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Rectangular ATX power supply unit in matte black metal casing with cooling fan grille

KHACHIMO

KHACHIMO 240W ATX Power Supply HK340-71FP

SKU CH-X0QK-P6F3Q

An ATX power supply delivering 240 W with 80 PLUS Gold efficiency, Modern Standby compatibility, Zero RPM fan mode and resonant LLC topology with DC-to-DC conversion

  • TypeATX
  • Modern Standby compatibility for faster wake times
  • 80 PLUS Gold certification lowers energy use and heat
  • Zero RPM fan mode stops the fan at light loads
  • Resonant LLC with DC-to-DC conversion delivers stable power
  • ATX form factor fits standard desktop cases

240W ATX Power Supply

The KHACHIMO HK340-71FP is a 240 watt ATX power supply built for small-form-factor and office PCs that prioritise efficiency and quiet operation. Its 80 PLUS Gold certification and Modern Standby compatibility suit systems that spend long periods in low-power sleep states.

Upgrading from older group-regulated units

Replacing an older group-regulated design with this unit adds resonant LLC topology and DC-to-DC conversion for tighter voltage regulation. The jump is worth it when a build needs cleaner power delivery and support for deeper, more efficient sleep states without coil whine.

Capacity and headroom

The 240 watt rating comfortably handles integrated-graphics desktops, thin-client upgrades and basic productivity workloads. It runs out of headroom when a discrete graphics card or multiple high-draw peripherals are added, so builders planning GPU upgrades should look at higher-wattage alternatives.

Highlights

  • Modern Standby compatibility for faster wake times
  • 80 PLUS Gold certification lowers energy use and heat
  • Zero RPM fan mode stops the fan at light loads
  • Resonant LLC with DC-to-DC conversion delivers stable power
  • ATX form factor fits standard desktop cases

Specifications

TypeATX

Questions about this item

What case clearance is needed for the ATX form factor?

The unit follows the standard ATX footprint so it fits any chassis designed for ATX power supplies.

Which cables must be connected during installation to avoid a no-post issue?

Attach the 24-pin motherboard connector and the 4+4-pin CPU power lead; the system will not start without both seated fully.

When should the internal fan be inspected for dust build-up?

Check the fan once a year; the Zero RPM mode means it spins only under load, so dust accumulates more slowly.

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