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Rectangular black metal ATX power supply unit with cooling fan and cable bundle

KHACHIMO

KHACHIMO GX280MT 305W Power Supply NPS-305AB C G3148 0G3148

SKU CH-2N3S-5FJ5R

A 305 W ATX power supply with 80 PLUS Gold efficiency, zero-RPM fan mode and Modern Standby support for fast wake times

  • TypeATX
  • Modern Standby compatible for extremely fast wake-from-sleep
  • 80 PLUS Gold certified for high efficiency and lower power consumption
  • Zero RPM fan mode stops the fan at low and medium loads
  • Resonant LLC topology with DC-to-DC conversion delivers clean, consistent power
  • ATX form factor fits standard desktop chassis

305 W ATX power supply for modern standby PCs

This 305 W ATX unit targets systems that require Modern Standby support for instant wake and low-load efficiency. It suits compact office builds, small-form-factor upgrades, or replacement of proprietary Dell GX280MT units carrying part numbers 0G3148 or G3148.

Gold efficiency with zero-RPM fan at low load

80 PLUS Gold certification keeps power draw low and temperatures down during typical workloads. The resonant LLC topology with DC-to-DC conversion delivers clean voltage regulation while suppressing coil whine. At light and medium loads the fan stops completely, giving near-silent operation.

Single 305 W limit decides fit for low-power builds

The 305 W maximum output restricts this unit to platforms such as 8400 or 8700 class processors and basic graphics configurations. Builders planning discrete high-end GPUs, multi-drive arrays or heavy overclocking will need a higher-capacity supply.

Highlights

  • Modern Standby compatible for extremely fast wake-from-sleep
  • 80 PLUS Gold certified for high efficiency and lower power consumption
  • Zero RPM fan mode stops the fan at low and medium loads
  • Resonant LLC topology with DC-to-DC conversion delivers clean, consistent power
  • ATX form factor fits standard desktop chassis

Specifications

TypeATX

Questions about this item

How do I install the KHACHIMO GX280MT 305W ATX power supply and which step is often missed?

Mount the unit in the case with four screws, connect the 24-pin ATX, CPU and peripheral cables, then verify the motherboard BIOS has Modern Standby enabled so the fast wake and low-load efficiency features actually work.

What maintenance or replacement will the KHACHIMO GX280MT 305W unit need later?

The Zero RPM fan mode keeps the fan off at low and medium loads, reducing wear; plan to clean dust from the intake vents annually and replace the unit only if the fan bearings become noisy after several years.

What limit appears first on the KHACHIMO GX280MT 305W supply under sustained heavy load?

The 305 W maximum output is the first ceiling; the 80 PLUS Gold efficiency and resonant LLC topology with DC-to-DC conversion maintain stable voltages up to that point, so exceeding 305 W triggers protection shutdown.

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