Cooler Master MWE Gold 850 V3 ATX 3.1

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Cooler Master MWE Gold 850 V3 ATX 3.1
The Cooler Master GX II Gold 850 power supply delivers stable power for desktop PC components with a total output of 850W. It uses a fully modular cabling system, which simplifies wire management inside the case and promotes efficient airflow. The 80 PLUS Gold certification confirms over 90% efficiency at typical loads, helping to reduce both heat loss and running costs. For safe operation, it integrates a comprehensive set of protections, including overvoltage, undervoltage, overcurrent, overload, short circuit, and overheat protection. The power supply meets the modern ATX 3.1 standard and ensures reliable performance in demanding builds.
Key technologies of the Cooler Master GX II Gold 850 power supply
- Total power output of 850W
- 80 PLUS Gold certification for 90% efficiency
- Fully modular cabling for easy component installation
- Support for the ATX 3.1 standard
- Zero-RPM fan mode
- Includes a 12V-2x6 connector to power PCIe 5.0 components
- Protection suite includes OVP, UVP, OCP, OPP, SCP, OTP, and SIP
Choosing a power supply
When selecting a suitable PC power supply, the key parameter, besides the format, is its power output. This indicates the maximum number of watts the power supply can continuously deliver to the computer's components. It is a good idea to use a web-based calculator to work out the optimal power requirement based on your chosen components.
Ready for ATX 3.0 and PCIe 5.0
This 850W power supply fully supports the ATX 3.0 specification, which enables it to handle the high transient power spikes of modern graphics cards. It includes a 90° 12V-2x6 connector that powers PCIe 5.0 standard components. This connector has higher electrical durability, and its design with lower operating temperatures contributes to safer operation. The right-angle design also reduces mechanical stress on the cable. The fully modular cabling system minimises excess wires and improves the overall thermal performance of the build.
Efficiency and quiet operation of the Cooler Master GX II Gold 850
The 80 PLUS Gold certification confirms an efficiency exceeding 90% under normal load, reducing the amount of waste heat. Active cooling is handled by a fan with intelligent thermal speed control. Under low loads, the fan remains completely off due to the Zero-RPM mode, keeping noise levels low during light tasks. The fan only activates once a set temperature threshold is exceeded. The internal design uses Japanese capacitors, which reduce current ripple and promote the long-term reliability of components.
Connectors
- 1× ATX 24-pin
- 2× CPU 4+4-pin
- 4× Molex 4-pin
- 3× PCI-E 6+2-pin
- 8× SATA 15-pin
- 1× 12V-2x6 16-pin
Package contents
- Cooler Master GX II Gold 850 power supply
- Mains power cable
- User manual
- 1× ATX 24-pin
- 1× EPS 4+4-pin
- 1× EPS 8-pin
- 2× PCI-E 6+2-pin
- 2× SATA
- 2× Peripheral
- 1× 12VHPWR
80 Plus certification on the European market
The 80 Plus certification was created to objectively assess the efficiency of computer power supplies. This gives users a simple and clear way to compare different models. On the European market (where a 230V voltage is used), there are six levels of 80 Plus certification with set requirements for computer power supplies. Higher energy efficiency primarily means lower energy consumption.
| PC power supply load | Efficiency at 20% load | Efficiency at 50% load | Efficiency at 100% load |
|---|---|---|---|
| 80 PLUS | 82% | 85% | 82% |
| 80 PLUS Bronze | 85% | 88% | 85% |
| 80 PLUS Silver | 87% | 90% | 87% |
| 80 PLUS Gold | 90% | 92% | 89% |
| 80 PLUS Platinum | 92% | 94% | 90% |
| 80 PLUS Titanium | 94% | 96% | 94% |
Specifications
Performance and format
Equipment
Efficiency
Connectors
Cooling system
Specifications can be changed without notice. Images are for illustrative purposes only.

