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Compact 1U ATX power supply unit with matte metal casing and rear fan grille

KHACHIMO

KHACHIMO ST-220FUB-05E 220W ATX power supply

SKU CH-0VZF-X5XVA

A 220 W ATX power supply with 80 PLUS Gold efficiency, Zero RPM fan mode and Modern Standby support for quiet, low-power operation

  • TypeATX
  • Modern Standby support for faster wake times
  • 80 PLUS Gold efficiency lowers power draw and heat
  • Zero RPM fan mode stops the fan at low loads
  • Resonant LLC with DC-to-DC conversion delivers cleaner power
  • 220 W ATX output in a compact 1U form factor

Compact 1U ATX power supply

The KHACHIMO ST-220FUB-05E is a 220W ATX power supply built in a 1U form factor. It suits small-form-factor PCs, embedded appliances or thin clients where internal space is at a premium and only modest power is required. The unit ships new and carries the vendor part code ST-220FUB-05E.

20-pin connector and modern standby support

A single 20-pin ATX connector supplies the motherboard, reflecting the unit’s compact orientation. Modern Standby compatibility allows the system to wake from sleep almost instantly while maintaining high efficiency at very low loads. Resonant LLC topology with DC-to-DC conversion delivers clean power rails and helps suppress coil whine.

Gold efficiency with semi-passive cooling

80 PLUS Gold certification confirms high efficiency across the load range, reducing waste heat and overall power draw. A Zero RPM fan mode stops the cooling fan entirely at low and medium loads for near-silent running. The fan engages only when thermal conditions demand it, keeping acoustic output minimal during typical workloads.

Highlights

  • Modern Standby support for faster wake times
  • 80 PLUS Gold efficiency lowers power draw and heat
  • Zero RPM fan mode stops the fan at low loads
  • Resonant LLC with DC-to-DC conversion delivers cleaner power
  • 220 W ATX output in a compact 1U form factor

Specifications

TypeATX

Questions about this item

What does the 80 PLUS Gold certification mean for this 220W unit?

It guarantees high efficiency at typical loads, which reduces power draw, heat output and fan noise.

What physical space does this 1U supply need inside the chassis?

It fits a standard 1U rack or slim tower bay and uses a 20-pin main connector.

How do I enable the Zero RPM fan mode on this model?

The mode activates automatically at low and medium loads; no software or BIOS setting is required.

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