We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Rectangular ATX power supply unit with matte black finish and cooling fan grille

KHACHIMO

KHACHIMO 300W ATX Power Supply MRT-6300P-R 80 PLUS Gold

SKU CH-M32K-MM7K6

An ATX power supply delivering 300 watts with 80 PLUS Gold efficiency, Modern Standby support, zero-RPM fan mode and resonant LLC topology with DC-to-DC conversion

  • TypeATX
  • 80 PLUS Gold certification reduces power draw and heat
  • Zero RPM fan mode stops the fan at low loads for silent running
  • Modern Standby support delivers faster wake-from-sleep response
  • Resonant LLC topology with DC-to-DC conversion provides stable voltage and less coil noise
  • 300 W ATX output suits compact and entry-level builds

300W ATX Gold Power Supply

The KHACHIMO MRT-6300P-R is a 300 watt ATX power supply certified to 80 PLUS Gold efficiency. It targets builders assembling compact or low-power desktop systems who value quiet operation and modern sleep-state support. Its resonant LLC topology with DC-to-DC conversion delivers clean, consistent power across all rails.

Compatibility checklist for your build

Verify that your motherboard accepts a standard ATX power connector and that the total system draw stays within the 300 watt rating. Confirm the unit’s cable set matches your GPU and storage requirements before ordering. Ensure the chassis has room for a standard ATX form-factor supply.

Thermals noise and power draw

The 80 PLUS Gold rating means high efficiency at typical loads, reducing waste heat and overall power consumption. A Zero RPM fan mode stops the fan completely at low and medium loads for near-silent running. Resonant LLC topology further cuts coil whine and supports efficient Modern Standby sleep states.

Highlights

  • 80 PLUS Gold certification reduces power draw and heat
  • Zero RPM fan mode stops the fan at low loads for silent running
  • Modern Standby support delivers faster wake-from-sleep response
  • Resonant LLC topology with DC-to-DC conversion provides stable voltage and less coil noise
  • 300 W ATX output suits compact and entry-level builds

Specifications

TypeATX

Questions about this item

Does the KHACHIMO 300W ATX PSU include cables or must they be purchased separately?

The unit ships with its fixed ATX cables attached; no extra cable kit is required for a standard build.

What does the 80 PLUS Gold rating mean for this 300W model?

It guarantees at least 80 percent efficiency at typical loads, reducing waste heat and fan noise compared with lower-rated units.

How does the Zero RPM fan mode behave inside a real PC?

The fan stays completely off at low and medium loads, so the system runs silently until the power draw rises enough to need active cooling.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.