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Compact 1U ATX power supply in matte black metal housing with rear fan grille and cable bundle

KHACHIMO

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

SKU CH-9JWY-4VBK6

A small 300 W 1U ATX unit with 80 PLUS Gold efficiency, zero-RPM fan mode and Modern Standby support

  • TypeATX
  • Modern Standby compatible for extremely fast wake-from-sleep times
  • 80 PLUS Gold certified for high efficiency and lower power consumption
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent operation
  • Resonant LLC topology with DC-to-DC conversion delivers clean, consistent power
  • ATX form factor fits standard 1U server and workstation chassis

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.

Highlights

  • Modern Standby compatible for extremely fast wake-from-sleep times
  • 80 PLUS Gold certified for high efficiency and lower power consumption
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent operation
  • Resonant LLC topology with DC-to-DC conversion delivers clean, consistent power
  • ATX form factor fits standard 1U server and workstation chassis

Specifications

TypeATX

Questions about this item

Which capacity should I choose for a compact 1U build?

The 300 W rating is designed for small-form-factor systems that need reliable ATX power in a 1U chassis.

What does the 80 PLUS Gold rating mean in daily use?

It certifies high-efficiency operation, which lowers power draw, reduces heat output and keeps fan noise down.

How does the ATX form factor limit what I can install?

As an ATX unit it follows the standard connector layout, so it fits any chassis and motherboard designed for ATX power supplies.

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