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Compact 1U silver power supply unit with rear fan grille and DC input connector

KHACHIMO

KHACHIMO 48V 150W 1U DC power supply

SKU CH-PJTJ-W14KK

A 48 V, 150 W ATX power supply with 80 PLUS Gold efficiency, zero-RPM fan mode and resonant LLC topology for quiet, efficient operation

  • TypeATX
  • Modern Standby compatibility for fast wake-from-sleep and better low-load efficiency
  • 80 PLUS Gold certification for high efficiency, lower power use, less noise and cooler temperatures
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent operation
  • Resonant LLC topology with DC-to-DC conversion delivers clean power and reduces coil whine
  • 150 W output at 48 V DC in a compact 1U form factor

Compact 1U 48 V DC unit

This KHACHIMO power supply delivers 150 W from a 48 V DC source in a 1U ATX form factor. It targets builders of compact servers, embedded appliances or space-constrained workstations who need efficient DC-to-DC conversion without a bulky AC front-end.

Replacing an AC-to-DC brick

The unit removes the external AC adapter and internal DC-DC board combo found in many 1U chassis, cutting cable clutter and eliminating a conversion stage. The efficiency gain is worthwhile when the rack or cabinet already provides a 48 V DC bus and the load stays within the 150 W rating.

Fits a DC-distribution rack build

Installation requires a 48 V DC feed with appropriate polarity and current capacity, plus standard ATX motherboard and peripheral connectors. The resonant LLC topology with DC-to-DC conversion reduces coil whine and supports modern standby sleep states, freeing thermal headroom in dense 1U enclosures.

Highlights

  • Modern Standby compatibility for fast wake-from-sleep and better low-load efficiency
  • 80 PLUS Gold certification for high efficiency, lower power use, less noise and cooler temperatures
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent operation
  • Resonant LLC topology with DC-to-DC conversion delivers clean power and reduces coil whine
  • 150 W output at 48 V DC in a compact 1U form factor

Specifications

TypeATX

Questions about this item

Will this 1U power supply fit a standard ATX chassis?

The unit follows the ATX form factor in a 1U height, so it fits any case or server rack designed for 1U ATX supplies.

How do I enable the Zero RPM fan mode during installation?

Zero RPM activates automatically at low and medium loads; no BIOS or software setting is required, just ensure the fan header is connected.

What maintenance does the 80 PLUS Gold certified unit need over time?

Periodically clean dust from the intake and exhaust vents to maintain airflow; the fan bearing is sealed and the LLC resonant topology reduces component stress.

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