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Rectangular ATX power supply unit, matte black metal casing, cooling fan visible on one side, modular cable connectors on the rear

KHACHIMO

KHACHIMO 250W ATX Power Supply RDT-6250P-R 80 PLUS Gold

SKU CH-AFS5-P1NYK

A 250W ATX power supply with 80 PLUS Gold efficiency, zero-RPM fan mode and Modern Standby support for quiet, low-power systems

  • Product typeATX
  • Modern Standby support for faster wake-from-sleep
  • 80 PLUS Gold efficiency lowers power draw and heat
  • Zero RPM fan mode keeps operation silent at low loads
  • Resonant LLC topology with DC-to-DC conversion delivers clean, stable power
  • 250 W ATX output fits compact and standard builds

250W ATX Power Supply

The KHACHIMO RDT-6250P-R is a 250W ATX power supply built for compact desktop systems. It carries 80 PLUS Gold certification for high efficiency at typical loads. Modern Standby compatibility enables extremely fast wake-from-sleep times and better low-load efficiency. The unit targets builders who need reliable power in a standard form factor.

Replacing older low-efficiency units

This supply replaces older ATX units that lack 80 PLUS Gold certification or Modern Standby support. The jump is worthwhile when the system demands lower power consumption, less noise, and cooler temperatures. Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and reduces coil whine. It is not for builds requiring higher wattage than 250W.

Standard ATX installation

Installation follows standard ATX mounting and cabling procedures for straightforward integration. Zero RPM fan mode stops the cooling fan at low and medium loads for near-silent operation. The resonant LLC design enables use of more energy efficient sleep states without instability. Ensure the 250W output matches the total system power draw before fitting.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $412.99
Pricier than about 85% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

What physical space does the ATX power supply need inside the case?

The unit follows the standard ATX form factor, so it fits any case with an ATX PSU bay and mounts with four rear screws.

Which cable must be connected for the motherboard to support Modern Standby?

Plug the 24-pin ATX connector and the 4+4-pin EPS cable; the firmware then handles the low-power states automatically.

When should the cooling fan be cleaned to keep Zero RPM mode effective?

Inspect the intake grille whenever you open the case and blow out dust so the fan can remain off at low and medium loads.

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