KHACHIMO WS-C4948E-F DC 300W Power Supply

300W ATX Power Supply

The KHACHIMO WS-C4948E-F is a 300 watt ATX power supply built for systems that prioritise quiet, efficient operation. It suits office workstations and home PCs that use modern standby sleep states and want low idle power draw. The 80 PLUS Gold rating and resonant LLC topology with DC-to-DC conversion deliver clean voltage regulation and reduced coil whine. A zero RPM fan mode keeps the unit silent at low and medium loads.

Compatibility Check

Verify that your chassis accepts a standard ATX form factor supply and that the combined DC output of 300 watts covers your CPU, graphics card and peripherals. Confirm the motherboard uses a 24-pin ATX connector and the required CPU and PCIe cables are present for your components. Ensure the case ventilation can handle the unit's airflow direction without obstruction. No specific cable lengths or connector counts are provided in the data.

Upgrade Context

This unit replaces older, lower-efficiency supplies that lack modern standby support or run their fans continuously at idle. The jump is worthwhile when moving from a non-modular bronze or unrated design to gain quieter operation and faster wake times. It is not for builds that need higher wattage headroom, multiple GPU power cables, or server-grade redundancy features. The 49 and 29 references in the supplier code denote specific part revisions only.