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Compact silver ATX power supply unit with fan grille

KHACHIMO

KHACHIMO 80 Plus Gold 300W ATX Power Supply

SKU CH-SVBY-BWSDA

An 80 Plus Gold 300 W ATX supply with Modern Standby support, zero-RPM fan mode and LLC resonant DC-to-DC topology for efficient, quiet power

  • TypeATX
  • Faster wake-from-sleep with Modern Standby support
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Fan stops at low loads for silent running
  • Resonant LLC plus DC-to-DC gives cleaner power
  • ATX form factor fits standard desktop cases

Compact 300W PSU for low-power builds

The KHACHIMO unit delivers 300 watts through a standard ATX form factor and carries 80 PLUS Gold certification for high efficiency. It is suited to compact desktops, thin clients or upgrade projects where a modest power budget and Modern Standby support are required.

Gold efficiency with semi-passive cooling

At low and medium loads the fan remains stationary, eliminating audible noise while the Gold-rated design keeps power draw and temperatures low. Resonant LLC topology paired with DC-to-DC conversion further reduces coil whine and supports deeper sleep states for quiet everyday operation.

Steady output under continuous demand

The resonant LLC and DC-to-DC architecture maintains clean, consistent voltage regulation during prolonged workloads rather than only in short bursts. This topology sustains efficient power delivery and thermal performance when the system runs at higher loads for extended periods.

Highlights

  • Faster wake-from-sleep with Modern Standby support
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Fan stops at low loads for silent running
  • Resonant LLC plus DC-to-DC gives cleaner power
  • ATX form factor fits standard desktop cases

Specifications

TypeATX

Questions about this item

How do I install this 1U FLEX ATX power supply in a standard case and what step is often missed?

Mount the 1U unit using the four corner screws, connect the 24-pin ATX and 4+4-pin CPU cables, then enable Modern Standby in the BIOS so the fast wake-from-sleep feature actually works.

What maintenance will this 300 W unit need over its lifetime?

The Zero RPM fan only spins under load, so dust builds up slowly; vacuum the intake grille once a year and listen for bearing noise — if the fan becomes audible at idle, replace the fan assembly.

What limit appears first when this Gold-rated supply runs at high load continuously?

At sustained loads near 300 W the 80 Plus Gold efficiency target is still met, but the compact 1U heatsink saturates first, causing the fan to exit Zero RPM mode and ramp to maximum speed for cooling.

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