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Compact 1U ATX power supply unit with matte metal casing and rear fan grille

KHACHIMO

KHACHIMO Samll 1U ENP-7025B 400W ATX Gold power supply

SKU CH-SRWM-BWT8S

A 1U 400 W ATX Gold unit with Zero RPM fan, Modern Standby and LLC DC-DC topology for compact builds

  • TypeATX
  • 80 PLUS Gold certification cuts energy use and heat
  • Zero RPM fan mode keeps the unit silent under light loads
  • Resonant LLC with DC-to-DC delivers clean power and reduces coil whine
  • Modern Standby support enables faster wake times and efficient sleep
  • Compact 1U ATX form factor fits space-constrained builds

Compact 1U ATX design

This KHACHIMO unit fits the ENP-7025B form factor and delivers a rated 400W output in a 1U height. It suits small-chassis builds such as the K39, K35, S3, R47, R44, M41, A35, AS-A4, G5 and BC platforms that require an ATX power source within tight vertical clearance.

400W Gold efficiency headroom

The 80 PLUS Gold certification ensures high efficiency across typical loads, reducing waste heat and fan noise. At low and medium loads the Zero RPM mode stops the fan completely, while the resonant LLC topology with DC-to-DC conversion keeps voltage regulation tight; sustained draws near the 400W limit will spin the fan and reduce silent headroom.

Replaces legacy 1U supplies

This supply upgrades older 1U ATX units that lack Modern Standby compatibility, Gold efficiency or a zero-fan mode. The jump is worthwhile when faster wake-from-sleep, lower idle power or near-silent operation at modest loads are priorities for the target chassis.

Points forts

  • 80 PLUS Gold certification cuts energy use and heat
  • Zero RPM fan mode keeps the unit silent under light loads
  • Resonant LLC with DC-to-DC delivers clean power and reduces coil whine
  • Modern Standby support enables faster wake times and efficient sleep
  • Compact 1U ATX form factor fits space-constrained builds

Caractéristiques

TypeATX

Questions sur cet article

Will this 1U unit fit in my existing ATX chassis and deliver 400W to my current components?

The ENP-7025B is an ATX-type 400W supply in a 1U form factor; verify your case accepts 1U depth before installing.

How can I confirm the Zero RPM mode is active after I power on the system?

At low and medium loads the fan stops completely, so silence at idle indicates the feature is working.

What accessories are included with the power supply itself?

Only the ENP-7025B unit is listed; mounting screws and any extra cables must be sourced separately.

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