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Seasonic
Seasonic FOCUS GX-850
High-Performance Gaming, Content Creation, Workstation, Modern GPU Builds
Overview
The Seasonic FOCUS GX-850 is an ATX 3.0 certified 850W fully modular power supply built for modern high-performance PC builds. It features a native 12V-2x6 (12VHPWR) connector rated up to 600W for the latest graphics cards, along with two EPS ports and three PCIe 6+2 ports for flexible GPU and CPU setups. Built on an Active PFC + Full Bridge LLC + Synchronous Rectification + DC to DC platform with an all-Japanese capacitor lineup, and cooled by a 135mm FDB fan with hybrid fanless mode, the GX-850 delivers stable, quiet, and reliable power backed by a 10-year warranty.
Key Highlights
- ATX 3.0 certified with a native 12V-2x6 (12VHPWR) connector delivering up to 600W for RTX 40 series and next-gen graphics cards
- 80 PLUS Gold and Cybenetics Gold efficiency rating with Lambda A noise certification for efficient, quiet operation
- All Japanese electrolytic capacitors from Rubycon and Nippon Chemi-Con, including a 680 uF / 400V primary capacitor for superior ripple suppression and reliability
- 135mm FDB (Fluid Dynamic Bearing) fan with S3FC fanless mode keeps the fan off below 30% load for silent operation during light workloads
- Compact 140mm depth, fully modular cabling, and single +12V rail with DC to DC design, backed by a 10-year warranty
Technical Specifications
| Brand | Seasonic |
|---|---|
| Model | Seasonic FOCUS GX-850 |
| Wattage | 850W |
| Efficiency Rating | 80 PLUS Gold / Cybenetics Gold |
| Form Factor | ATX |
| Modular | Fully Modular |
| ATX Standard | ATX 3.0 |
| Fan Size | 135mm |
| Fan Bearing | FDB (Fluid Dynamic Bearing) |
| Topology | Active PFC + Full Bridge LLC + Synchronous Rectification + DC to DC |
| Capacitors | All Japanese Electrolytic Capacitors (Rubycon / Nippon Chemi-Con) |
| AC Input | 100-240V ~ 11-5.5A 50/60Hz |
| +12V Rail | Single +12V Rail |
| Protection | OPP / OVP / UVP / OCP / OTP / SCP |
| Connectors | 1x 24-pin ATX, 2x 4+4-pin CPU/EPS, 1x 12V-2x6 (600W), 3x PCIe 6+2, 10x SATA, 3x Molex |
| Dimensions | 150 × 140 × 86 mm (W × L × H) |
| Weight | 1.62 kg |
| MTBF | 100,000 Hours |
| Warranty | 10 Years |