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Silver 1U Flex ATX power supply with 92 mm fan and modular cables

KHACHIMO

KHACHIMO HK400-92FP 300W 1U Flex ATX Power Supply

SKU CH-KHZ5-3SBKH

A 300 W 1U Flex ATX power supply with 80 PLUS Gold efficiency, zero-RPM fan mode and Modern Standby support for compact systems

  • TypeATX
  • Faster wake-from-sleep with Modern Standby support
  • Lower power draw and heat via 80 PLUS Gold efficiency
  • Near-silent operation at low loads with Zero RPM fan mode
  • Clean, stable power delivery through resonant LLC and DC-to-DC design
  • Reduced coil whine for quieter system performance

1U Flex ATX 300 W supply for compact builds

This 1U Flex ATX unit delivers 300 W of continuous power in a form factor designed for slim enclosures such as POS terminals, NAS appliances and ATM chassis. It targets system integrators and hobbyists who need a short-depth PSU that fits restrictive 1U cavities without sacrificing ATX connector compatibility.

Sustained-load efficiency and acoustic profile

The 80 PLUS Gold certification means the supply maintains high efficiency across typical workloads, reducing waste heat and keeping internal temperatures lower during extended operation. Resonant LLC topology with DC-to-DC conversion provides clean, stable rails under constant demand, while the zero-RPM fan mode stops the 92 mm fan completely at low and medium loads for near-silent running.

Installation constraints and common pitfalls

The 1U height and flexible ATX dimensions allow the unit to slide into shallow bays where standard PSUs will not fit, but cable routing must be planned carefully because the short chassis leaves little room for bulky harnesses. Builders should verify that their motherboard and peripheral connectors match the supplied cable set before ordering, as proprietary pin-outs in some OEM chassis can prevent a direct swap.

Highlights

  • Faster wake-from-sleep with Modern Standby support
  • Lower power draw and heat via 80 PLUS Gold efficiency
  • Near-silent operation at low loads with Zero RPM fan mode
  • Clean, stable power delivery through resonant LLC and DC-to-DC design
  • Reduced coil whine for quieter system performance

Specifications

TypeATX

Questions about this item

How loud and hot does the HK400-92FP get when running all day?

The 80 PLUS Gold efficiency and Zero RPM fan mode keep noise and heat low; the fan stays off at low and medium loads, and the resonant LLC topology with DC-to-DC conversion reduces coil whine for quieter operation.

What connectors or hardware must I already have to install this 1U Flex ATX unit?

You need a chassis that accepts a 1U Flex ATX form-factor power supply and standard ATX power cables for the motherboard, CPU and drives.

Will the HK400-92FP work reliably with older components I plan to keep?

Yes, the ATX output and DC-to-DC conversion deliver clean, consistent power compatible with legacy parts, while Modern Standby support enables efficient sleep states on newer platforms.

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