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Compact 1U power supply unit with 20-pin connector and metal casing

KHACHIMO

KHACHIMO AIO FLEX Small 1U 20Pin 250W Power Supply DPS-250AB-44E

SKU CH-1PYX-DBH54

Compact 250W ATX power supply with 20-pin connector, 80 PLUS Gold efficiency, zero-RPM fan mode and Modern Standby support

  • TypeATX
  • Modern Standby support for faster wake-from-sleep times
  • 80 PLUS Gold certification for lower power consumption and cooler operation
  • Zero RPM fan mode stops the fan at low loads for near-silent running
  • Resonant LLC topology with DC-to-DC conversion delivers clean, consistent power and reduces coil whine
  • Compact 1U form factor with 20-pin connector fits small AIO and Flex chassis

1U 20-pin 250W ATX power supply

This compact 1U unit delivers 250 W through a 20-pin ATX connector, making it suitable for small-form-factor or all-in-one systems that require a slim profile. It is aimed at builders replacing an OEM supply or assembling a low-power workstation where space is limited.

Sustained-load efficiency and acoustics

The 80 PLUS Gold rating ensures high efficiency during continuous operation, reducing heat output and overall power draw. Resonant LLC topology with DC-to-DC conversion maintains clean voltage regulation under load, while the Zero RPM fan mode keeps the unit silent at low and medium demand.

Installation notes and common issues

The 20-pin connector fits legacy ATX motherboards but will not populate the extra four pins on 24-pin sockets, so verify the board layout before fitting. The 1U height restricts use to chassis designed for that form factor, and the fixed cable set may limit routing options in tight enclosures.

Highlights

  • Modern Standby support for faster wake-from-sleep times
  • 80 PLUS Gold certification for lower power consumption and cooler operation
  • Zero RPM fan mode stops the fan at low loads for near-silent running
  • Resonant LLC topology with DC-to-DC conversion delivers clean, consistent power and reduces coil whine
  • Compact 1U form factor with 20-pin connector fits small AIO and Flex chassis

Specifications

TypeATX

Questions about this item

How loud and hot does the 250W 80 PLUS Gold unit get when running all day?

At low and medium loads the Zero RPM fan mode stops the fan completely for near-silent operation, while Gold efficiency keeps power draw and heat low.

What must my system already have for this 20-pin PSU to work?

Your motherboard needs a 20-pin ATX power connector and the chassis must accept a 1U form-factor supply.

Will the DPS-250AB-44E run stably with older components I keep?

The resonant LLC topology with DC-to-DC conversion delivers clean, consistent power that supports energy-efficient sleep states on legacy hardware.

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