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Compact 1U silver power supply with rear fan and modular cables

KHACHIMO

KHACHIMO 850W 1U FLEX ATX Power Supply

SKU CH-ASBK-426W5

Compact 1U Flex ATX unit delivers 850W with 80 PLUS Gold efficiency, Modern Standby support, zero-RPM fan mode and resonant LLC plus DC-to-DC topology for clean, quiet power

  • Product typeATX
  • Modern Standby compatible for extremely fast wake-from-sleep and better low-load efficiency
  • 80 PLUS Gold certified for high efficiency, lower power consumption, 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, reduces coil whine and enables efficient sleep states
  • 1U FLEX ATX form factor fits compact ITX and NAS builds with 850W rated output

KHACHIMO 850W 1U FLEX ATX Power Supply

This new power supply delivers 850 watts of continuous power in a compact 1U form factor designed for FLEX ATX installations. It targets builders of small-form-factor servers, NAS appliances or workstations who need high output without the depth of a standard ATX unit.

Suits compact builds needing Gold efficiency

The 80 PLUS Gold rating and Zero RPM fan mode keep heat and noise low during typical workloads, while Modern Standby support enables rapid wake times. Builders requiring redundant power modules, hot-swap capability or a standard ATX footprint should look elsewhere.

Single-rail 850W output with LLC resonant topology

The resonant LLC design combined with DC-to-DC conversion provides tight voltage regulation across all rails, reducing coil whine and supporting efficient sleep states. If your chassis cannot accommodate a 1U FLEX ATX profile, this unit will not fit.

How it compares

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

Price $243.99
Pricier than about 71% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

Should I choose the 850W rating for a compact 1U FLEX ATX build?

The 850W rating is the single capacity offered for this 1U FLEX ATX form factor, so it is the version to select when your chassis and power budget call for 850 watts.

What does the 850W headline figure mean once the unit is installed in a real machine?

It means the supply can deliver up to 850 watts of continuous DC power to the components while meeting 80 PLUS Gold efficiency targets, keeping heat and fan noise lower under load.

How does the FLEX ATX interface cap what I can connect in practice?

The FLEX ATX form factor fits 1U and small ITX chassis, so the physical size limits cable routing and connector count to what the compact enclosure allows.

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