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1U 400W switching power supply unit silver metal enclosure

KHACHIMO

KHACHIMO 1U 400W Switching Power Supply DPS-400AB-12C

SKU CH-NR3M-PEEJZ

A 1U 400W ATX power supply with 80 PLUS Gold efficiency, zero-RPM fan mode and Modern Standby support

  • TypeATX
  • Modern Standby support for near-instant wake from sleep
  • 80 PLUS Gold efficiency reduces power draw and heat output
  • Zero RPM fan mode keeps the unit silent at low loads
  • Resonant LLC topology with DC-to-DC conversion delivers clean, stable power
  • 400W ATX power supply fits standard 1U server chassis

Compact 1U Server Power Supply

The KHACHIMO DPS-400AB-12C is a 400W ATX switching unit built to the 1U form factor. It targets rackmount servers, compact workstations and embedded appliances that require a slim, high-efficiency power source. The Modern Standby compatible design ensures extremely fast wake-from-sleep times and better low-load efficiency.

Integration and Cable Management

The unit mounts in a standard 1U bay and delivers up to 400W through an ATX connector set. Its resonant LLC topology with DC-to-DC conversion provides clean, consistent power to modern components while enabling more energy efficient sleep states. This topology also reduces coil whine for quieter overall system operation.

Thermals, Noise and Efficiency

80 PLUS Gold certification confirms high efficiency operation for lower power consumption, less noise and cooler temperatures. A Zero RPM fan mode stops the cooling fan entirely at low and medium loads, delivering near-silent operation. The combination of efficient conversion and intelligent fan control keeps thermal output minimal during normal use.

Highlights

  • Modern Standby support for near-instant wake from sleep
  • 80 PLUS Gold efficiency reduces power draw and heat output
  • Zero RPM fan mode keeps the unit silent at low loads
  • Resonant LLC topology with DC-to-DC conversion delivers clean, stable power
  • 400W ATX power supply fits standard 1U server chassis

Specifications

TypeATX

Questions about this item

Will the 400 W output hold up during continuous full-load operation?

The unit is rated for 400 W continuous delivery and uses an 80 PLUS Gold certified design that maintains efficiency under sustained use.

How loud and hot does the PSU get when it runs all day?

Zero RPM fan mode stops the fan completely at low and medium loads, while 80 PLUS Gold efficiency keeps waste heat and noise to a minimum.

What motherboard power connector does this ATX unit require to function?

It uses a standard 24-pin ATX main connector plus a 4+4-pin CPU power connector, both native to the PSU.

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