As part of Armbian? Are you kidding?   The Banana folks still do not provide 'documentation' or 'information', they still allow their copy&paste monkey to assemble random words and numbers to silly nonsense. Look at http://wiki.banana-pi.org/Banana_Pi_BPI-R64 (archived version). What's available on the mPCIe socket? USB? PCIe? How large is the board here? '148 mm × 100.5mm' which is somewhat different than the '120mm ×100mm' they list there (archived version). They're not even able