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Compact 1U 300W ATX PSU with 80 PLUS Gold badge

KHACHIMO

KHACHIMO SZ-3301P 300W 80 PLUS Gold power supply

SKU CH-0JY5-ZRGDC

An 80 PLUS Gold 300 W ATX power supply with zero-RPM fan mode and resonant LLC topology for silent, efficient Modern Standby operation

  • TypeATX
  • Modern Standby support enables faster wake-from-sleep and better low-load efficiency
  • 80 PLUS Gold certification delivers high efficiency for lower power consumption 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 provides clean, consistent power and reduces coil whine
  • 300W ATX power supply in a compact 1U form factor for space-constrained builds

Compact 1U ATX 300W Gold unit

The KHACHIMO SZ-3301P is a 1U form-factor ATX power supply rated at 300W and certified 80 PLUS Gold. It targets compact server chassis and small-form-factor workstations where vertical space is at a premium and efficient power delivery is required.

Best for dense 1U racks and low-profile builds

This unit suits integrators deploying 1U rackmount systems or slim desktop enclosures that demand Gold-class efficiency and Modern Standby support. Builders needing higher wattage for discrete graphics cards or multi-drive arrays should consider larger-capacity alternatives.

Steady output with silent low-load operation

Under sustained load the resonant LLC topology with DC-to-DC conversion maintains tight voltage regulation while suppressing coil whine. At light and medium loads the Zero RPM fan mode stops the fan completely, so acoustic output stays near zero until thermal thresholds require active cooling.

Points forts

  • Modern Standby support enables faster wake-from-sleep and better low-load efficiency
  • 80 PLUS Gold certification delivers high efficiency for lower power consumption 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 provides clean, consistent power and reduces coil whine
  • 300W ATX power supply in a compact 1U form factor for space-constrained builds

Caractéristiques

TypeATX

Questions sur cet article

Does this 300W unit need a standard ATX motherboard connector to power on?

Yes, it uses an ATX form factor so it plugs directly into a standard ATX motherboard power socket.

Will the Zero RPM fan mode still engage if I pair this Gold-rated supply with an older CPU that idles higher?

The fan stops at low and medium loads; older CPUs may keep the load above the threshold, so the fan could stay on.

How can I confirm the 80 PLUS Gold efficiency is active after installation?

Monitor power draw at the wall under typical load; Gold certification means the unit should draw noticeably less AC power than a non-rated supply for the same DC output.

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