Are all GPIO pins on HiFiBerry Amp2 useable?

  • Does HiFiBerry Amp2 have the same GPIO layout as Raspberry Pi 3 B+?
  • Are all its GPIO pins useable? Does Amp2 have any unuseable GPIO pin on itself?

I want to use female-to-male jumper cables to connect Amp2 GPIO pins to an IR transceiver HAT.

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