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Compact 1U 400W ATX switching power supply unit with metallic finish and rear fan grille

KHACHIMO

KHACHIMO FSP 1U 400W Switching Power Supply FSP400-60FGGBA

SKU CH-JZMZ-EHXEP

A compact 1U ATX unit delivering 400 W with 80 PLUS Gold efficiency, Modern Standby support, and a fan that stops at low load

  • TypeATX
  • Modern Standby support enables rapid wake from sleep
  • 80 PLUS Gold certification reduces power draw and heat
  • Zero RPM fan mode stops the fan at low loads
  • Resonant LLC with DC-to-DC conversion delivers clean, stable power
  • 400W output replaces EFA-250 and EFA-300 units

Compact 1U PSU for Server Replacements

This KHACHIMO FSP unit is a 400 W switching power supply built to the ATX form factor in a 1U height. It is intended as a direct replacement for EFA-300 and EFA-250 models in rackmount servers or compact workstations where space is limited.

Suited for Legacy Rack Upgrades

The supply fits builders refreshing older 1U chassis that originally shipped with 250 W or 300 W units and need modern efficiency without changing the mechanical layout. It is not for ATX tower builds that require standard PSU depth or modular cabling, nor for systems demanding more than 400 W of continuous power.

Integrates into Existing 1U Infrastructure

The ATX pinout lets the unit plug into existing motherboards and backplanes in the target chassis, while 80 PLUS Gold certification and Zero RPM fan mode reduce heat and noise in dense racks. Resonant LLC topology with DC-to-DC conversion supports Modern Standby sleep states, freeing administrators from legacy power-management constraints.

Puntos fuertes

  • Modern Standby support enables rapid wake from sleep
  • 80 PLUS Gold certification reduces power draw and heat
  • Zero RPM fan mode stops the fan at low loads
  • Resonant LLC with DC-to-DC conversion delivers clean, stable power
  • 400W output replaces EFA-250 and EFA-300 units

Especificaciones

TypeATX

Preguntas sobre este artículo

Does this 400W ATX power supply need any special motherboard connector to enable Modern Standby fast wake?

It uses standard ATX connectors; Modern Standby works when the motherboard firmware supports the sleep state and the PSU is wired normally.

Will the Zero RPM fan mode stay off if I keep an older GPU that draws steady idle power?

The fan stops at low and medium loads; an older GPU’s idle draw may keep the load above the zero-RPM threshold, so the fan could spin.

How can I confirm the 80 PLUS Gold efficiency is active after installation?

Check that the system enters Modern Standby sleep and wakes quickly, and listen for the fan remaining off during light desktop use.

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