Seasonic Focus GX-850 power supply unit 1000 W 20+4 pin ATX ATX White
Seasonic Focus GX-850, 1000 W, 100 - 240 V, 50/60 Hz, 11 - 5.5 A, 11 A, 5.5 A
| Date | Price |
|---|---|
| 13 May 2026 | £115.63 |
| 13 May 2026 | £115.63 |
| 21 May 2026 | £115.63 |
| 29 May 2026 | £115.63 |
| 29 May 2026 | £115.63 |
Compare Seasonic Focus GX-850 power supply unit 1000 W 20+4 pin ATX ATX White prices UK
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Product Information
FOCUS GX ATX 3.0
Following the well-established legacy of the Seasonic FOCUS Series, the FOCUS GX Series was upgraded to comply with the ATX 3.0 and PCIe 5.0 standards. Offering a complete range of power supplies ranging from 750 W to 1000 W with in a 140 mm depth, these units will be the perfect allies to power the newest high power graphics cards and processors on the market.
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
Optimized heat dissipation at all times
Unsurpassed silent performance in Fanless 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.
Product
- Name
- Seasonic Focus GX-850 power supply unit 1000 W 20+4 pin ATX ATX White
- Category
- Power Supply Units
- Brand
- Seasonic
Power
- Total power
- 1000 W
- AC input voltage
- 100 - 240 V
- AC input frequency
- 50/60 Hz
- Input current
- 11 - 5.5 A
- Maximum input current (@110V)
- 11 A
- Maximum input current (@220V)
- 5.5 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
Operational conditions
- Operating temperature (T-T)
- 0 - 50 °C
Weight & dimensions
- Width
- 150 mm
- Depth
- 140 mm
- Height
- 86 mm
Ports & interfaces
- Motherboard power connector
- 20+4 pin ATX
- Peripheral (Molex) power connectors (4-pin)
- 3
- Motherboard power cable length
- 61 cm
- Number of SATA power connectors
- 2
- SATA power cable length
- 550 mm
- Peripheral (Molex) power cable length
- 690 mm
- PCI Express power connectors (6+2 pin)
- 3
- PCI Express power connectors (12+4 pin)
- 1
- CPU power connector (4+4 pin)
- Yes
- CPU power cable length
- 70 cm
- Cabling type
- Fully-Modular
Packaging data
- Package type
- Box
Performance
- Purpose
- PC
- Power supply unit (PSU) form factor
- ATX
- 80 PLUS certification
- 80 PLUS Gold
- Bearing technology
- FDB
- Mean time between failures (MTBF)
- 100000 h
Design
- Product colour
- White
- Cooling type
- Active
- Fan diameter
- 13.5 cm
- Number of fans
- 1 fan(s)
- On/off switch
- Yes
Logistics data
- Warranty period
- 10 year(s)
Technical details
- Sustainability certificates
- ENERGY STAR
Certificates
- Compliance certificates
- CB, CE, EAC, REACH, RoHS, WEEE, cTUVus
Safety regulation & standards
- Safety
- cTUVus, TUV, CB, CCC, BSMI, EAC, CE
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