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Rectangular silver ATX power supply unit with 8-pin connector and cooling fan visible

KHACHIMO

KHACHIMO 3020 7020 9020 3620 1700 8Pin 400W Power Supply

SKU CH-G4KE-VPBV6

A 400 W ATX power supply with 80 PLUS Gold efficiency, zero-RPM fan mode and Modern Standby support for quiet, low-power sleep states

  • Product typeATX
  • Faster wake-from-sleep with Modern Standby support
  • Lower power draw and cooler running via 80 PLUS Gold efficiency
  • Near-silent operation at low loads with Zero RPM fan mode
  • Clean, stable power delivery from resonant LLC topology with DC-to-DC conversion
  • Reduced coil whine and efficient sleep states enabled by advanced topology

Ready for modern standby systems

This ATX power supply delivers 400 W and carries 80 PLUS Gold certification for high efficiency. It is designed for PCs that use Modern Standby so wake-from-sleep times stay extremely short and low-load efficiency is improved. The resonant LLC topology with DC-to-DC conversion provides clean power and enables deeper sleep states. Builders wanting silent idle operation will appreciate the Zero RPM fan mode.

Standard ATX fit with single 8-pin

The unit follows the ATX form factor so it mounts in typical cases using four screws. Only one 8-pin connector is mentioned in the model data, so systems needing multiple CPU or GPU power plugs will require adapters or a different unit. Cable routing is straightforward but the fixed cable set limits how far you can run wires behind the motherboard tray. Check your motherboard and graphics card power needs before installing.

Quiet under sustained load

At low and medium loads the fan remains off entirely, keeping noise near zero during everyday work. When output rises the fan spins up, and the resonant LLC design with DC-to-DC conversion reduces coil whine so the unit stays quiet even during longer sessions. Gold-rated efficiency means less waste heat, which helps internal temperatures stay lower over extended use. The fan will run continuously only under heavier sustained demand.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $94.99
Cheaper than about 70% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

How do I confirm the KHACHIMO 400W power supply is operating correctly after installation?

Verify the system boots reliably, check that the fan remains off under light load due to Zero RPM Fan Mode, and monitor for stable voltages and fast wake-from-sleep with Modern Standby.

What comes in the box with the KHACHIMO D400EM-00 compatible unit and what must I source separately?

The unit ships as a 400W ATX power supply with its fixed cables; any extra connectors or mounting hardware needed for your particular chassis must be obtained separately.

Which of the listed model numbers — 3020, 7020, 9020, 3620, 1700 — should I select for my replacement?

Choose the number that matches the original part label on your existing supply, such as D400EM-00, LX400EM-00, DPS-400CB A, H290AM-00 or HU290EM-01, to ensure correct fit and pinout.

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