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Rectangular 2U server PSU in matte black metal with rear fan grille and power socket

KHACHIMO

KHACHIMO D2U-6300F 300W 80 PLUS Gold power supply

SKU CH-67DN-G5SEF

A 300W ATX power supply with 80 PLUS Gold efficiency, zero-RPM fan mode, resonant LLC topology and Modern Standby support

  • TypeATX
  • Modern Standby compatible for extremely fast wake-from-sleep times
  • 80 PLUS Gold certified for high efficiency and lower power consumption
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent operation
  • Resonant LLC topology with DC-to-DC conversion delivers clean power and reduces coil whine
  • 300W ATX power supply designed for 2U server and workstation chassis

300W 80 PLUS Gold 2U Server PSU

The KHACHIMO D2U-6300F is a 300 watt ATX power supply designed for 2U rackmount chassis. It targets system integrators and IT professionals who need reliable, efficient power delivery in compact server or workstation builds. The unit carries 80 PLUS Gold certification for high efficiency across typical load ranges.

Modern Standby and Zero RPM Fan Mode

This supply supports Modern Standby for extremely fast wake-from-sleep times and improved low-load efficiency. At low and medium loads the cooling fan stops completely, enabling near-silent operation in noise-sensitive environments. Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and reduces coil whine while supporting more energy efficient sleep states.

Replaces Less Efficient 2U Units

The D2U-6300F upgrades older 2U power supplies that lack Gold-rated efficiency, Modern Standby support or semi-passive cooling. The jump is worth it when deploying new server nodes that demand lower power consumption, quieter operation and faster sleep-state transitions. It is not suited for full-tower ATX builds requiring higher wattage or standard PS/2 form factor dimensions.

Highlights

  • Modern Standby compatible for extremely fast wake-from-sleep times
  • 80 PLUS Gold certified for high efficiency and lower power consumption
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent operation
  • Resonant LLC topology with DC-to-DC conversion delivers clean power and reduces coil whine
  • 300W ATX power supply designed for 2U server and workstation chassis

Specifications

TypeATX

Questions about this item

How long can the 300W output run before thermal limits trigger?

The 80 PLUS Gold efficiency keeps waste heat low, so the 300W rating is sustainable under normal airflow without hitting thermal shutdown.

What is the fan noise level during continuous 24-hour operation?

Zero RPM Fan Mode stops the fan entirely at low and medium loads, giving near-silent running; under heavier sustained load the fan spins up but the LLC topology reduces coil whine.

Which motherboard connector must my board provide for Modern Standby support?

A standard ATX 24-pin connector is required; the supply is ATX type and Modern Standby compatible, so any board with that header will enable the fast wake and low-load efficiency features.

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