KHACHIMO -5V P8P9 400W PP-400V PP-300V power supply

ATX 400 W PSU for modern desktops

This ATX power supply delivers 400 W of continuous output and carries 80 PLUS Gold certification for high efficiency. It suits builders who want reliable power for standard desktop components and value low idle consumption. The unit supports Modern Standby so the system resumes from sleep almost instantly. It is not intended for high-end multi-GPU rigs or workstations that demand significantly more wattage.

Check ATX fit and cable needs

Verify that your chassis accepts a standard ATX power supply and that the included connectors match your motherboard, CPU and graphics card requirements. Confirm the physical depth of the unit clears any drive cages or cable routing channels in your case. Ensure the total system draw stays within the 400 W rating before ordering. No adaptor cables are mentioned in the specifications.

Sustained load with Zero RPM and LLC

Under continuous load the resonant LLC topology with DC-to-DC conversion keeps voltage regulation tight and reduces coil whine. The Zero RPM fan mode stays off at low and medium loads, so acoustics remain minimal during typical workloads. When the fan does spin, the Gold-rated efficiency limits waste heat, helping the unit run cooler over long sessions. The 300 V and 400 V designations indicate robust input and output voltage handling.