KHACHIMO W510 W520 300W power supply DPS-300AB-56 A

300W ATX Power Supply

The KHACHIMO W510 W520 unit delivers 300 watts of continuous power through a standard ATX form factor. It suits office desktops, small-form-factor builds and basic home systems that require reliable energy delivery without excess capacity. The 80 PLUS Gold certification ensures high efficiency across typical workloads, reducing electricity draw and heat output. This supply fits directly into chassis designed for ATX power units.

Upgrade from Lower-Efficiency Units

Replacing an older bronze-rated or uncertified power supply brings measurable gains in efficiency and acoustic comfort. The resonant LLC topology with DC-to-DC conversion provides cleaner voltage regulation, which benefits modern components sensitive to ripple. The jump is worth it when the existing unit struggles with Modern Standby sleep states or exhibits coil whine under light loads. Systems lacking zero-fan capability gain silent operation at idle.

Sustained Load Behaviour

Under continuous demand the Gold-rated platform maintains its efficiency targets, keeping internal temperatures lower than less certified designs. The cooling fan remains off during low and medium loads thanks to the zero RPM mode, activating only when thermal thresholds require active airflow. Resonant LLC operation minimises coil whine even when the unit runs for extended periods. Modern Standby compatibility ensures the supply enters and exits deep sleep states cleanly during prolonged idle intervals.