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Rectangular silver ATX power supply unit with black fan grille and cable bundle

KHACHIMO

KHACHIMO X3100 M4 M5 350W Power Supply

SKU CH-8PYB-30YP4

An ATX power supply delivering 350 W with 80 PLUS Gold efficiency, Zero RPM fan mode and Modern Standby support for fast, quiet wake-up

  • Product typeATX
  • Fast wake from sleep with Modern Standby support
  • Lower power draw and heat with 80 PLUS Gold efficiency
  • Silent low-load operation via Zero RPM fan mode
  • Clean, stable power from resonant LLC with DC-to-DC
  • Quieter running thanks to reduced coil whine

New 350 W ATX power supply

The KHACHIMO X3100 M4 M5 is a new 350 W ATX power supply carrying 80 PLUS Gold certification. It targets system builders who want efficient, quiet power for mainstream desktops or replacement units in compatible OEM chassis.

Suited for quiet, efficient mainstream builds

Modern Standby support delivers fast wake times and better low-load efficiency, while the Zero RPM fan mode stops the fan at low and medium loads. Builders who need higher wattage for multi-GPU setups or extreme overclocking should look elsewhere.

80 PLUS Gold efficiency at 350 W

The Gold rating means lower power draw, less heat and reduced noise under typical loads. Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and helps suppress coil whine.

How it compares

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

Price $103.99
Cheaper than about 66% of the 10,869 comparable items (median $142.99).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Product typeATX

Questions about this item

Does this PSU need any extra cables or adapters to fit a standard ATX case?

The unit follows the ATX form factor and includes the fixed cables required for a typical build.

Will the 350 W output and Modern Standby support work with an older motherboard that lacks Modern Standby?

Yes, it delivers standard ATX voltages so the system will run normally; the fast wake feature simply remains inactive.

How can I confirm the Zero RPM fan mode is active after assembly?

Under light load the fan stays completely still — zero audible noise and no visible blade movement indicate the mode is working.

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