I was replying to @JazzTechie about the pins, and I got to wondering if the Orange Pi CM would work on the Raspberry Pi IO Board, and it does.
@JazzTechie is correct that the extra 24 GPIO Pins must be for the Orange Pi, but this is cool because we can use more IO Boards with the Orange Pi, but some things might be limited because there no access to those 24 Pins.
Waveshare CM Board
https://www.amazon.com/waveshare-Repr...
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