KHACHIMO 3910 300W 8Pin power supply

300W ATX power supply for modern standby PCs

The KHACHIMO 3910 delivers 300W through a single 8-pin connector and meets the ATX form factor. It targets builders who need a compact, efficient unit for small-form-factor or office systems that rely on fast wake-from-sleep behaviour. Buyers who require multiple PCIe power cables or higher continuous output for discrete graphics cards should look elsewhere.

Sustained load behaviour with gold efficiency

The 80 PLUS Gold certification means the unit maintains high efficiency across typical workloads, reducing waste heat and keeping internal temperatures lower during extended use. Resonant LLC topology with DC-to-DC conversion supplies clean, consistent power under continuous demand while minimising coil whine. The zero-RPM fan mode stays active through low and medium loads, so the power supply runs silently until thermal conditions require active cooling.

Modern standby compatibility decides fit

This power supply is built for Modern Standby support, enabling extremely fast wake times and improved low-load efficiency that standard ATX units may not provide. If the target motherboard and operating system do not implement Modern Standby, the key advantage of this model goes unused. Verify platform support before purchase.