KHACHIMO HK400-92FP 300W 1U ATX Power Supply

Compact 1U ATX power supply

The KHACHIMO HK400-92FP is a 300 W ATX unit built for 1U rackmount and slim chassis where height is limited. It delivers standard ATX voltages in a reduced form factor and carries 80 PLUS Gold certification for high efficiency. Modern Standby compatibility enables extremely fast wake-from-sleep times and better low-load efficiency. Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and reduces coil whine.

Suited for space-constrained builds.

This unit fits builders assembling 1U servers, compact workstations or thin client replacements that require an ATX power source with quiet operation. Zero RPM fan mode stops the fan entirely at low and medium loads for near-silent running. It is not for systems with discrete graphics cards, multi-drive arrays or overclocked CPUs that exceed the 300 W rating. Buyers who need more power headroom or additional PCIe connectors must choose a higher-wattage design.

300 W continuous output is the deciding limit

The single specification that determines fit is the 300 W maximum continuous power rating. Every component in the build — CPU, memory, drives and add-in cards — must stay within this budget. No other figure in the data overrides this constraint. If the total system draw can exceed 300 W, this power supply is not the correct part.