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Green circuit board with multiple connectors and components

Ruth's sister

Ruth's sister Internal Power Cable for iMac 24" A1225 240W 250W

SKU CH-C3FX-AZ7A9

Replacement power supply board for 24-inch iMac A1225, compatible with 240 W and 250 W units

  • Compatible with iMac 24" A1225 models
  • Supports 240W and 250W power supplies
  • Replaces MB418 MB419 MB420 part numbers
  • Matches ADP-240AF ADP-250AF PA-3241-02A boards

Replacement Power Board for 24" iMac A1225

This internal power board is designed for the 24-inch iMac model A1225 and replaces part numbers ADP-250AF, ADP-240AF, PA-3241-02A, MB418, MB419 and MB420. It suits technicians or owners repairing a unit that has lost power delivery or shows board-level faults. It is not for users whose machine requires a different form factor or connector layout.

240W and 250W Rating for Standard Operation

The board is rated for 240W and 250W output, matching the original supply specification for normal desktop workloads. Thermals and acoustic profile remain consistent with the factory design when installed correctly. Power draw scales with system load and no auxiliary cooling changes are required.

How it compares

Measured against everything we stock in Internal PSU & Riser Cables, at today’s prices. Recalculated every night.

Price $77.99
Pricier than about 90% of the 7,839 comparable items (median $14.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How do I install the power board inside the iMac 24" A1225, and which connector step do people often miss?

Remove the display and logic board, then seat the ADP-240AF or ADP-250AF board onto the PA-3241-02A connector; the step most missed is fully locking that connector before reassembly.

What maintenance or replacement will the MB418, MB419 or MB420 power supply board need later?

No routine maintenance is required; replace the board only if the iMac fails to power on or shows unstable voltage after years of service.

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