KHACHIMO HK500-11UEPA 400W 80 PLUS Gold ATX power supply

1U 400W ATX Gold Power Supply

The KHACHIMO HK500-11UEPA is a 400 watt ATX power supply built in a 1U form factor. It targets system builders who need an 80 PLUS Gold unit for compact chassis or rackmount enclosures. Modern Standby compatibility allows extremely fast wake-from-sleep times and improved low-load efficiency. The resonant LLC topology with DC-to-DC conversion delivers clean, consistent power while reducing coil whine.

400W Output Limit and 1U Physical Constraint

The unit provides a maximum of 400 watts, so it suits modest single-GPU or integrated-graphics builds rather than high-end multi-GPU configurations. Its 1U height restricts installation to cases or server racks designed for that specific form factor. The Zero RPM fan mode stops the fan at low and medium loads for near-silent operation, but airflow still depends on the host chassis design. No other output ratings or connector counts are specified.

Verify Chassis Clearance and Power Requirements

Before ordering, confirm your case or rack accepts a 1U power supply and that the ATX connector layout matches your motherboard. Ensure the 400 watt capacity covers the peak draw of your CPU, graphics card, and all peripherals combined. Check that the supplied cables reach every component in your specific layout. No dimensions, weight, or detailed cable list are provided in the data.