Seasonic CORE GX-650 ATX3 650 W power supply

Capacity and headroom

This 650 W unit delivers stable power for mid-range gaming PCs and workstations with a single modern GPU. The 80 PLUS Gold certification means high efficiency across typical loads, reducing waste heat. Headroom remains comfortable for one graphics card and several drives. Builds that require dual GPUs or extreme overclocking will exceed the rated output.

ATX 3 and 16-Pin PCIe Gen 5 connector

The supply includes the new 12V-2x6 cable required by current-generation graphics cards. Full modularity lets you attach only the cables your build needs, keeping the interior tidy. The 140 mm housing fits most standard ATX cases without clearance issues. Older platforms that lack the 16-pin socket will need an adapter.

120 mm Hydro Dynamic Bearing fan

The HDB fan runs quietly at low and medium loads thanks to its fluid-bearing design. Under sustained heavy draw the fan speed increases to maintain safe temperatures, but acoustic output stays moderate. Gold-rated efficiency keeps internal heat lower than bronze-class units, helping the fan stay at slower speeds longer.