KHACHIMO R10 R11 T3640 T3650 550W power supply

550 W ATX power supply for desktop builds

This KHACHIMO unit delivers 550 W of continuous power in a standard ATX form factor. It is suited to mainstream desktop systems that require reliable, efficient energy delivery. The design supports Modern Standby for rapid wake-from-sleep behaviour. Builders seeking a Gold-rated supply for typical productivity or gaming rigs will find it a direct fit.

80 PLUS Gold efficiency with Zero RPM fan mode

Certified 80 PLUS Gold, the supply runs at high efficiency to reduce waste heat and lower power draw. At low and medium loads the cooling fan stops completely, enabling near-silent operation. Resonant LLC topology with DC-to-DC conversion further cuts coil whine and keeps temperatures down during everyday use.

Sustained-load behaviour from resonant LLC design

Under prolonged load the resonant LLC topology maintains clean, consistent voltage regulation. DC-to-DC conversion supports stable output across the rails, allowing the unit to sustain its rated output without the spikes seen in simpler designs. The fan remains off until thermal thresholds demand active cooling, so acoustic output stays minimal even during extended sessions.