FOCUS GX White ATX 3.1
Following the well-established legacy of the Seasonic FOCUS Series, the FOCUS GX White Series has been upgraded to comply with the ATX 3.1 and PCIe 5.1 standards. It offers a complete range of power supplies from 750W to 1000W, all within a compact 140mm depth. Each unit features a 135mm fan, a 12V-2×6 cable, our new OptiSink technology and a stunning white finish. These units are designed to be perfect allies in powering the latest high-power graphics cards and processors available on the market.
Availability varies by region:
- Asia: Already available.
- Europe: February 2025.
- USA: March 2025.
For detailed information, please contact our customer support team or your local distributor.
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The FOCUS GX White ATX 3.1Series achieves 80 PLUS® Gold certification with its 90 % efficiency at 50 % system load.
80 PLUS® GOLD
- Warranty
10 Years
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Cabling
Fully Modular
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140 mm (L) x 150 mm (W) x 86 mm (H)
Dimensions
- ATX Specifications
ATX 3.1 & PCIe 5.1
New FOCUS GX White ATX 3.1

New Seasonic OptiSink Design
The overall quality and reliability of the FOCUS v4 Series has been greatly improved by a brand-new PCB (Printed Circuit Board) layout and the implementation of automated surface mount technology during production, which minimizes human production errors.
By using a redesigned PCB combined with smaller MOSFET and heat sink components, the internal space within the power supply was increased to enhance heat dissipation and airflow to result in better component cooling.

The eightfold increase in heat dissipation keeps the internals of the power supply cooler, eventually leading to improved product quality, long-term reliability, and more efficient operation.
The redesigned layout of the power supply components and its improved thermal performance creates versatility and allows the power supply to be safely installed in any orientation.
The OptiSink design is an eco-friendly solution that not only lowers the costs of material usage and production but also leads to energy savings in the long run.
ATX 3.1 and 16-Pin PCIe Gen 5 Cable (12V-2×6)
Seasonic’s latest FOCUS GX White ATX 3 Series is designed and built to power new PC components requiring the new ATX 3.1 and PCIe 5.1 standards.

Digital Hybrid Fan Control
The industry’s first, Seasonic patented, advanced three-phased thermal control achieves optimal between silence and cooling. This Digital Hybrid Fan Control functions in three operational stages: Fanless Mode, Silent Mode, and Cooling Mode.

Reduced noise without increase in temperature
Extended fan life due to the reduced number of fan rotations
Optimal heat dissipation ensured at all times, further enhanced with OptiSink technology.
Unsurpassed silent performance in Fanless Mode
FOCUS GX-1000 White ATX 3.1


FOCUS GX-750 / 850 White ATX 3.1


Technical Specifications | ||
---|---|---|
80PLUS® | Gold | |
Cybenetics Efficiency Level | Gold | |
Cybenetics Noise Level | A- | |
Form Factor | ATX/EPS | |
Fan Information | Fan Size | 135 mm |
Fan Control | Digital Hybrid Fan Control | |
Fan Bearing | Fluid Dynamic Bearing | |
Life Expectancy | 50,000 hours at 40 °C, 15 % – 65 % RH | |
Cable Information | Modularity | Fully Modular |
Cable type | Individual White Cables with Braided Pattern | |
Electrical Features | Operating Temperature | 0 – 50 °C |
MTBF @ 25 °C, excl. fan | 100,000 hours | |
AC Input | Full Range | |
Protection | OCP, OPP, OTP, OVP, SCP, UVP | |
Safety and Environmental | Safety and EMC | BSMI, CB, CCC, CE, cTUVus, EAC, FCC, TUV |
Environmental Compliance | Energy Star, ErP Lot 6, REACH, RoHS, WEEE | |
Warranty | 10 Years |
Power Output | ||||||
---|---|---|---|---|---|---|
AC Input | 100 V – 240 V | |||||
13 – 6.5 A | ||||||
50 Hz – 60 Hz | ||||||
DC Output | Rail | +3.3 V | +5 V | +12 V | -12 V | +5 VSB |
Maximum Power | 25 A | 25 A | 83 A | 0.3 A | 3 A | |
125 W | 996 W | 3.6 W | 15 W | |||
Total continuous power | 1000 W |
MB (24/20 pins)
CPU (8/4 pins)
PCIe (8/6 pins)
SATA
Molex
12V-2×6 (12+4 Pins to 12+4 Pins)
Recommended 12V-2×6 Cable Installation
- BOTH 12V-2×6 connectors of your 12V-2×6 cable must always be plugged into your power supply, ensuring they are FULLY INSERTED, CLICK-LOCKED, and TIGHT.
- DO NOT bend or apply force to the cable after it is plugged into place.

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