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
Silver rectangular ATX power supply unit with rear fan grille and side label

KHACHIMO

KHACHIMO 300W power supply L300PM-00

SKU CH-C2XN-KY6ZK

ATX 300W unit with 80 PLUS Gold efficiency, Zero RPM fan mode and Modern Standby support for fast wake times

  • TypeATX
  • Faster wake-from-sleep with Modern Standby support
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Fan stays off at low loads for silent running
  • LLC resonant topology with DC-to-DC delivers stable voltage
  • Reduces coil whine for quieter operation

300W ATX PSU for Modern Standby systems

This 300W ATX power supply is built for desktops that use Modern Standby sleep states. It carries 80 PLUS Gold certification for high efficiency at typical loads. The resonant LLC topology with DC-to-DC conversion delivers clean power and helps reduce coil whine. It suits builders who want efficient, quiet operation in a standard ATX form factor.

Ideal for office PCs and quiet home builds

The Zero RPM fan mode stops the fan completely at low and medium loads, giving near-silent running for office work or media playback. Gold-rated efficiency lowers waste heat and electricity draw. Systems that demand sustained loads above 300W or require auxiliary connectors not listed here should consider a higher-capacity unit instead.

No extra cables or software included

The package provides only the power supply unit itself. There are no modular cables, adapters, or configuration utilities bundled. Installers must reuse existing ATX cables or source compatible ones separately. The lack of bundled accessories keeps the focus on the core efficiency and noise features.

Highlights

  • Faster wake-from-sleep with Modern Standby support
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Fan stays off at low loads for silent running
  • LLC resonant topology with DC-to-DC delivers stable voltage
  • Reduces coil whine for quieter operation

Specifications

TypeATX

Questions about this item

Does this 300W ATX unit include the 24-pin motherboard and 4+4-pin CPU cables my build needs?

Yes, the L300PM-00 ships with the standard ATX 24-pin connector and a 4+4-pin EPS cable for modern motherboards.

Will the Resonant LLC topology with DC-to-DC conversion keep voltages stable on an older platform that only draws light loads?

The topology maintains tight regulation down to very low loads, so legacy systems stay stable even during idle or sleep states.

How can I confirm the Zero RPM fan mode is actually engaging after I install the PSU?

Under light load the fan stops completely; you can verify silence visually and by ear, then watch it spin up as load increases past the threshold.

Also in this aisle

People compared these

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