Logic Board (3.6GHz i3, Radeon Pro 555X, SSD)

Used Condition



Out of stock

Notify me when item is back in stock


  • This board includes an Intel 3.6GHz i3 (i3-8100) processor, Radeon Pro 555X (2GB) GPU and heatsink attached.
  • Versions of this board exist with and without SSD connector, but this particular board does include the PCIe SSD connector for installation of Apple's proprietary blade SSDs.

What's Included

  • 1 - Logic board
  • 1 - Heatsink

Identifying Numbers

  • APN : 661-12491

    Apple Part Numbers

    • Created for internal Apple use.
    • Never visible on the item.
  • PPN : 820-01237-07, 820-01237-A

    Printed Part Numbers

    • Created by manufacturers during production.
    • Always visible on the item.

Tech Specs

  • Onboard GPU: Intel 3.6GHz Core i3 (i3-8100)
  • Onboard GPU: AMD Radeon Pro 555X (2GB)


Lifetime - We guarantee this product for as long as you have it.


Find your device to verify compatibility.

Not Compatible




Model Number: {{formatString(device.model_number)}}
Order Number: {{formatString(device.order_number)}}
Model Identifier: {{formatString(device.model_identifier)}}
EMC Number: {{formatString(device.emc_number)}}
Notes: {{device.notes}}

No devices found

iMac 21.5" A2116
  • iMac19,2 Retina 4K Early 2019: MRT32LL/A (3.6 GHz Core i3)
  • iMac19,2 Retina 4K Early 2019: MRT42LL/A (3.0 GHz Core i5)
  • iMac19,2 Retina 4K Early 2019: BTO (3.2 GHz Core i7)