Power Supply Seasonic GX-750 CORE GX ATX SRP-CGX751-A5A32SF 80 Plus Gold 750W

Seasonic GX-750 CORE V2 GX 750W ATX 3.1 80+ Gold Power Supply

Seasonic's refreshed CORE GX V2 line brings a 750-watt unit into the ATX 3.1 and PCIe 5.1 era while keeping a sensible value-to-performance balance. It is fully modular, carries an 80 PLUS Gold rating and targets system builders and enthusiasts who want steady, quiet power delivery.

Power & efficiency

The supply delivers a continuous 750 watts on a single +12V rail, which simplifies feeding a power-hungry CPU and graphics card from one source. Its 80 PLUS Gold certification keeps efficiency high across the load range, so less energy is wasted as heat and running costs stay lower. Full ATX 3.1 compliance lets it absorb the brief power excursions typical of current-generation components.

Cables & connectors

The fully modular design means you attach only the cables you actually need, keeping the build tidy and airflow unobstructed. A native 12V-2x6 cable is engineered for PCIe 5.1 graphics cards and supports up to 600 watts, making it a fit for NVIDIA RTX 40 and RTX 50 boards. For older cards, an adapter from 12V-2x6 to two PCIe 8-pin connectors is included, so you can upgrade the supply without replacing the GPU.

Reliability & cooling

A 120 mm fan on a Hydro Dynamic Bearing handles cooling and works alongside Seasonic's Smart and Silent Fan Control to balance temperature against noise. Under light loads the fan spins slowly or stops, keeping the system quiet, while heavier loads ramp it up to maintain stability.

• Brand: Seasonic
• Output: 750 W continuous
• Efficiency: 80 PLUS Gold
• Form factor: ATX, fully modular
• Standards: ATX 3.1 and PCIe 5.1
• GPU connector: native 12V-2x6 up to 600 W plus 2x PCIe 8-pin adapter
• Cooling: 120 mm HDB fan with Smart and Silent Fan Control