KHACHIMO For FSP SPI400A8BB 400W ATX Power Supply

KHACHIMO 400W ATX Power Supply

This KHACHIMO unit replaces the FSP SPI400A8BB and compatible SPI350 models in ATX systems. It delivers 400W of continuous power with 80 PLUS Gold efficiency for lower running costs and reduced heat. Modern Standby compatibility enables extremely fast wake-from-sleep times. The resonant LLC topology with DC-to-DC conversion provides clean, stable output for reliable operation.

Suitable for standard ATX builds needing 400W

This supply fits PCs requiring an ATX form factor unit rated at 400W with Gold-class efficiency. Builders wanting silent idle operation benefit from the Zero RPM fan mode that stops the fan at low and medium loads. Systems needing higher wattage than 400W should look at a higher-capacity unit. Compact chassis requiring SFX or TFX form factors cannot use this ATX-sized supply.

400W rated output

The 400W rating is the single figure that determines whether this unit meets the build's power budget. It must cover the combined load of the CPU, graphics card, drives and peripherals under full load. If the total system draw exceeds 400W, a higher-rated supply is required. The 80 PLUS Gold certification ensures efficient conversion at typical loads.