Originally posted by: Rottie
I might be wrong I think both are different cardbus is a 32bit and PCMCIA is a 16bit if your old laptop can support both cardbus and PCMCIA that is good.
Originally posted by: PepperBreath
PC Card = 16-bit PCMCIA
Cardbus = 32-bit PCMCIA
ExpressCard = PCI-E based Cards
Type I is 16-bit only. Type II can be either 16-bit or 32-bit.
Think of it this way. PC Card is ISA and Cardbus is PCI. Your laptop would have to be pretty old to only support 16-bit Type II PCMCIA cards, like a decade or more old. Chances are pretty good that your laptop is Cardbus ready.