Seasonic Focus GX

Seasonic FOCUS GX ATX 3.1 – 80+ Gold, fully modular and ready for PCIe 5.1

The Seasonic FOCUS GX ATX 3.1 is an upgraded version of the renowned FOCUS series and fully compatible with ATX 3.1 and PCIe 5.1. With 80 PLUS® Gold certification, a fully modular cable design, and a compact 140 mm depth, it is designed for modern gaming builds and high-performance workstations.

The series is available in 750W, 850W, and 1000W, and all models come with a native 12V-2x6 cable for next-generation graphics cards.

ATX 3.1 and PCIe 5.1 – future-proof platform

• Full ATX 3.1 compatibility

• Native 12V-2x6 PCIe Gen 5.1

• Multi-GPU support

• Handles transient loads according to ATX 3.1 requirements

• 1× 24-pin ATX

• 2× EPS 12V

• 1× 12V-2x6

• 2–3× PCIe 8-pin (depending on model)

• 8× SATA

• 3× Peripheral (Molex)

80 PLUS Gold – high efficiency

The FOCUS GX series is 80 PLUS Gold-certified, which means:

• High energy efficiency

• Lower heat generation

• Lower noise level

• Lower power consumption over time

Perfect for systems running many hours a day.

Digital Hybrid Fan Control – three operating modes

Seasonic uses its patented Digital Hybrid Fan Control with three stages:

1. Fanless Mode – completely fanless operation at low load

2. Silent Mode – very low noise level

3. Cooling Mode – active cooling at high load

This provides an optimal balance between quiet operation and temperature control.

135 mm Fluid Dynamic Bearing fan

The FOCUS GX uses a 135 mm FDB (Fluid Dynamic Bearing) fan:

• Lower friction and vibration

• Longer lifespan than traditional ball bearings

• Quiet and smooth operation even under load

Power distribution

Voltage regulation: ±3% on 12V, 5V and 3.3V
Protection: OPP / OVP / UVP / SCP / OCP / OTP

Fully modular design

• Only connect the cables you need

• Better airflow in the chassis

• Cleaner cable management

• Cable-free connection design internally

Compact yet powerful

• Dimensions: 140 × 150 × 86 mm

• Fits most ATX and mATX chassis

• 10-year warranty

Choose the right model

750W – For RTX 4070/4080 class
850W – For more powerful GPU + overclocking
1000W – For RTX 4090/RTX 50 series and workstation builds

Summary

The Seasonic FOCUS GX ATX 3.1 is a premium choice for those who want:

✔ 80+ Gold efficiency
✔ Fully modular cable design
✔ Native 12V-2x6
✔ Quiet Digital Hybrid Fan Control
✔ Japanese 105°C capacitors
✔ 10-year warranty

A very strong choice for serious gaming and high-end systems.