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Rectangular ATX power supply unit with matte black finish and cooling fan grille

KHACHIMO

KHACHIMO PWS-902-1R 900W ATX power supply

SKU CH-72FW-9E3YB

A 900W ATX unit with 80 PLUS Gold efficiency, Zero RPM fan mode, LLC resonant topology with DC-to-DC conversion and Modern Standby compatibility

  • TypeATX
  • Modern Standby support for faster wake times
  • 80 PLUS Gold efficiency lowers 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
  • 900W ATX capacity powers demanding builds

900W ATX power supply for modern standby systems

The KHACHIMO PWS-902-1R delivers 900W of continuous power through an ATX form factor. It is built for PCs that use Modern Standby sleep states and demand high efficiency at low loads. The 80 PLUS Gold certification confirms reduced waste heat and lower electricity draw across typical workloads. This unit suits builders who want quiet, efficient power for a contemporary desktop.

Sustained load behaviour with resonant LLC topology

Under prolonged load the resonant LLC topology with DC-to-DC conversion keeps voltage regulation tight and ripple low. The design minimises coil whine even when the supply runs near its rated capacity for extended periods. Thermal output stays controlled because the Gold-rated efficiency reduces the energy lost as heat. The fan remains off during low and medium loads through the Zero RPM mode, activating only when thermal conditions require active cooling.

Replaces older units lacking modern standby support

This supply replaces ATX units that cannot maintain the low-power states required by Modern Standby hardware. The upgrade is worthwhile when the existing power supply causes slow wake times or fails to meet the efficiency targets of current sleep specifications. It also supersedes noisier designs that lack a zero-fan mode or exhibit audible coil whine under load. Builders staying with an older platform that does not use Modern Standby will not see these benefits.

Highlights

  • Modern Standby support for faster wake times
  • 80 PLUS Gold efficiency lowers 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
  • 900W ATX capacity powers demanding builds

Specifications

TypeATX

Questions about this item

How loud does the 900W unit get during long sessions?

The Zero RPM fan mode stops the fan completely at low and medium loads, and the resonant LLC topology with DC-to-DC conversion reduces coil whine for quieter operation all day.

Which cables must my build already provide for this ATX supply?

The unit uses standard ATX connectors, so your motherboard, CPU and graphics cards need matching 24-pin, EPS and PCIe sockets to plug in directly.

Will the Modern Standby support work with my older motherboard?

Modern Standby requires a compatible platform; on an older board the supply still delivers 80 PLUS Gold efficiency and stable power, but the fast wake feature will not activate.

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