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Rectangular silver ATX power supply unit with cooling fan and cable bundle

KHACHIMO

KHACHIMO 300W ATX Power Supply 80 PLUS Gold 250 260 390 790 990 3010 9010

SKU CH-EV1P-KQ5YC

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

  • TypeATX
  • Fast wake-from-sleep with Modern Standby support
  • 80 PLUS Gold efficiency cuts power use and heat
  • Zero RPM fan mode stops the fan at low loads
  • Resonant LLC topology with DC-to-DC gives clean, stable power
  • ATX form factor fits standard desktop builds

300 W ATX power supply for compact builds

This 300 W ATX unit targets small-form-factor systems and OEM replacements where a standard footprint is required. It carries 80 PLUS Gold certification, so it runs efficiently across typical desktop workloads. Modern Standby support means the PC wakes from sleep almost instantly.

Sustained-load behaviour

Under continuous demand the resonant LLC topology with DC-to-DC conversion keeps voltage regulation tight and ripple low. The zero-RPM fan mode stays active through light and medium loads, eliminating fan noise until the thermal sensor calls for airflow. Gold-rated efficiency reduces waste heat, helping the unit stay cooler during long sessions.

Pre-installation checks

Verify that your case accepts a standard ATX power supply and that the total system draw fits within the 300 W rating. Confirm the motherboard uses a 24-pin ATX connector and that any graphics card or drive power needs match the cables supplied. Ensure the chassis has adequate rear clearance for the exhaust grille.

Highlights

  • Fast wake-from-sleep with Modern Standby support
  • 80 PLUS Gold efficiency cuts power use and heat
  • Zero RPM fan mode stops the fan at low loads
  • Resonant LLC topology with DC-to-DC gives clean, stable power
  • ATX form factor fits standard desktop builds

Specifications

TypeATX

Questions about this item

How loud is the fan when the 300W ATX supply runs all day?

Zero RPM Fan Mode stops the fan completely at low and medium loads, so the unit runs near-silently during typical all-day use.

What cables or connectors must my system already have for this PSU to work?

It uses standard ATX connectors, so a motherboard with a 24-pin ATX socket and the usual CPU and peripheral headers is all that is required.

Will the 80 PLUS Gold efficiency help my older components run cooler?

The Gold-rated design wastes less power as heat, lowering case temperatures and reducing stress on ageing parts during long sessions.

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