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KHACHIMO 425W ATX power supply unit in matte black finish

KHACHIMO

KHACHIMO 425W ATX Power Supply D425EF-03 80 PLUS Gold

SKU CH-THT2-JJYZQ

An ATX power supply delivering 425 watts with 80 PLUS Gold efficiency, zero-RPM fan mode and Modern Standby support

  • TypeATX
  • Modern Standby compatibility for fast wake times
  • 80 PLUS Gold certification reduces power draw and heat
  • Zero RPM fan mode stops the fan at low loads
  • Resonant LLC topology with DC-to-DC conversion delivers clean power
  • 425 W output suits Dell Precision T5820 and T7620 workstations

Purpose & Fit

The KHACHIMO 425W ATX unit is built for Dell Precision T5820 and T7620 workstations that require a direct replacement power supply. It fits the D425EF-03 and DPS-425FB A form factors used in those systems. It is not suited for standard ATX chassis or builds that need higher wattage or modular cables.

Sustained Output

The 80 PLUS Gold rating confirms the supply maintains high efficiency across typical workloads, so power draw stays low and voltage rails remain stable during long rendering or compute sessions. Resonant LLC topology with DC-to-DC conversion delivers clean, consistent power without the ripple that can appear on lesser designs under continuous load. Modern Standby support lets the system enter and exit low-power states quickly without rail instability.

Thermals & Acoustics

Zero RPM fan mode stops the fan completely at low and medium loads, giving near-silent operation during office tasks or idle periods. When the fan does spin, the high-efficiency design produces less waste heat, which keeps internal temperatures lower and reduces the need for aggressive fan curves. The combination of Gold efficiency and resonant topology also minimises coil whine for quieter overall performance.

Highlights

  • Modern Standby compatibility for fast wake times
  • 80 PLUS Gold certification reduces power draw and heat
  • Zero RPM fan mode stops the fan at low loads
  • Resonant LLC topology with DC-to-DC conversion delivers clean power
  • 425 W output suits Dell Precision T5820 and T7620 workstations

Specifications

TypeATX

Questions about this item

How loud does the 425W unit get when it runs all day under load?

At low and medium loads the Zero RPM Fan Mode stops the fan completely for near-silent operation; the 80 PLUS Gold efficiency keeps waste heat low so the fan spins up less often even during sustained use.

Which cables or connectors must my build already provide for this PSU to work?

The unit is a standard ATX power supply, so your case needs an ATX PSU mounting bracket and your motherboard requires a 24-pin main power connector plus the appropriate CPU and PCIe connectors for your components.

Will the D425EF-03 power older Dell T5820 or T7620 workstations without adapters?

Yes — the supplier title lists the T5820 and T7620 as compatible models, and the D425EF-03 / DPS-425FB A / Y097X / 0Y097X part numbers match those systems directly.

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