KHACHIMO ATX-1245GA1 450W 80 PLUS Gold power supply

Modern Standby Ready PSU

The KHACHIMO ATX-1245GA1 is a 450W ATX power supply certified 80 PLUS Gold for high efficiency. It targets builders who want lower power draw and cooler, quieter operation in a modern desktop. Resonant LLC topology with DC-to-DC conversion delivers clean, consistent power and supports energy-efficient sleep states. The unit is new and designed for standard ATX installations.

Upgrade from lower efficiency units

Replacing an older or uncertified power supply with this Gold-rated model cuts waste heat and reduces coil whine through its advanced topology. The jump is worthwhile when building a system that uses Modern Standby for instant wake and deeper low-power states. Zero RPM fan mode keeps the unit silent at low and medium loads, removing fan noise during everyday tasks. It does not suit builds that need more than 450W of continuous output.

ATX form factor and Gold limits

The ATX form factor fits standard cases but offers no modular cabling, so unused cables remain inside the chassis. Gold certification guarantees 80% efficiency at typical loads, yet efficiency drops at very light or peak loads beyond the certified range. Zero RPM mode depends on internal temperature thresholds and may not activate in poorly ventilated cases. Modern Standby support requires a compatible motherboard and operating system to function.