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Compact silver 1U flex ATX power supply unit with rear fan grille and cable bundle

KHACHIMO

KHACHIMO FSP ITX HTPC FLEX 1U K39 600W Power Supply

SKU CH-Y98C-6C663

A 600 W ATX power supply for ITX and HTPC builds with 80 PLUS Gold efficiency, zero-RPM fan mode, Modern Standby support and resonant LLC DC-to-DC topology

  • Product typeATX
  • Modern Standby support for near-instant wake times
  • 80 PLUS Gold efficiency cuts power draw and heat
  • Zero RPM fan mode keeps operation silent at low loads
  • Resonant LLC with DC-to-DC delivers clean, stable power
  • 600 W output in a compact 39 mm FLEX 1U form factor

Compact 600 W Flex ATX Supply

The KHACHIMO FSP K39 is a 600 W Flex ATX power supply built for small-form-factor PCs and 1 U rack appliances. It delivers full ATX power in a 39 mm high chassis that fits slim HTPC cases and shallow server nodes. Modern Standby support enables rapid wake-from-sleep and improved low-load efficiency. An 80 PLUS Gold rating confirms high conversion efficiency across typical loads.

Suited for high-density builds.

This unit targets builders assembling compact workstations, digital-signage players or 1 U servers that require a Flex ATX footprint and 600 W of continuous power. The Zero RPM fan mode keeps acoustics near zero at idle and moderate loads, benefiting living-room or office deployments. Builders using full-size ATX cases with standard PSU mounting brackets should look elsewhere, as the physical dimensions and screw pattern differ from conventional ATX power supplies.

600 W continuous output in a 39 mm Flex ATX form

The single deciding specification is the 600 W rated output delivered within the 39 mm Flex ATX envelope. If your chassis accepts a Flex ATX supply and your components demand up to 600 W, this model meets the requirement; if the case only fits a thinner profile or the build needs more than 600 W, another solution is required.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $229.99
Pricier than about 69% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

What case clearance is needed for the 1U FLEX form factor?

The unit is a 1U FLEX design that fits standard 1U rack or HTPC chassis with matching mounting holes and rear-panel cut-out.

How do I enable the zero-RPM fan mode?

Zero-RPM mode activates automatically when the load is low or medium; no BIOS or software setting is required.

When should the internal fan be cleaned or replaced?

Clean dust from the fan intake every six to twelve months; replace the fan only if bearing noise appears after extended use.

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