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Rectangular ATX power supply unit, matte metal finish, label shows 400W 18V 22.3A

KHACHIMO

KHACHIMO RPS-400-18-SF 400W 18V 22.3A power supply

SKU CH-AE5W-64ZWY

Delivers 400 W at 18 V and 22.3 A in an ATX switching design

  • Product typeATX
  • Delivers 400 W for demanding components
  • Stable 18 V rail protects sensitive electronics
  • High 22.3 A current handles peak loads
  • Verified working unit ensures reliable operation

KHACHIMO 400W ATX power supply

This KHACHIMO RPS-400-18-SF is a 400 W ATX switching power supply delivering 18 V at 22.3 A. It arrives new and has been tested working. The unit suits builders assembling or repairing a desktop that requires this specific voltage and current profile. Good build quality supports reliable daily operation.

Suits ATX builds needing 18 V output

This supply fits systems designed for an 18 V rail at 22.3 A. It is not for builds that require a different voltage, higher total wattage, or alternative form factors. Buyers needing modular cabling or specific efficiency certifications should look elsewhere. Those without an ATX-compatible chassis cannot use this unit.

How it compares

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

Price $105.99
Cheaper than about 65% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeATX

Questions about this item

Does my motherboard need a 24-pin ATX connector to use this 400 W unit?

Yes, the RPS-400-18-SF is an ATX-type supply, so the board must provide a standard 24-pin ATX power socket.

Can I keep my older ATX chassis and still mount this 18 V supply?

The unit follows the ATX form factor, so it fits existing ATX cases without modification.

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