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Rectangular black ATX power supply unit with fan grille and power socket

KHACHIMO

KHACHIMO 800W ATX Power Supply FSP800-21FM

SKU CH-C03S-GMNEE

An 800 W ATX power supply tested for reliable operation in desktop builds

  • TypeATX
  • 800 W output powers demanding ATX builds
  • ATX form factor fits standard desktop cases
  • Tested working so it arrives ready to install
  • Good-quality components support stable daily operation
  • First listed by the manufacturer on 12 March 2024

800 W ATX Power Supply

The KHACHIMO FSP800-21FM is an ATX form-factor power supply rated at 800 W. It is intended for desktop builders who need a standard ATX unit for a new system build or a direct replacement. The unit has been tested and confirmed working before shipment.

800 watt continuous rating

The single specification that determines compatibility is the 800 W output rating. Buyers who require a higher sustained wattage for multi-GPU configurations or extreme overclocking should verify that this figure meets their total system draw before purchasing.

Standard ATX installation

Installation follows the normal ATX mounting pattern and connector layout used by most desktop cases. The most common issue is cable length or routing in compact chassis, so confirm that the fixed cables reach your motherboard and GPU without strain.

Highlights

  • 800 W output powers demanding ATX builds
  • ATX form factor fits standard desktop cases
  • Tested working so it arrives ready to install
  • Good-quality components support stable daily operation
  • First listed by the manufacturer on 12 March 2024

Specifications

TypeATX

Questions about this item

How much continuous power can the 800W rating deliver to a full system?

The 800W rating is the maximum combined output the unit is designed to supply across all rails under normal operating conditions.

Which ATX revision does the FSP800-21FM follow and what does that limit?

The unit conforms to the ATX form factor, which defines physical dimensions, connector placement and standard voltage rails for desktop chassis compatibility.

Will the standard ATX dimensions of the FSP800-21FM fit my mid-tower case?

The power supply uses the standard ATX form factor, so it mounts in any case designed for ATX units with the usual four-screw rear bracket.

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