Cooler Master GX III Gold 650W ATX 3.0 Power Supply

The Cooler Master GX III Gold 650W delivers reliable, efficient power for modern gaming and workstation builds. This 80+ Gold certified power supply combines ATX 3.0 compatibility with fully modular cabling, making it an ideal choice for builders who demand both performance and clean cable management.

ATX 3.0 Ready with 12VHPWR Connector

Built for next-generation graphics cards, this PSU includes native ATX 3.0 support and a 90-degree 12+4pin (12VHPWR) PCIe 5.0 connector. This durable connector delivers up to 600W directly to your GPU with improved electrical durability and enhanced safety features, eliminating the need for adapters with modern high-performance graphics cards.

Fully Modular Design for Clean Builds

Every cable detaches from the unit, allowing you to use only the connections you need. This reduces cable clutter inside your case, improves airflow around components, and creates a cleaner aesthetic. The modular design also simplifies installation and future upgrades.

80+ Gold Efficiency with Titanium-Level Performance

Certified 80+ Gold with up to 90% efficiency at typical loads, this PSU achieves Titanium-level efficiency at light loads during 115V testing. This translates to lower electricity costs, reduced heat output, and quieter operation during everyday computing tasks.

Advanced Thermal Management

The GX III Gold features an anodic-coated heat sink that maintains temperatures 5°C lower than traditional heat sinks. Combined with a 120mm Hydro Dynamic Bearing fan, the cooling system operates quietly while extending component lifespan. The streamlined internal design optimizes airflow throughout the unit.

Comprehensive Protection Suite

Your components stay protected with OVP (Over Voltage Protection), OPP (Over Power Protection), OCP (Over Current Protection), OTP (Over Temperature Protection), SCP (Short Circuit Protection), UVP (Under Voltage Protection), plus surge and inrush protection. These safeguards monitor power delivery continuously to prevent damage to your system.

Extensive Connectivity

The GX III 650W provides versatile connectivity: 1x ATX 24-pin, 1x EPS 4+4 pin, 1x EPS 8-pin, 8x SATA, 4x Peripheral 4-pin, 2x PCIe 6+2 pin, and 1x 12VHPWR connector. This configuration supports multiple storage drives, RGB lighting, and powerful graphics card configurations.

Built to Last

Backed by a 10-year warranty and rated for 100,000 hours MTBF, this power supply is engineered for long-term reliability. The compact 160 x 150 x 86mm form factor fits standard ATX cases while the universal 100-240V AC input ensures global compatibility.

The Cooler Master GX III Gold 650W combines modern standards, efficient operation, and reliable performance in a fully modular package designed for contemporary PC builds.