The Seasonic Focus GX-850 V4 ATX 3.1 Gold 850W Power Supply delivers exceptional efficiency, reliability, and next-gen readiness for modern PC builds. Fully modular and 80 PLUS Gold certified, it ensures clean cable management and high energy efficiency. Compliant with the latest ATX 3.1 and PCIe 5.1 standards, it features a native 12V-2x6 (12VHPWR) connector, making it ideal for powering high-performance GPUs and CPUs. Built with premium components and backed by Seasonic’s trusted engineering, the GX-850 V4 offers silent operation with its hybrid fan control and long-lasting durability, making it perfect for gamers, creators, and system builders seeking dependable power and future-proof compatibility.
Features
Seasonic 850W Focus GX-850 V4 Fully-Modular 80 PLUS Gold ATX3.1/PCIe 5.1 PSU
Following the well-established legacy of the Seasonic FOCUS Series, the FOCUS GX 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 x 6 cable, and our new OptiSink technology. These units are designed to be perfect allies in powering the latest high-power graphics cards and processors available on the market.
Specifications
General Data
| Model Number |
FOCUS-GX-BLACK-850V4 |
| Colour |
Black |
| 80PLUS ® |
Gold |
| Cybenetics Efficiency Level |
TBA |
| Cybenetics Noise Level |
TBA |
| Form Factor |
ATX / EPS |
| Voltage |
100 V - 240 V |
| Current |
11 - 5.5 A |
| Frequency |
50 Hz - 60 Hz |
| Warranty |
10 Years |
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 Black 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 |
CB, CCC, CE, cTUVus, EAC, TUV, BSMI, FCC |
| Environmental Compliance |
Energy Star, ErP Lot 6, REACH, RoHS, WEEE |
Power Output
| Rail |
+3.3 V |
+5 V |
+12 V |
-12 V |
+5 VSB |
| Maximum Power |
20 A |
20 A |
70 A |
0.3 A |
3 A |
| Maximum Power |
100 W |
100 W |
840 W |
3.6 W |
15 W |
| Total Continuous Power |
850 W |
850 W |
850 W |
850 W |
850 W |
Backed by a 10 year Seasonic warranty.
