The Seasonic FOCUS GX V4 850W is a premium fully modular ATX 3.1 power supply designed for modern gaming PCs, workstations and high-performance systems. It combines 80 PLUS Gold efficiency with PCIe 5.1 support, native 12V-2×6 connectivity and Seasonic’s OptiSink thermal design. A large 135mm Fluid Dynamic Bearing fan works with Digital Hybrid Fan Control to provide an excellent balance of quiet operation and thermal performance, while the compact 140mm chassis simplifies installation.
Key Features
80 PLUS Gold (90% efficiency at 50% system load).
ATX 3.1 and PCIe 5.1 support.
Native 12V-2×6 connectivity for modern graphics cards.
Fully Modular cable design.
135mm Fluid Dynamic Bearing (FDB) fan.
Digital Hybrid Fan Control with Fanless, Silent and Cooling modes.
Seasonic OptiSink thermal design for improved heat dissipation.
Comprehensive OCP, OPP, OTP, OVP, SCP and UVP protection.
10-year manufacturer’s warranty.
Full Specification
Model:
FOCUS GX V4 850W ATX 3.1
Manufacturer Part Number:
FOCUS-GX-850-V4
Output Power:
850W continuous power
Efficiency:
80 PLUS Gold (90% efficiency at 50% system load)
Voltage Rails:
Single +12V rail
+12V Output:
70A / 840W
ATX Form Factor:
ATX/EPS
ATX Standard:
ATX 3.1
PCIe Standard:
PCIe 5.1
Cabling:
Fully Modular
Connectors:
1 x 20+4-pin ATX
2 x 4+4-pin CPU/EPS
1 x 12V-2×6 (12+4-pin)
3 x 6+2-pin PCIe
8 x SATA
3 x 4-pin Molex
Fan:
135mm Fluid Dynamic Bearing (FDB) fan
Fan Speed Control:
Digital Hybrid Fan Control with Fanless, Silent and Cooling modes
Power Input:
100-240V AC, 50/60Hz
Operating Temperature:
0-50°C
Power Output:
DC outputs: +12V, +5V, +3.3V, -12V and +5VSB
Cable Set:
Individual black cables with braided pattern
Protection:
OCP – Over Current Protection
OPP – Over Power Protection
OTP – Over Temperature Protection
OVP – Over Voltage Protection
SCP – Short Circuit Protection
UVP – Under Voltage Protection
Special Features:
Seasonic OptiSink thermal design, native PCIe 5.1 12V-2×6 connectivity, compact 140mm chassis
Warranty:
10-year manufacturer’s warranty
Dimensions without cable (L x W x H), (mm)
140 x 150 x 86