KHACHIMO YM-5501D 500W ATX Power Supply 80 PLUS Gold

500W ATX Gold Power Supply

The KHACHIMO YM-5501D delivers 500W of continuous power through an ATX form factor suited to modern desktop builds. It carries 80 PLUS Gold certification for high efficiency at typical loads. Resonant LLC topology with DC-to-DC conversion provides clean voltage regulation and supports low-power sleep states. This unit targets system integrators and DIY builders who need reliable, quiet power for mainstream configurations.

Upgrade from Bronze or unrated units

Moving from an 80 PLUS Bronze or non-certified supply to this Gold unit cuts wasted energy and reduces operating temperature under the same load. The efficiency gain is most valuable in systems that run for long periods or sit idle for hours. Modern Standby compatibility adds near-instant wake times, a benefit absent from older designs. Builders whose current PSU lacks DC-to-DC conversion will see tighter voltage regulation on minor rails.

Sustained load behaviour

Under continuous demand the fan remains off until medium loads are reached thanks to Zero RPM mode, keeping acoustic output near zero during light work. When the fan does engage, the LLC resonant topology limits coil whine while maintaining stable output. Gold-rated efficiency means less heat enters the chassis during extended sessions, helping case airflow stay balanced. The design favours consistent delivery over peak burst capability.