KHACHIMO NX400 GPS-400DB A 80 PLUS Gold 400W power supply

400 W ATX power supply for modern PCs

The KHACHIMO NX400 GPS-400DB A delivers 400 W of continuous power through a standard ATX form factor, making it suitable for mainstream desktop builds and office workstations. It targets users who want certified efficiency and quiet operation without the cost of higher-wattage units. Builders needing more headroom for multi-GPU setups or extreme overclocking should look elsewhere.

80 PLUS Gold efficiency and DC-to-DC topology

Rated at 80 PLUS Gold, the unit maintains high efficiency across typical loads, reducing waste heat and electricity draw. The resonant LLC design with DC-to-DC conversion provides stable voltage regulation for modern components while supporting low-power sleep states. At sustained loads near the 400 W limit, efficiency remains strong but thermal headroom narrows.

Zero RPM fan mode and Modern Standby support

A semi-passive fan profile stops the fan completely at low and medium loads, delivering near-silent operation during desktop use and media playback. Modern Standby compatibility enables extremely fast wake-from-sleep times and improved low-load efficiency. Under heavier loads the fan spins up to maintain safe temperatures, so audible airflow returns when the system is stressed.