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Silver 1U rack power supply with rear fan grille

KHACHIMO

KHACHIMO SS-400L1U 80 PLUS Gold 400W 1U power supply

SKU CH-5MNV-XR7N4

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

  • TypeATX
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Zero RPM fan mode keeps the unit silent at low loads
  • Modern Standby support enables rapid wake from sleep
  • Resonant LLC with DC-to-DC conversion delivers clean, stable power
  • 400 W ATX output in a compact 1U form factor

1U Gold 400W Server Supply

The KHACHIMO SS-400L1U is a new 1U ATX power supply rated at 400 W with 80 PLUS Gold certification. It targets system builders assembling rack-mount servers, compact workstations or dense compute nodes where space and efficiency are primary concerns. Modern Standby support ensures rapid wake-from-sleep transitions for always-on workloads.

Upgrade From Lower-Rated Or Bulkier Units

Replacing a non-Gold unit or a taller supply cuts heat output and reclaims vertical chassis space, making the jump worthwhile when density or thermal headroom are limiting factors. The Resonant LLC topology with DC-to-DC conversion delivers cleaner power rails and reduces coil whine compared to older group-regulated designs. Zero RPM fan mode eliminates idle noise that lesser units cannot silence.

Fits 1U Racks With Modern Standby Boards

The 1U form factor slides into standard short-depth racks without adapter brackets, while ATX connectors serve mainstream server boards. Modern Standby compatibility frees the platform to enter deeper sleep states without losing network presence. Builders needing redundant supplies, higher wattage or non-ATX pinouts should look elsewhere.

Points forts

  • 80 PLUS Gold efficiency cuts power draw and heat
  • Zero RPM fan mode keeps the unit silent at low loads
  • Modern Standby support enables rapid wake from sleep
  • Resonant LLC with DC-to-DC conversion delivers clean, stable power
  • 400 W ATX output in a compact 1U form factor

Caractéristiques

TypeATX

Questions sur cet article

What depth clearance does the 1U 400W unit need to fit in a rack chassis?

The 1U form factor fits standard 1U rack bays; verify your chassis depth before ordering.

Which cables must be connected during installation to enable Modern Standby fast wake?

Connect the 24-pin ATX, 4/8-pin CPU and any required PCIe cables; the PSU then supports Modern Standby automatically.

How often should the fan be cleaned to keep Zero RPM mode effective?

Inspect the intake every six to twelve months and remove dust with compressed air so the fan can stay off at low loads.

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