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Compact 1U silver power supply with rear fan and modular cables

KHACHIMO

KHACHIMO FS9030 400W 80+ Gold 1U ATX power supply

SKU CH-FW5J-HFJ19

A 400 W ATX power supply with 80 PLUS Gold efficiency, Zero RPM fan mode and Modern Standby compatibility for quiet, low-power operation

  • TypeATX
  • Faster wake-from-sleep with Modern Standby compatibility
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Fan stops at low loads for silent running
  • LLC resonant plus DC-to-DC topology delivers clean power
  • Compact 1U ATX form factor fits dense builds

1U 400W Gold ATX supply

This 1U form-factor ATX power supply delivers 400W of continuous output with 80 PLUS Gold efficiency. It is built for compact servers and workstations where rack height is limited and reliable power delivery is essential. The unit supports Modern Standby for rapid wake-from-sleep transitions.

Upgrade from standard bronze units

Replacing a lower-efficiency supply with this Gold-certified model reduces power draw, heat output and acoustic noise in always-on systems. The resonant LLC topology with DC-to-DC conversion tightens voltage regulation, making the jump worthwhile when stability under variable loads matters more than raw wattage headroom.

Handles typical 1U server loads

At 400W the unit comfortably powers single-socket platforms with moderate storage arrays and peripheral cards. Headroom narrows when multiple high-draw GPUs or large drive counts are added, so builders planning dense multi-GPU configurations or heavily populated drive bays should verify total system draw against the rated ceiling.

Highlights

  • Faster wake-from-sleep with Modern Standby compatibility
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Fan stops at low loads for silent running
  • LLC resonant plus DC-to-DC topology delivers clean power
  • Compact 1U ATX form factor fits dense builds

Specifications

TypeATX

Questions about this item

What clearance does the 1U form factor require in the rack or chassis?

The 1U height fits standard single-slot racks and shallow enclosures; verify the unit depth against your cabinet rails before mounting.

How do you enable the Zero RPM fan mode during installation?

Connect the 24-pin ATX and 8-pin EPS cables securely; the fan stays off automatically at low and medium loads without BIOS changes.

When should the internal cooling fan be serviced or replaced?

The Zero RPM mode reduces wear at light loads; clean dust from the intake vents annually and replace the fan if bearing noise appears under heavy load.

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