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

KHACHIMO

KHACHIMO FLEX 1U K39 550W FLEX-600 power supply

SKU CH-8KTE-90DS5

An 80 PLUS Gold ATX unit delivering 550 W with Modern Standby support, Zero RPM fan mode and resonant LLC topology for quiet, efficient power

  • TypeATX
  • Faster wake-from-sleep with Modern Standby support
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Fan stops completely at low loads for silent running
  • Resonant LLC with DC-to-DC delivers clean, stable power
  • 550 W continuous output with 600 W peak capacity

Compact 1U Flex form factor

The KHACHIMO FLEX 1U K39 delivers 550W of continuous power in a 39 mm high chassis that fits standard Flex-600 bays. It targets system integrators and small-form-factor builders who need ATX-compliant output where full-height units cannot be installed.

Replaces bulkier ATX units

The unit upgrades installations that previously required a full-size power supply but lacked vertical clearance. The jump is worthwhile when a rack, slim tower or industrial enclosure demands 80 PLUS Gold efficiency and Modern Standby support in a 1U profile.

Sustained load behaviour

Resonant LLC topology with DC-to-DC conversion maintains tight voltage regulation during prolonged operation. Zero RPM fan mode keeps the unit silent at low and medium loads, while the fan engages only when thermal conditions require active cooling.

Highlights

  • Faster wake-from-sleep with Modern Standby support
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Fan stops completely at low loads for silent running
  • Resonant LLC with DC-to-DC delivers clean, stable power
  • 550 W continuous output with 600 W peak capacity

Specifications

TypeATX

Questions about this item

Will this 1U FLEX-600 unit fit my 39 mm rack depth?

The KHACHIMO FLEX 1U K39 measures 39 mm in height, matching the standard 1U form factor for compatible server and rackmount chassis.

What cable routing step is often missed when installing this PSU in a tight 1U case?

Route the 24-pin ATX and CPU power cables before sliding the unit in; the compact 1U depth leaves no room to connect them afterward.

How do I keep the Zero RPM fan mode working properly over time?

Clean the intake vents every few months to prevent dust build-up that would force the fan to spin at lower loads.

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