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Silver 2U rackmount power supply unit with rear fan grille and power socket

KHACHIMO

KHACHIMO 2U 400W 500W SD-3500U SD-3400U power supply

SKU CH-JJCP-PDSB7

2U ATX power supply rated 400W with 500W peak, 80 PLUS Gold efficiency, Modern Standby support and a zero-RPM fan mode for silent low-load operation

  • TypeATX
  • Modern Standby support for fast wake and better low-load efficiency
  • 80 PLUS Gold certified for lower power draw and cooler running
  • Zero RPM fan mode keeps operation silent at low and medium loads
  • Resonant LLC topology with DC-to-DC conversion delivers clean power and reduces coil whine
  • 2U form factor rated 400 W continuous with 500 W peak capacity

2U 400W ATX power supply

The KHACHIMO 2U unit delivers a continuous 400W output with a 500W peak rating in an ATX form factor. It targets system builders who need a compact, gold-efficiency supply for rack-mount or low-profile chassis. Modern Standby compatibility ensures rapid wake-from-sleep behaviour for always-on workloads.

Build integration and space savings

The 2U height fits standard rackmount enclosures and slim tower cases where full-height units cannot be installed. ATX connector layout matches mainstream motherboards without adapters. Resonant LLC topology with DC-to-DC conversion provides stable rails for modern sleep states while freeing internal volume for additional drives or expansion cards.

Bundled efficiency and acoustic features

80 PLUS Gold certification reduces waste heat and lowers overall power draw under typical loads. Zero RPM fan mode stops the fan completely at low and medium loads, eliminating audible noise during idle or light tasks. The combination of gold-rated efficiency and semi-passive cooling cuts both electricity cost and acoustic footprint.

Pluspunten

  • Modern Standby support for fast wake and better low-load efficiency
  • 80 PLUS Gold certified for lower power draw and cooler running
  • Zero RPM fan mode keeps operation silent at low and medium loads
  • Resonant LLC topology with DC-to-DC conversion delivers clean power and reduces coil whine
  • 2U form factor rated 400 W continuous with 500 W peak capacity

Specificaties

TypeATX

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How does the 80 PLUS Gold rating affect sustained 400W loads?

The 80 PLUS Gold certification means the unit runs at high efficiency, lowering power draw, heat output and fan noise during continuous 400W operation.

Does the Zero RPM fan mode stay active under all-day medium loads?

At low and medium loads the cooling fan switches off entirely, giving near-silent operation even during extended use.

What motherboard power connector does the ATX-type SD-3500U require?

The unit follows the ATX form factor, so it connects to a standard 24-pin motherboard socket and matching CPU/EPS cables.

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