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Silver ATX power supply unit with cooling fan and cable bundle

KHACHIMO

KHACHIMO 250W ATX Power Supply SD-250AT

SKU CH-RGTK-RNWVM

An ATX power supply delivering 250 W with 80 PLUS Gold efficiency, Modern Standby support, Zero RPM fan mode and LLC resonant topology with DC-to-DC conversion

  • TypeATX
  • Modern Standby compatible for extremely fast wake-from-sleep times
  • 80 PLUS Gold certified for high efficiency and lower power consumption
  • Zero RPM fan mode switches off the fan at low and medium loads
  • Resonant LLC topology with DC-to-DC conversion delivers clean, consistent power
  • ATX form factor fits standard desktop builds

Modern Standby Power Supply

The KHACHIMO SD-250AT is a 250W ATX unit built for systems that require Modern Standby support. It delivers fast wake-from-sleep response and improved efficiency at low loads. This power supply suits compact or office PCs where quiet, efficient operation matters more than high-output headroom.

250W Gold Efficiency Headroom

Rated at 250W with 80 PLUS Gold certification, the unit runs efficiently across typical workloads, reducing consumption and heat. The 12V rail provides stable power for mainstream components, but the total wattage limits use with discrete graphics cards or high-core-count processors. Builders needing more than 250W continuous output should look elsewhere.

ATX Build Integration

The resonant LLC topology with DC-to-DC conversion supplies clean voltage and helps reduce coil whine. Zero RPM fan mode stops the fan at low and medium loads for near-silent operation. Standard ATX dimensions allow installation in compatible chassis, while Modern Standby compatibility frees the system to enter deeper sleep states.

Points forts

  • Modern Standby compatible for extremely fast wake-from-sleep times
  • 80 PLUS Gold certified for high efficiency and lower power consumption
  • Zero RPM fan mode switches off the fan at low and medium loads
  • Resonant LLC topology with DC-to-DC conversion delivers clean, consistent power
  • ATX form factor fits standard desktop builds

Caractéristiques

TypeATX

Questions sur cet article

Will the 250 W ATX unit power an older motherboard that still uses a 4-pin CPU connector?

The supply provides a standard 24-pin ATX connector and a 4-pin CPU connector, so it fits legacy boards directly.

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

At typical loads the fan remains off thanks to Zero RPM mode, and the system resumes from Modern Standby almost instantly.

Which cables come attached to the SD-250AT and what must I source separately?

Fixed cables include the 24-pin ATX and 4-pin CPU leads; any PCIe or extra peripheral connectors require separate adapters.

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