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Compact 1U 300W ATX power supply unit with gold finish

KHACHIMO

KHACHIMO 1U 300W ATX power supply 80 PLUS Gold

SKU CH-5CKF-5SN3E

A compact 1U ATX unit delivering 300 W with 80 PLUS Gold efficiency, Modern Standby support, zero-RPM fan mode and resonant LLC topology for quiet, stable power

  • TypeATX
  • Modern Standby support gives extremely fast wake-from-sleep and better low-load efficiency
  • 80 PLUS Gold certified for high efficiency, lower power use, less noise and cooler temps
  • 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, consistent power and reduces coil whine
  • 300 W ATX output in a compact 1U form factor for space-constrained builds

Compact 1U ATX power supply

The KHACHIMO 1U unit delivers 300 W of continuous power in a slim ATX form factor designed for rack-mount and small-form-factor builds. Its 80 PLUS Gold certification ensures high efficiency across typical loads, reducing waste heat and operating cost. Modern Standby compatibility enables rapid wake-from-sleep transitions for responsive system behaviour.

Replaces standard-height PSUs in tight enclosures

This supply fits where full-height ATX units cannot, making it the logical upgrade when chassis height is restricted to 1U. The efficiency jump from basic Bronze or unrated units is worth it when electricity cost, thermal headroom or acoustic targets matter. Resonant LLC topology with DC-to-DC conversion tightens voltage regulation and supports deeper sleep states without coil whine.

Suits 1U servers, HTPCs and embedded appliances

Builders assembling shallow rack servers, living-room PCs or industrial boxes will appreciate the zero-RPM fan mode that keeps idle noise near silent. Buyers needing more than 300 W for multi-GPU or high-core-count workstations should look at higher-capacity models. Systems requiring redundant or hot-swap power modules are not addressed by this single-unit design.

Helstu kostir

  • Modern Standby support gives extremely fast wake-from-sleep and better low-load efficiency
  • 80 PLUS Gold certified for high efficiency, lower power use, less noise and cooler temps
  • 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, consistent power and reduces coil whine
  • 300 W ATX output in a compact 1U form factor for space-constrained builds

Tæknilýsing

TypeATX

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Does the 1U height fit standard ATX mounting holes?

Yes, the supply uses the ATX form factor with standard mounting-hole spacing, so it secures in any chassis designed for ATX units.

What is the most common mistake when installing this power supply in a rack?

Forgetting to leave clearance behind the rear fan grille; the Zero RPM Fan Mode still needs airflow when the fan spins up under load.

How long does the fan typically last before it needs replacement?

The fan is rated for continuous operation at 80 PLUS Gold efficiency levels; under normal loads it runs only at medium or high load, extending its service life well beyond typical sleeve-bearing fans.

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