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Black rectangular ATX power supply unit with cooling fan grille and power connectors visible

KHACHIMO

KHACHIMO ATX 300W Power Supply ACE-A130-R11

SKU CH-01S9-NQEDS

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

  • Product typeATX
  • Modern Standby support enables extremely fast wake-from-sleep times
  • 80 PLUS Gold certification delivers high efficiency for lower power consumption
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent operation
  • Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and reduces coil whine
  • ATX form factor fits standard desktop builds with 300 W output

300W ATX power supply for entry builds

The KHACHIMO ACE-A130-R11 delivers 300W through a standard ATX form factor. It suits office PCs, compact media centres and basic home systems that do not require high-wattage headroom. Modern Standby support allows extremely fast wake-from-sleep transitions. The unit targets builders who need reliable, efficient power without enthusiast-class capacity.

Gold efficiency with semi-passive cooling

80 PLUS Gold certification means high efficiency at typical loads, reducing waste heat and electricity cost. A Zero RPM fan mode stops the fan completely at low and medium loads for near-silent operation. Resonant LLC topology with DC-to-DC conversion supplies clean, consistent power and reduces coil whine. Standard ATX connectors fit mainstream motherboards and drives.

Low heat and quiet operation in daily use

Gold-rated efficiency keeps internal temperatures lower during normal workloads. The fan remains off under light duties, so acoustic output is minimal for office or living-room environments. Resonant LLC design further limits coil noise and supports deeper sleep states. The 300W limit means the unit is not intended for discrete graphics cards or heavy overclocking.

How it compares

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

Price $243.99
Pricier than about 71% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

Is the ATX 300W power supply 80 PLUS Gold certified and what efficiency does that guarantee?

Yes, it carries 80 PLUS Gold certification, meaning at least 80% efficiency at typical loads for lower consumption and cooler operation.

What physical space does this ATX power supply need in the case?

It fits a standard ATX mounting cut-out and is secured with four screws on the rear panel of the case.

How do I install the unit and enable the Zero RPM fan mode?

Mount the supply, connect the 24-pin and CPU power cables, then the fan stops automatically at low and medium loads.

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