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

KHACHIMO

KHACHIMO TDPS-800BB A 98Y2218 00WK807 power supply

SKU CH-BN18-GH49N

ATX power supply with 80 PLUS Gold efficiency, Zero RPM fan mode, Modern Standby compatibility and resonant LLC topology with DC-to-DC conversion

  • Product typeATX
  • Modern Standby gives faster wake times
  • 80 PLUS Gold certification lowers power draw and heat
  • Zero RPM fan mode stops the fan at low load
  • Resonant LLC with DC-to-DC conversion reduces coil whine
  • Compatible with V5000, V3500 and V3700 systems

Modern Standby Compatible ATX Power Supply

The KHACHIMO TDPS-800BB is an ATX power supply designed for systems that support Modern Standby. It enables extremely fast wake-from-sleep times and delivers better efficiency at low loads. This unit suits builders who want a new power supply that works with newer sleep states. It is not for systems that lack Modern Standby support or require a different form factor.

80 PLUS Gold Certified With Zero RPM Fan Mode

The unit carries 80 PLUS Gold certification for high efficiency operation, which reduces power consumption, noise, and temperatures. Its Zero RPM fan mode stops the cooling fan entirely at low and medium loads for near-silent operation. Resonant LLC topology with DC-to-DC conversion further cuts coil whine and supports energy-efficient sleep states. It is not for users who need active cooling at all load levels.

Resonant LLC Topology And DC-to-DC Conversion

This topology provides clean, consistent power delivery while reducing coil whine for quieter daily use. The design enables more energy efficient sleep states alongside Modern Standby compatibility. Build quality focuses on stable output and lower acoustic output in typical workloads. It is not for builds that require a different internal topology or lack ATX mounting points.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $295.99
Pricier than about 77% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

How do I install this ATX power supply and what is the step most people get wrong?

Mount the unit in the case with four screws, connect the 24-pin ATX, CPU and GPU cables, then route them behind the motherboard tray. The step most people miss is plugging in the CPU power cable before closing the side panel.

What maintenance or replacement will this power supply need later?

The Zero RPM fan mode keeps the fan off at low and medium loads, reducing wear. If the fan eventually becomes noisy or stops spinning under load, replace the fan assembly or the entire unit.

What limit shows up first under sustained use with this 800 W Gold unit?

Sustained loads near 800 W will hit the thermal limit first; the fan ramps up and the protection circuit may shut the unit down if airflow is restricted.

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