.
Sources behind this summary
Sources
Every spec above was pulled from one of these — a field a source didn't state was left off rather than estimated.