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

KHACHIMO

KHACHIMO C1100 650W ATX power supply

SKU CH-Q0J8-Y211Z

650W ATX power supply with 80 PLUS Gold efficiency, Modern Standby support, zero-RPM fan mode and resonant LLC plus DC-to-DC topology for clean, quiet power

  • TypeATX
  • Fast wake from sleep with Modern Standby support
  • Lower power draw and cooler running via 80 PLUS Gold efficiency
  • Near-silent operation as fan stops at low load
  • Clean, stable power delivery through LLC resonant topology with DC-to-DC conversion
  • Reduced coil whine and efficient sleep states enabled by resonant LLC design

650 W ATX PSU for modern PCs

The KHACHIMO C1100 delivers 650 W of continuous power through a standard ATX form factor. It targets builders who want Gold-rated efficiency and quiet operation without over-specifying capacity for mid-range systems.

Gold efficiency with silent low-load running

80 PLUS Gold certification keeps waste heat and fan speed down during typical workloads. A Zero RPM mode stops the fan completely at low and medium loads, while resonant LLC topology with DC-to-DC conversion reduces coil whine and supports modern standby sleep states.

Replaces older bronze or unrated units

The efficiency jump is worthwhile when upgrading from power supplies that lack Gold certification or modern standby support. Systems that stay asleep for long periods benefit most from the faster wake times and lower idle draw.

Highlights

  • Fast wake from sleep with Modern Standby support
  • Lower power draw and cooler running via 80 PLUS Gold efficiency
  • Near-silent operation as fan stops at low load
  • Clean, stable power delivery through LLC resonant topology with DC-to-DC conversion
  • Reduced coil whine and efficient sleep states enabled by resonant LLC design

Specifications

TypeATX

Questions about this item

What ATX standard does this 650 W unit meet for modern standby wake times?

It is Modern Standby compatible, delivering extremely fast wake-from-sleep performance and improved low-load efficiency.

What physical space and mounting points does the C1100 require in a case?

The supply uses the standard ATX form factor, so it fits any case with an ATX PSU bay and four rear mounting screws.

Which cables must be connected during installation, and which step is often missed?

Connect the 24-pin motherboard cable, the 8-pin CPU cable, and any GPU or drive cables needed; the step most often missed is fully seating the 24-pin connector until the latch clicks.

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