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Rectangular ATX power supply unit in matte black metal finish with cooling fan visible on one side

KHACHIMO

KHACHIMO DC48V 250W ATX Power Supply ACE-828T

SKU CH-1E9R-DDAPA

A 250 W ATX power supply with 80 PLUS Gold efficiency, zero-RPM fan mode and Modern Standby support for fast wake times

  • TypeATX
  • Modern Standby compatibility for extremely fast wake-from-sleep times
  • 80 PLUS Gold certified efficiency lowers power consumption and heat
  • 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, consistent power and reduces coil whine
  • DC 48V 250W ATX form factor fits standard chassis and supports efficient sleep states

DC 48 V ATX supply for compact systems

The KHACHIMO ACE-828T is a 250 W ATX power supply that takes a 48 V DC input, making it suitable for small-form-factor PCs, embedded appliances or industrial chassis where AC mains are not available. Its 80 PLUS Gold rating ensures high efficiency across typical loads.

Sustained-load behaviour with LLC and DC-to-DC

A resonant LLC topology paired with DC-to-DC conversion delivers stable voltages during continuous operation while suppressing coil whine. The zero-RPM fan mode keeps the unit silent at low and medium loads, and Modern Standby compatibility enables rapid wake-from-sleep transitions without efficiency penalties.

Replaces external bricks and legacy ATX units

This supply replaces bulky external DC-to-AC inverters or older ATX PSUs that lack DC input and Gold-class efficiency. The upgrade is worthwhile when a build demands native 48 V operation, quiet running under sustained loads, and support for modern low-power sleep states.

Points forts

  • Modern Standby compatibility for extremely fast wake-from-sleep times
  • 80 PLUS Gold certified efficiency lowers power consumption and heat
  • 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, consistent power and reduces coil whine
  • DC 48V 250W ATX form factor fits standard chassis and supports efficient sleep states

Caractéristiques

TypeATX

Questions sur cet article

How quiet is the ACE-828T during all-day operation with its 250W rating?

The 80 PLUS Gold efficiency and Zero RPM Fan Mode keep the unit near-silent at low and medium loads, while Resonant LLC topology with DC-to-DC conversion reduces coil whine for quieter running all day.

Which motherboard connector does the DC48V 250W supply require to work?

It uses a standard ATX connector, so any motherboard with a matching 24-pin ATX socket will power up without extra adapters.

Will this 48V-input PSU run reliably with an older ATX motherboard I want to keep?

Yes, the ATX form factor and DC-to-DC conversion deliver clean, consistent power compatible with legacy boards, and Modern Standby support adds efficient sleep states.

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