Cardbus = 32 bit karta
neviem ci to je presne takto definovane aj v specifikacii ale mozes to brat ako fakt ze to tak je 100% zauzivane uz velmi vela rokov. Aj napr. na http://en.wikipedia.org/wiki/PC_Card

CardBus are PCMCIA 5.0 or later (JEIDA 4.2 or later) 32-bit PCMCIA devices, introduced in 1995 and present in laptops from late 1997 onward. CardBus is effectively a 32-bit, 33 MHz PCI bus in the PC Card form factor.