
The newly upgraded FOCUS PX and GX series are the successors to the FOCUS PLUS Series, which became an instant top seller in the power supply market after its launch in 2017. In 2019, Seasonic engineers have made improvements to the popular series such as removing the inline capacitors on the supplied cables. Besides the small change in the series naming, the PSU housing and its packaging are also updated to be in line with the concept of the OneSeasonic Initiative.
S3FC - Fanless until 30 % load
The industry’s first, Seasonic patented, advanced three-phased thermal control achieves optimal between silence and cooling. This Hybrid Silent Fan Control functions in three operational stages: Fanless Mode, Silent Mode, and Cooling Mode.
Fluid Dynamic Fan Bearing
High performance Fluid Dynamic Bearing (FDB) fans are designed to take advantage of the impact absorbance effects of oil. They are extremely reliable and generate considerably less operating noise and heat than ball bearing fans. The lubrication of the bearing surface reduces friction and vibration and therefore lowers overall power consumption. Due to the effortless, quieter rotations and its robust construction, this reliable fan technology also greatly increases the lifespan of the fan.
When the fan shaft rotates, high pressure oil drifts along the grooves of the bearing sleeve to generate a thin layer of lubrication between the bearing faces.
As the speed increases, so does dynamic oil pressure and the shaft is lifted from the bearing to create smooth, effortless rotations. The herringbone shape of the groves helps to efficiently channel the lubricant and avert leakage.
Power
Total power: 850 W
AC input voltage: 100 - 240 V
AC input frequency: 50/60 Hz
Input current: 12 - 6 A
Combined power (+3.3V): 100 W
Combined power (+12V): 840 W
Combined power (+5V): 100 W
Combined power (-12V): 3.6 W
Combined power (+5Vsb): 15 W
Max output current (+3.3V): 20 A
Max output current (+12V): 70 A
Max output current (+5V): 20 A
Max output current (-12V): 0.3 A
Max output current (+5Vsb): 3 A
Power protection features: Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage
Ports & interfaces
Motherboard power connector: 20+4 pin ATX
Motherboard power cable length: 61 cm
SATA power cable length: 450,810,860 mm
Peripheral (Molex) power cable length: 470,690 mm
PCI Express power connectors (6+2 pin): 2
PCI Express power cable length: 75 cm
Feature: CPU power connector (4+4 pin)
CPU power cable length: 65 cm
Feature: PCI Express connector
Cabling type: Fully-Modular
Performance
80 PLUS certification: 80 PLUS Gold
Purpose: PC
Power supply unit (PSU) form factor: ATX
ATX version: 3.0
Feature: Silent mode
Bearing technology: FDB
Mean time between failures (MTBF): 100000 h
Design
Product colour: Black
Cooling type: Active
Fan diameter: 12 cm
Number of fans: 1 fan(s)
Feature: On/off switch
Operational conditions
Operating temperature (T-T): 0 - 50 °C
Packaging content
Cables included: AC, CPU, PCIe, Peripheral (Molex), Peripheral (Molex) to SATA 3.3, SATA
Feature: Cable tie(s) included
Certificates
Compliance certificates: BSMI, CB, CCC, CE, EAC, REACH, RoHS, cTUVus, WEEE
Certification: cTUVus, TUV, CB, CCC, BSMI, EAC, CE, Energy Star, RoHS, WEEE, ErP Lot 6, REACH
Weight & dimensions
Width: 150 mm
Depth: 140 mm
Height: 86 mm
Technical details
Feature: Sustainability compliance
Sustainability certificates: ENERGY STAR, ErP
Logistics data
Warranty period: 10 year(s)
Seasonic Focus GX. Total power: 850 W, AC input voltage: 100 - 240 V, AC input frequency: 50/60 Hz. Motherboard power connector: 20+4 pin ATX, Motherboard power cable length: 61 cm, SATA power cable length: 450,810,860 mm. Purpose: PC, Power supply unit (PSU) form factor: ATX, 80 PLUS certification: 80 PLUS Gold. Product colour: Black, Cooling type: Active, Fan diameter: 12 cm. Cables included: AC, CPU, PCIe, Peripheral (Molex), Peripheral (Molex) to SATA 3.3, SATA
Sea Sonic
MBR CODE - FOCUS-GX-850-V4
EAN - 4711173878438