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Silver rectangular 2U ATX power supply unit with fan grille and cable connectors

KHACHIMO

KHACHIMO 2U 350W ATX Power Supply ST-P0350WAB

SKU CH-VRA9-RYZRW

A 350W ATX unit with 80 PLUS Gold efficiency, Modern Standby support, zero-RPM fan mode and LLC resonant topology for clean, quiet power

  • TypeATX
  • Modern Standby support for ultra-fast wake times and improved low-load efficiency
  • 80 PLUS Gold certification delivers high efficiency, lower power draw and cooler running
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent operation
  • Resonant LLC topology with DC-to-DC conversion provides clean, stable power and reduces coil whine
  • 350 W ATX output in a compact 2U form factor for space-constrained builds

KHACHIMO 2U 350W ATX Power Supply

The KHACHIMO ST-P0350WAB is a 2U form-factor ATX power supply rated at 350W, built for compact server or workstation chassis. It carries 80 PLUS Gold certification and uses resonant LLC topology with DC-to-DC conversion to deliver clean, efficient power. Modern Standby compatibility enables extremely fast wake-from-sleep transitions and improved low-load efficiency. A Zero RPM fan mode stops the fan entirely at low and medium loads for near-silent operation.

Suited for compact builds needing Gold efficiency

This unit fits 2U rackmount or slim-tower cases that require an ATX power source with high efficiency and low acoustic output. Modern Standby support benefits systems that frequently enter sleep states. Builds demanding more than 350W of continuous power, or those needing redundant or hot-swap power modules, should consider higher-capacity or server-specific alternatives instead.

350W continuous capacity with Gold-class headroom

The 350W rating comfortably handles mainstream CPUs, single mid-range GPUs, and several storage drives in a 2U enclosure. Efficiency remains high across typical loads, reducing waste heat and fan activity. Sustained loads approaching the 350W limit will engage active cooling and leave minimal overhead for future upgrades or power spikes.

Points forts

  • Modern Standby support for ultra-fast wake times and improved low-load efficiency
  • 80 PLUS Gold certification delivers high efficiency, lower power draw and cooler running
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent operation
  • Resonant LLC topology with DC-to-DC conversion provides clean, stable power and reduces coil whine
  • 350 W ATX output in a compact 2U form factor for space-constrained builds

Caractéristiques

TypeATX

Questions sur cet article

What motherboard power connectors does the KHACHIMO 2U 350W ATX PSU need to work?

It requires a standard 24-pin ATX main connector plus a 4-pin or 8-pin CPU power connector from the motherboard.

Will the Zero RPM Fan Mode still activate if I pair this 350W unit with older components that draw very little power?

Yes, the fan stops completely at low and medium loads regardless of component age.

How can I confirm the 80 PLUS Gold efficiency is working after installation?

Use monitoring software to verify the PSU enters Modern Standby sleep states and that the fan remains off during light workloads.

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