About CortexM55 for NN supporting

Hi,

It seems like CortexM55 would be first NN supporting via HW MCU and the MPS3 AN547 is the EVK with Zephyr supported.

But I cannot find the contact on getting the board for investigation or development, is there any way to purchase the HW? Or is there any misunderstanding I need to know about the platform of supporting NN with HW capability?

Thanks.