Cooler Master GX II Gold 850 ATX 3.1
Cooler Master GX II Gold 850 ATX 3.1, 850 W, 100 - 240 V, 50/60 Hz, 5 - 10 A, Active, 120 W
| Date | Price |
|---|---|
| 26 September 2026 | £105 |
| 26 September 2026 | £87.34 |
| 29 September 2026 | £88.43 |
| 2 October 2026 | £81.92 |
| 2 October 2026 | £81.92 |
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Product Information
BUILT TO LAST
The GX II Gold brings a new standard of durability and efficiency to Cooler Master’s lineup of power supply units combined with ATX 3.1 support.
ATX 3.1 Support & a Durable 90-degree 12V-2x6 Cable
Includes ATX 3.1 support and a 90-degree 12V-2x6 PCIe 5.1 connector featuring higher electrical durability, improved safety, and capable of bringing up to 600W to your GPU.
Certified Efficiency
The GX II Gold is certified to achieve more than 90% efficiency at typical loads.
Silent Fan Performance with a ZERO-RPM Mode
A zero-RPM default mode automatically turns the fan on when your PC reaches a specific temperature.
Separated Thermal Technologies
Separated thermal technologies provide improved thermal performance and a large, high-quality Japanese capacitor features reduced ripple noise and enhanced reliability.
Fully Modular Cabling
Modular cabling reduces clutter, increases airflow, and improves overall thermal performance.
Product
- Name
- Cooler Master GX II Gold 850 ATX 3.1
- Category
- Power Supply Units
- Brand
- Cooler Master
Power
- Total power
- 850 W
- AC input voltage
- 100 - 240 V
- AC input frequency
- 50/60 Hz
- Input current
- 5 - 10 A
- Power Factor Correction (PFC) type
- Active
- Combined power (+3.3V)
- 120 W
- Combined power (+12V)
- 849.6 W
- Combined power (+5V)
- 120 W
- Combined power (-12V)
- 3.6 W
- Combined power (+5Vsb)
- 15 W
- Max output current (+3.3V)
- 20 A
- Max output current (+12V)
- 70.8 A
- Max output current (+5V)
- 20 A
- Max output current (-12V)
- 0.3 A
- Max output current (+5Vsb)
- 3 A
- Hold time
- 16 ms
- Efficiency
- 90%
- Power Good signal delay range
- 100 - 150 ms
- Power protection features
- Over current, Over power, Over voltage, Overheating, Short circuit, Surge & inrush, Under voltage
Operational conditions
- Operating temperature (T-T)
- 0 - 40 °C
Weight & dimensions
- Width
- 150 mm
- Depth
- 160 mm
- Height
- 86 mm
- Weight
- 2.61 kg
Ports & interfaces
- Motherboard power connector
- 24-pin ATX
- Peripheral (Molex) power connectors (4-pin)
- 2
- Motherboard power cable length
- 55 cm
- Number of SATA power connectors
- 6
- SATA power cable length
- 500,620,740,860 mm
- Peripheral (Molex) power cable length
- 740,620,500,860 mm
- EPS power connector (8-pin)
- Yes
- EPS power connector (4+4 pin)
- Yes
- PCI Express power connectors (6+2 pin)
- 4
- PCI Express power connectors (12+4 pin)
- 1
- PCI Express power connectors (12+4 pin) cable length
- 650 mm
- PCI Express power cable length
- 62 cm
- Cabling type
- Fully-Modular
Packaging data
- Package width
- 195 mm
- Package depth
- 320 mm
- Package height
- 125 mm
- Package weight
- 3 kg
Other features
- EPS cable length
- 60 cm
Performance
- Purpose
- PC/Server
- Power supply unit (PSU) form factor
- ATX
- 80 PLUS certification
- 80 PLUS Gold
- ATX version
- 3.1
- Bearing technology
- HDB
- Mean time between failures (MTBF)
- 100000 h
Design
- Product colour
- Black
- Cooling type
- Active
- Fan diameter
- 12 cm
- Number of fans
- 1 fan(s)
- Fan speed
- 0 - 2500 RPM
Logistics data
- Master (outer) cases per pallet
- 24 pc(s)
- Master (outer) case width
- 335 mm
- Master (outer) case length
- 520 mm
- Master (outer) case height
- 231 mm
- Products per master (outer) case
- 4 pc(s)
Certificates
- Compliance certificates
- BIS, BSMI, CCC, CE, China Compulsory Certification (CCC), EAC, Federal Communications Commission (FCC), KC, RCM, RoHS, UKCA, cTUVus
- Certification
- ErP 2014 Lot 3
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