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Cooler Master GX III 650W - power supply, 80 Plus Gold
Manufacturer: COOLER MASTER
ID: MPX-6503-AFAG-BEU
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| Ports & interfaces | |
| ATX Power connector (24-pin) | ![]() |
| Motherboard power connector | 24-pin ATX |
| Number of SATA power connectors | 8 |
| Peripheral (Molex) power connectors (4-pin) | 4 |
| EPS power connector (8-pin) | ![]() |
| PCI Express power connectors (6+2 pin) | 2 |
| Cabling type | Modular |
| Motherboard power cable length | 61 cm |
| SATA power cable length | 120,500 mm |
| Peripheral (Molex) power cable length | 120,500 mm |
| PCI Express power cable length | 55 cm |
| EPS power connector (4+4 pin) | ![]() |
| Weight & dimensions | |
| Weight | 2.42 kg |
| Height | 86 mm |
| Width | 150 mm |
| Depth | 160 mm |
| Energy management | |
| Input current | 8 - 4 A |
| Nominal power | 650 W |
| Efficiency | 90% |
| Hold time | 16 ms |
| Power protection features | Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage |
| Power Factor Correction (PFC) type | Active |
| Combined power (+3.3V) | 120 W |
| Combined power (+12V) | 649.2 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) | 54.1 A |
| Max output current (+5V) | 20 A |
| Max output current (-12V) | 0.3 A |
| Max output current (+5Vsb) | 3 A |
| AC input frequency | 50/60 Hz |
| AC input voltage | 100 - 240 V |
| Total power | 650 W |
| Operational conditions | |
| Operating temperature (T-T) | 0 - 50 °C |
| Packaging data | |
| Package weight | 2.79 kg |
| Package depth | 320 mm |
| Package height | 125 mm |
| Package width | 195 mm |
| Package type | Box |
| Certificates | |
| 80 PLUS certification | 80 PLUS Gold |
| Design | |
| Product colour | Black |
| Number of fans | 1 fan(s) |
| On/off switch | ![]() |
| Cooling type | Active |
| Fan diameter | 12 cm |
| Fan speed | 0 - 2000 RPM |
| Performance | |
| Mean time between failures (MTBF) | 100000 h |
| Purpose | PC |
| Bearing technology | HDB |
| ATX version | 3.0 |
| Power supply unit (PSU) form factor | ATX |
| EAN | 4719512135761 |
STRENGTH IN ELEGANCE
Cooler Master presents the GX III Gold featuring exceptional efficiency, low noise output, and superb reliability.
Innovative, streamlined design
The innovative design streamlines the overall aesthetic of the unit and greatly improves airflow.
ATX 3.0 support & a durable 90-degree 12VHPWR cable
Includes ATX 3.0 support and a 90-degree 12+4pin (12VHPWR) PCIe 5.0 connector featuring higher electrical durability, lower temperatures, and improved safety.
Optimized thermal performance
An anodic-coated heat sink keeps average temperatures 5℃ lower than a traditional heat sink for enhanced durability and a prolonged life span.
CERTIFIED EFFICIENCY
An 80 Plus Gold certification ensures more than 90% efficiency at typical loads. This Gold certified unit can also achieve Titanium level efficiency under 20% light load usage in a 115V test.
SILENT FAN PERFORMANCE
WITH A ZERO-RPM MODE
This unit has received a Cybenetics A- noise level certification and includes a smart thermal control mode that defaults to zero spin.
Fully modular cabling
Modular cabling reduces clutter, increases airflow, and improves overall thermal performance.
PSU calculator
Need help choosing the right power supply for your system?
Try out our comprehensive and easy-to-use PSU calculator.
Cooler Master presents the GX III Gold featuring exceptional efficiency, low noise output, and superb reliability.
Innovative, streamlined design
The innovative design streamlines the overall aesthetic of the unit and greatly improves airflow.
ATX 3.0 support & a durable 90-degree 12VHPWR cable
Includes ATX 3.0 support and a 90-degree 12+4pin (12VHPWR) PCIe 5.0 connector featuring higher electrical durability, lower temperatures, and improved safety.
Optimized thermal performance
An anodic-coated heat sink keeps average temperatures 5℃ lower than a traditional heat sink for enhanced durability and a prolonged life span.
CERTIFIED EFFICIENCY
An 80 Plus Gold certification ensures more than 90% efficiency at typical loads. This Gold certified unit can also achieve Titanium level efficiency under 20% light load usage in a 115V test.
SILENT FAN PERFORMANCE
WITH A ZERO-RPM MODE
This unit has received a Cybenetics A- noise level certification and includes a smart thermal control mode that defaults to zero spin.
Fully modular cabling
Modular cabling reduces clutter, increases airflow, and improves overall thermal performance.
PSU calculator
Need help choosing the right power supply for your system?
Try out our comprehensive and easy-to-use PSU calculator.
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The above technical details are for reference only and may change without notice. We reserve the right to correct printing errors and use illustrations for guidance. Some text may be auto-generated or machine-translated, which could lead to inaccuracies.

