Startech com cb2ec expresscard to cardbus laptop adaptor pc card startech com cb2ec p the cb2ec cardbus to expresscard adaptor from startech com converts a laptop expresscard port into a cardbus port enabling you to use older cardbus cards with a newer expresscard capable laptop computer no drivers or extra software are required which means your 32 bit cardbus cards will install as if the adaptor is not even there p this adaptor eliminates the expense of replacing existing cardbus card