> no PCMCIA cards are electronically compatible with the Airport slot

I think that has been established before in this thread:

https://morph.zone/modules/newbb_plus/viewtopic.php?topic_id=6042&forum=11&post_id=82520#82520

> no mini-pci cards are mechanically compatible with the
> Airport Extreme slot. Except Apple's own, of course.

Nobody here suggested using Mini-PCI cards other than Apple's in an AirPort Extreme slot.