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Green circuit board with black connectors and silver components

Ruth's sister

Ruth's sister A1419 ADP-300AF PA-1311-2A internal power cable

SKU CH-25D9-E38BA

Replacement power supply board for 27-inch iMac models A1419 from 2012 to 2017

  • Direct replacement for 27-inch iMac A1419 models 2012-2017
  • ADP-300AF board restores power delivery to the system
  • PA-1311-2A part number matches original Apple supply
  • Universal fit simplifies installation across compatible units

ADP-300AF power board for iMac A1419

The ADP-300AF power board replaces the internal supply in 27-inch iMac A1419 models released between 2012 and 2017. It is a direct-fit part for owners whose original board has failed or shows unstable voltage output. The component is new and matches the PA-1311-2A reference used in those systems.

Installation fits the existing chassis mounts

The board aligns with the factory screw points and connector layout inside the 27-inch enclosure. Technicians should disconnect the AC inlet and logic-board cables before removing the old unit. A common issue is damaging the display-data ribbon when the panel is lifted, so careful routing is essential. Builders without macOS diagnostic tools may find post-install verification difficult.

How it compares

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

Price $112.99
Pricier than about 91% 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 can I confirm the ADP-300AF board is working after installation?

Power on the iMac and verify it boots to the desktop without shutdowns; the fan should spin and the system must remain stable under normal use.

What is included and what must I source separately for the A1419 power board?

The listing supplies the ADP-300AF power board only; you will need to provide mounting screws, thermal pads if required, and any cables not already present in the iMac.

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