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Compact 1U silver power supply unit with fan grille and cable connectors

KHACHIMO

KHACHIMO FLEX 1U K39 450W Power Supply ENP-7145B

SKU CH-3TDM-1HB95

A 450 W ATX supply with 80 PLUS Gold efficiency, zero-RPM fan mode and Modern Standby support for quiet, low-power systems

  • TypeATX
  • Faster wake-from-sleep and better low-load efficiency with Modern Standby support
  • Lower power consumption, less noise and cooler operation through 80 PLUS Gold certification
  • Near-silent running at low and medium loads via Zero RPM fan mode
  • Clean, consistent power delivery and reduced coil whine from resonant LLC with DC-to-DC conversion
  • Compact 1U form factor fits small chassis while delivering 450W

Compact 1U 450W ATX Power Supply

The KHACHIMO FLEX K39 is a 1U form-factor ATX unit rated at 450 watts, designed for space-constrained chassis such as rack-mount servers or slim workstations. It delivers standard ATX power in a shallow 39 mm height that fits where full-height units cannot. Modern Standby compatibility enables rapid wake-from-sleep transitions and improved low-load efficiency.

Suited for low-profile builds

This supply suits builders assembling 1U servers, compact workstations or HTPC cases that demand quiet operation; the Zero RPM fan mode stops the fan completely at low and medium loads. It is not for systems requiring higher wattage headroom, multiple GPU power connectors, or full-height ATX dimensions.

Integrates into tight enclosures

The unit uses resonant LLC topology with DC-to-DC conversion to provide clean power and reduce coil whine, supporting energy-efficient sleep states. Its 80 PLUS Gold certification lowers consumption and heat output, easing thermal management in dense layouts. Standard ATX connectors simplify installation without proprietary cables.

Punti di forza

  • Faster wake-from-sleep and better low-load efficiency with Modern Standby support
  • Lower power consumption, less noise and cooler operation through 80 PLUS Gold certification
  • Near-silent running at low and medium loads via Zero RPM fan mode
  • Clean, consistent power delivery and reduced coil whine from resonant LLC with DC-to-DC conversion
  • Compact 1U form factor fits small chassis while delivering 450W

Caratteristiche tecniche

TypeATX

Domande su questo articolo

What motherboard power connectors does the K39 450W unit need to start up?

It requires a standard 24-pin ATX connector plus the CPU EPS connector used by your motherboard.

Will the 80 PLUS Gold certification still benefit me if I keep an older graphics card?

Yes, the efficiency rating applies to the power supply itself regardless of which GPU is installed.

How can I confirm the Zero RPM fan mode is active after assembly?

At low system load listen for fan noise; silence means the fan has stopped as designed.

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