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 black ATX power supply unit with gold efficiency badge

KHACHIMO

KHACHIMO POWEREX SPC-S350 REX-S350 350W 80 PLUS Gold ATX power supply

SKU CH-7QVK-GK25Y

An ATX power supply delivering 350W with 80 PLUS Gold efficiency, Modern Standby support, zero-RPM fan mode and LLC resonant topology for quiet, stable power

  • TypeATX
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Zero RPM fan mode stops the fan at low load for silent running
  • Modern Standby support gives faster wake times and better idle efficiency
  • Resonant LLC with DC-to-DC topology delivers clean, stable power
  • 350 W ATX output suits compact and industrial systems

350 W ATX PSU for efficient builds

This 350 W ATX power supply targets builders who want high efficiency and quiet operation in mainstream desktops. It carries an 80 PLUS Gold certification and supports Modern Standby for rapid wake-from-sleep. The resonant LLC topology with DC-to-DC conversion delivers clean power and reduces coil whine.

Upgrade from lower-rated or group-regulated units

Replacing a standard Bronze or non-certified unit cuts waste heat and lowers electricity draw at typical loads. The jump is worthwhile when you value silent idle behaviour, as the Zero RPM fan mode stops the fan completely at low and medium loads. It is not for systems that demand more than 350 W of continuous power.

Limits of the ATX form factor and Gold rating

The ATX form factor fits standard cases, but cable lengths and connector counts are fixed by the specification. Gold certification guarantees efficiency at defined load points, not at every possible workload. Modern Standby support depends on motherboard and operating-system implementation.

Highlights

  • 80 PLUS Gold efficiency cuts power draw and heat
  • Zero RPM fan mode stops the fan at low load for silent running
  • Modern Standby support gives faster wake times and better idle efficiency
  • Resonant LLC with DC-to-DC topology delivers clean, stable power
  • 350 W ATX output suits compact and industrial systems

Specifications

TypeATX

Questions about this item

Will the 350W ATX form factor fit my standard ATX case?

Yes, the unit follows the ATX form factor so it mounts in any standard ATX chassis using the usual four screw holes.

What is the common mistake when connecting the 24-pin ATX and CPU power cables?

Builders often leave the 4+4 pin CPU connector partially seated; push both halves until each latch clicks to avoid no-post issues.

How often should the 80 PLUS Gold fan be cleaned to keep Zero RPM mode effective?

Blow dust from the fan grill every six to twelve months; a clogged grill forces the fan to spin earlier and reduces silent operation.

Also in this aisle

People compared these

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