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Rectangular black metal ATX power supply unit with ventilation grille and fan visible

KHACHIMO

KHACHIMO 250W ATX Power Supply HK350-55BP

SKU CH-DBPN-ZQNZ0

A 250 W ATX switching power supply with 80 PLUS Gold efficiency, Modern Standby support, zero-RPM fan mode and resonant LLC topology for quiet, stable power

  • TypeATX
  • Modern Standby compatible for extremely fast wake-from-sleep
  • 80 PLUS Gold certified for lower power consumption and cooler temps
  • Zero RPM fan mode stops the fan at low loads
  • Resonant LLC topology with DC-to-DC conversion delivers clean power
  • 250W ATX switching power supply in HK350-55BP form factor

Compact 250 W ATX Power Supply

The KHACHIMO HK350-55BP is a 250 W ATX power supply built for small-form-factor desktops and office workstations that do not need high-wattage graphics cards. It delivers reliable power for integrated-graphics processors, entry-level CPUs and basic storage configurations.

Modern Standby and 80 PLUS Gold Efficiency

The unit supports Modern Standby for rapid wake-from-sleep and carries 80 PLUS Gold certification for high efficiency at typical loads. Resonant LLC topology with DC-to-DC conversion provides clean power rails and enables deeper sleep states. It fits standard ATX mounting points and supplies the essential connectors for a minimal build.

Zero RPM Fan Mode Under Sustained Load

At low and medium loads the cooling fan stops completely for near-silent operation. The 80 PLUS Gold rating keeps waste heat low during extended workloads, so the fan remains off longer and internal temperatures stay moderate. Builders who need more than 250 W for discrete graphics or heavy multi-drive arrays should choose a higher-capacity unit.

Highlights

  • Modern Standby compatible for extremely fast wake-from-sleep
  • 80 PLUS Gold certified for lower power consumption and cooler temps
  • Zero RPM fan mode stops the fan at low loads
  • Resonant LLC topology with DC-to-DC conversion delivers clean power
  • 250W ATX switching power supply in HK350-55BP form factor

Specifications

TypeATX

Questions about this item

How much continuous power can the 250 W unit deliver before hitting its limit?

The power supply is rated for 250 W of continuous output, so sustained loads above that level will exceed its designed capacity.

What happens to fan noise and heat when the PSU runs all day at typical loads?

Zero RPM Fan Mode stops the fan completely at low and medium loads, and 80 PLUS Gold efficiency keeps waste heat and noise to a minimum.

Which motherboard power connectors must already be present for this ATX unit to work?

A standard 24-pin ATX main connector and a 4-pin or 8-pin CPU power connector are required on the motherboard.

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