Cooler Master GX II 750 ATX
£81.87 inc VAT
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About This Item
- ATX 3.1 support with 90-degree 12V-2×6 PCIe 5.1 connector
- 750 W total power with 90% efficiency rating
- Zero-RPM fan mode for silent operation
- Active PFC and comprehensive protection features
- Japanese capacitors for enhanced reliability
- Fully modular cabling for improved airflow
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Cooler Master GX II Gold 750 | 80 PLUS Gold ATX 3.1 PSU
The Cooler Master GX II Gold 750 ATX 3.1 delivers 750 W of reliable power with ATX 3.1 compliance, making it ideal for high-performance gaming and workstation PCs that demand stable, efficient power delivery.
Key Specifications
| Metric | Spec |
|---|---|
| Power Output | 750 W |
| Efficiency Certification | 80 PLUS Gold |
| ATX Version | 3.1 |
| Form Factor | ATX |
| Cooling | Active (120 mm HDB fan) |
ATX 3.1 Ready for Modern Components
This PSU supports ATX 3.1 specifications, including a 90-degree 12V-2×6 PCIe 5.1 connector that can deliver up to 600 W to your GPU. The higher electrical durability and improved safety make it suitable for the latest graphics cards and components.
Certified Efficiency for Lower Energy Costs
With 80 PLUS Gold certification, the GX II Gold achieves over 90% efficiency at typical loads. This means less wasted energy, reduced heat output, and lower electricity bills compared to lower-efficiency units.
Silent Operation with Zero-RPM Mode
The 120 mm HDB fan features a default zero-RPM mode that keeps the fan off during light loads or when temperatures are low. The fan only activates when your system needs active cooling, ensuring near-silent operation during everyday use.
Enhanced Reliability with Japanese Capacitors
Equipped with high-quality Japanese capacitors, this PSU delivers reduced ripple noise and enhanced long-term reliability. The separated thermal technologies improve heat management for consistent performance under load.
Fully Modular Design for Clean Builds
All cables are fully modular, allowing you to connect only what you need. This reduces cable clutter, improves airflow within your case, and makes installation and upgrades much simpler.
Box Contents
- Cooler Master GX II Gold 750 PSU
- Modular cables (various lengths)
- Mounting screws
- User manual
Check Before You Buy
- Confirm your case has sufficient space (150 x 160 x 86 mm)
- Verify your GPU requires 750 W or less total system power
- Check if you need additional PCIe power connectors for your components
- Confirm your motherboard has the necessary power connectors
Frequently Asked Questions
Is this PSU compatible with PCIe 5.0 graphics cards?
What does 80 PLUS Gold certification mean?
Does this PSU have over-current protection?
Is the fan always running?
What are the dimensions of this PSU?
Our verdict
The Cooler Master GX II Gold 750 ATX 3.1 is an excellent choice for gamers and professionals building systems with modern, power-hungry components. Its ATX 3.1 compliance, 80 PLUS Gold efficiency, and fully modular design offer both future-proofing and practical benefits for clean, reliable builds. Covered by the applicable manufacturer warranty.
| Certification | ErP 2014 Lot 3 |
|---|---|
| Product colour | Black |
| Fan diameter | 12 cm |
| Number of fans | 1 fan(s) |
| Fan speed | 0 – 2500 RPM |
| Cooling type | Active |
| Total power | 750 W |
| Power Good signal delay range | 100 – 150 ms |
| 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 +5V | 120 W |
| Combined power -12V | 3.6 W |
| Combined power +5Vsb | 15 W |
| Max output current +3.3V | 20 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, Surge & inrush, Under voltage |
| Hold time | 16 ms |
| Efficiency | 90% |
| Motherboard power cable length | 55 cm |
| SATA power cable length | 500,620,740,860 mm |
| Peripheral Molex power cable length | 500,620,740,860 mm |
| PCI Express power cable length | 62 cm |
| Motherboard power connector | 24-pin ATX |
| Number of SATA power connectors | 6 |
| Peripheral Molex power connectors 4-pin | 2 |
| EPS power connector 8-pin | Yes |
| PCI Express power connectors 6+2 pin | 4 |
| EPS power connector 4+4 pin | Yes |
| PCI Express power connectors 12+4 pin | 1 |
| PCI Express power connectors 12+4 pin cable length | 650 mm |
| Purpose | PC/Server |
| ATX version | 3.1 |
| Mean time between failures MTBF | 100000 h |
| Bearing technology | HDB |
| Operating temperature T-T | 0 – 40 °C |
| Width | 150 mm |
| Depth | 160 mm |
| Height | 86 mm |
| Weight | 2.58 kg |
| Package depth | 320 mm |
| Package width | 195 mm |
| Package height | 125 mm |
| Package weight | 2.97 kg |
| Compliance certificates | BIS, BSMI, CCC, CE, China Compulsory Certification (CCC), EAC, Federal Communications Commission (FCC), KC, RCM, RoHS, UKCA, cTUVus |
| 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) |
| EPS cable length | 60 cm |
| Distributor SKUs | MPX7503AFAG2EB |
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