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Silver ATX power supply unit with fan grille and cable bundle

KHACHIMO

KHACHIMO R210 R220 250W ATX Power Supply

SKU CH-9VRK-D7ZTR

A 250 W ATX power supply with 80 PLUS Gold efficiency, Zero RPM fan mode and Modern Standby compatibility for silent, low-power operation

  • TypeATX
  • Faster wake-from-sleep with Modern Standby support
  • Lower electricity draw thanks to 80 PLUS Gold efficiency
  • Near-silent operation via Zero RPM fan mode at low loads
  • Clean, stable power delivery through resonant LLC topology with DC-to-DC conversion
  • Reduced coil whine for quieter performance under load

Efficient ATX Power for Compact Builds

The KHACHIMO R210 R220 is a 250W ATX power supply designed for small-form-factor systems and office workstations. Its 80 PLUS Gold certification ensures high efficiency during typical workloads, reducing electricity costs and heat output. This unit suits builders who need reliable power without the bulk or expense of higher-wattage models. It is not for gaming rigs or workstations that demand more power than 250W can deliver.

Quiet Operation Through Smart Thermal Design

The 80 PLUS Gold rating keeps waste heat low, helping the unit run cooler under normal loads. A Zero RPM fan mode stops the fan completely at low and medium loads, providing near-silent operation for distraction-free environments. Resonant LLC topology with DC-to-DC conversion further reduces coil whine and maintains stable voltages, contributing to a quieter, cooler system overall.

Modern Standby Support for Faster Resume

Modern Standby compatibility enables extremely fast wake-from-sleep times and improved low-load efficiency. This feature benefits users who frequently suspend and resume their workstations throughout the day. The resonant LLC and DC-to-DC design also supports more energy-efficient sleep states, lowering standby power draw without requiring additional configuration.

Highlights

  • Faster wake-from-sleep with Modern Standby support
  • Lower electricity draw thanks to 80 PLUS Gold efficiency
  • Near-silent operation via Zero RPM fan mode at low loads
  • Clean, stable power delivery through resonant LLC topology with DC-to-DC conversion
  • Reduced coil whine for quieter performance under load

Specifications

TypeATX

Questions about this item

How do I install this 250W ATX power supply and which step is often missed?

Mount the unit in a standard ATX case using four screws, connect the 24-pin ATX and 4/8-pin CPU cables, then enable Modern Standby in the motherboard BIOS — the fast wake feature will not work if this setting is left disabled.

What maintenance will the 80 PLUS Gold unit need over time?

Dust the intake grill every six months; the Zero RPM fan stays off at low loads, so debris builds up unseen and can restrict airflow when the fan eventually spins up.

Where does the 250W limit appear first during sustained load?

The 250W total output ceiling is reached before any single rail trips; once combined draw hits that figure the protection circuit shuts the unit down to prevent overload.

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