KHACHIMO 4U 500W ATX Switching Power Supply FSP500-60WSA-5K

4U ATX Gold Power Supply

This 500 W ATX unit fits 4U rackmount chassis and delivers 80 PLUS Gold certified efficiency. Modern Standby support enables rapid wake-from-sleep and improved low-load performance. The resonant LLC topology with DC-to-DC conversion supplies clean, stable power while reducing coil whine. It suits servers, workstations and always-on systems needing quiet, reliable operation.

Sustained Load Behaviour

At low and medium loads the Zero RPM fan mode stops the cooling fan entirely for near-silent running. The Gold-rated efficiency keeps heat output and power draw low during continuous operation. LLC resonant conversion maintains tight voltage regulation and clean power delivery under steady demand. This combination supports long-duration workloads without thermal or acoustic penalty.

Pre-Installation Checks

Verify the chassis accepts a 4U form-factor ATX supply and provides the required mounting pattern. Confirm the mainboard and peripherals match the connector set and power delivery of a standard ATX design. Ensure the system can utilise Modern Standby sleep states if fast wake is desired. Buyers needing higher wattage or a different form factor should consider other models.