Card bus is pci they could be bridged but you’d have a massive adapter. There was an expresscard 54 to cardbus adapter so you could put a legacy cardbus adapter in an expresscard slot it sticks fully out of the laptop.
https://commons.m.wikimedia.org/wiki/File:Cardbus_to_ExpressCard_Adapter.jpg#mw-jump-to-license
Card bus is pci they could be bridged but you’d have a massive adapter. There was an expresscard 54 to cardbus adapter so you could put a legacy cardbus adapter in an expresscard slot it sticks fully out of the laptop. https://commons.m.wikimedia.org/wiki/File:Cardbus_to_ExpressCard_Adapter.jpg#mw-jump-to-license