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Compact silver 1U PSU with rear fan grille and power socket

KHACHIMO

KHACHIMO FLEX POS Small 1U 400W 500W Power Supply

SKU CH-A0X6-RQJQF

A 1U ATX power supply rated 400 W continuous and 500 W peak with 80 PLUS Gold efficiency, zero-RPM fan mode and Modern Standby support

  • TypeATX
  • Modern Standby compatibility for near-instant wake and better low-load efficiency
  • 80 PLUS Gold certification delivering high efficiency, lower power draw and cooler operation
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent running
  • Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and reduces coil whine
  • Rated 400 W continuous with 500 W peak capacity for reliable delivery

Compact 1U PSU for Small Systems

The KHACHIMO FLEX POS Small 1U is a new ATX switching power supply rated at 400 W continuous with a 500 W peak capacity. It is designed for slim 1U chassis where space is limited but reliable power delivery is still required. The unit suits builders of compact workstations, point-of-sale terminals or embedded servers who need a high-efficiency PSU in a low-profile form factor.

80 PLUS Gold Efficiency for Quiet Builds

This unit fits users who want 80 PLUS Gold certified efficiency and Modern Standby compatibility for fast wake times and low idle draw. The Zero RPM fan mode keeps the system near-silent at low and medium loads. Builders needing more than 500 W peak power or a standard ATX height unit should look at something else.

Standard ATX Connections in a 1U Housing

Installation follows normal ATX cabling routines inside a 1U enclosure; the resonant LLC topology with DC-to-DC conversion delivers clean power and reduces coil whine. The main difficulty is cable routing in very tight 1U cases where clearance around the connector area is minimal.

Highlights

  • Modern Standby compatibility for near-instant wake and better low-load efficiency
  • 80 PLUS Gold certification delivering high efficiency, lower power draw and cooler operation
  • Zero RPM fan mode stops the fan at low and medium loads for near-silent running
  • Resonant LLC topology with DC-to-DC conversion provides clean, consistent power and reduces coil whine
  • Rated 400 W continuous with 500 W peak capacity for reliable delivery

Specifications

TypeATX

Questions about this item

What motherboard power connectors does this ATX power supply need to function?

It uses the standard ATX 24-pin main connector plus a 4+4-pin CPU power connector to deliver up to 400 W continuous power.

Can the 400 W continuous rating support a modern GPU alongside older components?

The 80 PLUS Gold efficiency and DC-to-DC design keep voltage stable for a mid-range graphics card and legacy drives within the 400 W limit.

How do I confirm the Zero RPM fan mode is active after installation?

Under light loads the fan stays completely still; you will hear no spinning noise until the system draws more power.

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