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Rectangular ATX power supply unit in matte black finish with cooling fan and cable connectors visible

KHACHIMO

KHACHIMO AT P8P9P10 DC48V 300W Power Supply ACE-932T-RS

SKU CH-2W39-9XVW6

An ATX 300 W power supply with 80 PLUS Gold efficiency, zero-RPM fan mode and Modern Standby support for quiet, low-power sleep

  • Product typeATX
  • Fast wake from sleep with Modern Standby support
  • High 80 PLUS Gold efficiency cuts power draw and heat
  • Silent Zero RPM fan mode at low and medium loads
  • Clean power delivery via resonant LLC with DC-to-DC
  • 300 W ATX unit with 48 V DC output

300 W ATX power supply

The KHACHIMO ACE-932T-RS delivers 300 W of continuous power through a standard ATX form factor. It carries 80 PLUS Gold certification for high efficiency across typical loads. Resonant LLC topology with DC-to-DC conversion supplies clean voltage rails and reduces coil whine. Modern Standby compatibility enables extremely fast wake-from-sleep times and improved low-load efficiency.

Builders who value quiet, efficient sleep states

This unit suits systems that spend long periods in low-power states and benefit from near-silent operation at idle. The Zero RPM fan mode stops the fan entirely at low and medium loads for acoustic comfort. It is not intended for configurations that demand higher wattage or multiple high-power graphics cards. Buyers needing more than 300 W should look at larger capacity units.

Fits standard ATX cases and modern platforms

The ATX chassis slides into any compatible enclosure without proprietary mounting requirements. DC-to-DC conversion frees up headroom on the minor rails for stable peripheral power. Modern Standby support works with motherboards and operating systems that implement the low-power idle state. No special cabling or adapter brackets are required for installation.

How it compares

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

Price $598.99
Pricier than about 90% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

Does my motherboard need an ATX 24-pin and 8-pin EPS connector for this 300 W unit?

Yes, the ATX form factor supplies a 24-pin main connector and an 8-pin EPS connector that plug directly into standard motherboard sockets.

Will the 80 PLUS Gold efficiency and Modern Standby support work with an older Haswell-era board?

The 80 PLUS Gold rating applies at any load, and Modern Standby functions if the motherboard firmware supports the low-power sleep states; otherwise the supply simply runs as a high-efficiency ATX unit.

How can I confirm the Zero RPM fan mode is active after assembly?

Power the system at idle; if the fan remains stationary while the 300 W supply delivers low-load power, the Zero RPM mode is operating as designed.

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