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Compact ATX power supply unit with matte black metal casing and rear exhaust fan grille

KHACHIMO

KHACHIMO 250W ATX Power Supply EFRP-250ANF

SKU CH-WY2V-J25AV

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

  • Product typeATX
  • Modern Standby compatible for near-instant wake from sleep
  • 80 PLUS Gold certified for high efficiency and lower running costs
  • Zero RPM fan mode keeps the unit silent at low loads
  • Resonant LLC topology with DC-to-DC conversion delivers clean, stable power
  • 250 W ATX output suited to compact or low-power builds

250 W ATX Power Supply

The KHACHIMO EFRP-250ANF is a 250 W ATX power supply built for compact desktop builds and low-power workstations. It delivers standard ATX connectivity with modern standby support for fast wake times. This unit suits systems that prioritise efficiency and quiet operation over high-wattage headroom.

80 PLUS Gold Efficiency Limits

The 80 PLUS Gold rating guarantees high efficiency at typical loads, reducing power draw, heat output and fan noise. Efficiency drops at very low or very high utilisation, so the supply performs best within its intended mid-range operating window. Builders should match the unit to actual system consumption rather than peak theoretical draw.

250 Watt Output Constraint

The single 250 W rating decides whether this unit fits a given build; it supports modest CPUs and integrated graphics but cannot power discrete graphics cards or heavy multi-drive arrays. Systems requiring more headroom must select a higher-wattage model.

How it compares

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

Price $350.99
Pricier than about 82% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

Is the 250W version the only capacity available for this model?

The supplier lists this unit as a 250W ATX power supply with no other capacity options mentioned.

What does the 80 PLUS Gold rating mean for daily power draw and heat?

It certifies high efficiency at typical loads, so the unit wastes less electricity, runs cooler and keeps fan noise lower.

Which ATX standard does this supply follow and what does that cap in practice?

It uses the ATX form factor with Resonant LLC topology and DC-to-DC conversion, delivering clean power and supporting modern sleep states.

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