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Rectangular black ATX power supply unit with cooling fan and cable connectors

KHACHIMO

KHACHIMO GPS-850HB C 800W ATX Power Supply

SKU CH-9S5T-RWG9N

ATX 800W PSU with 80 Plus Gold efficiency, zero-RPM fan mode, LLC resonant topology and Modern Standby support

  • Product typeATX
  • 80 PLUS Gold certification cuts electricity use and heat
  • Modern Standby support gives near-instant wake from sleep
  • Zero RPM fan mode stops the fan at low loads for silent running
  • Resonant LLC topology with DC-to-DC conversion delivers clean power and reduces coil whine
  • 800 W ATX output powers demanding builds with stable voltage

ATX 800W Platinum power supply

The KHACHIMO GPS-850HB C delivers 800W of continuous power in a standard ATX form factor. It carries 80 PLUS Gold certification for high efficiency across typical loads. Modern Standby compatibility enables extremely fast wake-from-sleep times and improved low-load efficiency. This unit targets system builders who need reliable, efficient power for modern desktop platforms.

Replacing older or lower-efficiency units

Upgrading from a supply without Gold certification cuts power draw, reduces waste heat and lowers audible noise. The resonant LLC topology with DC-to-DC conversion provides cleaner voltage regulation and suppresses coil whine. The jump is worthwhile when building or refreshing a system that spends long periods at idle or light load where Modern Standby and zero-fan operation matter.

Sustained-load behaviour and acoustics

Under continuous demand the resonant LLC design maintains stable output while keeping component stress low. Zero RPM fan mode keeps the cooling fan off at low and medium loads for near-silent operation. When load rises the fan engages to maintain safe temperatures without abrupt speed changes. The topology supports efficient sleep states throughout extended uptime.

How it compares

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

Price $297.99
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

Will the ATX form factor fit my standard mid-tower case?

Yes, the ATX form factor matches the standard mounting holes and dimensions used by most mid-tower and full-tower cases.

Which cables must be connected during installation to avoid a no-post issue?

Connect the 24-pin ATX motherboard cable and the 8-pin (4+4) CPU power cable securely; missing either will prevent the system from starting.

How do I keep the Zero RPM fan mode working quietly over time?

Use compressed air to clear dust from the fan grill and internal heatsinks every few months so the fan can stay off at low and medium loads.

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