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Silver rectangular ATX power supply unit with rear fan grille and DC power connectors

KHACHIMO

KHACHIMO JPSU-650W-DC-AFI 650W Power Supply

SKU CH-CE2N-D380B

Delivers 650 W of 80 PLUS Gold certified ATX power with Modern Standby support, zero-RPM fan mode and resonant LLC DC-to-DC topology for quiet, efficient operation

  • TypeATX
  • Modern Standby support for near-instant wake and efficient sleep
  • 80 PLUS Gold efficiency cuts consumption, noise and heat
  • Zero RPM fan mode keeps the unit silent at low loads
  • Resonant LLC with DC-to-DC conversion delivers clean, stable power
  • 650 W capacity fits EX4550, QFX3500 and QFX3600 systems

KHACHIMO JPSU-650W-DC-AFI 650W PSU

The KHACHIMO JPSU-650W-DC-AFI is a 650W ATX power supply built for systems that demand high efficiency and quiet operation. It suits builders assembling workstations or servers where consistent power delivery and low acoustic output are priorities. Modern Standby compatibility ensures rapid wake-from-sleep transitions. The unit carries 80 PLUS Gold certification for reduced energy waste.

ATX form factor with DC-to-DC conversion

This supply uses a resonant LLC topology paired with DC-to-DC conversion to maintain clean, stable voltages across varying loads. The design supports modern sleep states and reduces coil whine, freeing the builder from audible electrical noise in quiet environments. Its ATX dimensions fit standard chassis layouts without requiring proprietary mounting brackets. The internal layout leaves cable routing space clear for tidy assembly.

Zero RPM Fan Mode and Gold efficiency

At low and medium loads the cooling fan stops completely, delivering near-silent operation during idle or light tasks. The 80 PLUS Gold rating lowers power draw and heat output, which reduces the cooling burden on the rest of the build. Modern Standby support enables extremely fast wake times for compatible motherboards. No additional software or accessories are bundled with the unit.

Highlights

  • Modern Standby support for near-instant wake and efficient sleep
  • 80 PLUS Gold efficiency cuts consumption, noise and heat
  • Zero RPM fan mode keeps the unit silent at low loads
  • Resonant LLC with DC-to-DC conversion delivers clean, stable power
  • 650 W capacity fits EX4550, QFX3500 and QFX3600 systems

Specifications

TypeATX

Questions about this item

How long can the 650 W output run before thermal limits engage?

The 80 PLUS Gold efficiency keeps internal temperatures lower, so the unit sustains its full 650 W rating continuously without throttling.

Will the fan stay quiet during an all-day workload?

Zero RPM mode stops the fan at low and medium loads, and the resonant LLC topology reduces coil whine, keeping noise minimal even under sustained use.

Which chassis or motherboard is required for this ATX unit to function?

A standard ATX case with a 24-pin motherboard connector and the usual 8-pin CPU power header is all that is needed for installation.

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