Edit: still raises the question, why would companies go through all the hassle creating such hardware. While an ME7 ECU in stock form can do all of this. And someone with the right tools could easily desolder this garbage.
You are asking from a modern point of view. But 20 years ago, little was known to the general public about these ECU capabilities.
Tuning companies were just trying to protect themselves from stupid copying of firmware dumps
This board has a second purpose. Tuning dealers have a number of "clean" modules that, after being soldered to the client's ECU, can program the encrypted file received from the tuner and cannot duplicate it in other cars.
