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Rectangular silver ATX power supply unit with fan grille and power connectors

KHACHIMO

KHACHIMO 300W Power Supply WS-C4948-S DS-C48S-300AC

SKU CH-MECZ-E10FA

An ATX power supply delivering 300 W with 80 PLUS Gold efficiency, Modern Standby support, Zero RPM fan mode and resonant LLC topology with DC-to-DC conversion for clean, quiet power

  • TypeATX
  • Modern Standby compatible for extremely fast wake-from-sleep times
  • 80 PLUS Gold certified for high efficiency and lower power consumption
  • 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
  • ATX form factor fits standard desktop builds

300W ATX Power Supply

The KHACHIMO WS-C4948-S is a 300 watt ATX power supply built for desktop systems that demand efficient and reliable energy delivery. It suits builders upgrading office workstations or compact home PCs where steady power matters more than extreme wattage. Buyers needing higher output for multi-GPU rigs should look elsewhere.

80 PLUS Gold and Zero RPM Mode

Gold certification means the unit runs at high efficiency across typical loads, reducing heat and electricity use. The Zero RPM fan mode stops the cooling fan completely at low and medium loads, giving near-silent operation during everyday tasks. Resonant LLC topology with DC-to-DC conversion further cuts coil whine and supports modern sleep states.

Modern Standby and Connector Layout

Modern Standby compatibility enables extremely fast wake-from-sleep times and better low-load efficiency for responsive daily use. The ATX form factor fits standard chassis mounting points, while the included cabling supports typical motherboard and peripheral connections. Builders requiring modular cables or extra PCIe plugs will need a different unit.

Points forts

  • Modern Standby compatible for extremely fast wake-from-sleep times
  • 80 PLUS Gold certified for high efficiency and lower power consumption
  • 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
  • ATX form factor fits standard desktop builds

Caractéristiques

TypeATX

Questions sur cet article

Will the fan need replacement if it stops spinning at low loads?

The Zero RPM Fan Mode stops the fan at low and medium loads, reducing wear. Under heavy load the fan runs normally and is designed for continuous operation.

What limits output first during sustained full-load use?

The 300 W rating is the hard ceiling; the 80 PLUS Gold efficiency keeps heat lower so thermal protection rarely triggers before the power limit.

How loud and hot does it get when running all day?

Zero RPM mode keeps it silent at idle, while 80 PLUS Gold efficiency cuts waste heat. At full load the fan runs but stays quieter than non-Gold units.

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