32 bit type II. Pc Card bus. Most laptops that have it will say Type I, Type II PC Card bus slot. It's getting a bit harder to find them, now. Expresscard slots are taking their place. But, there are still a lot of them out there. Mine has pcmcia and expresscard. So, I use the pcmcia for p2 card offloading and editing. And I use the expresscard slot for an eSATA setup for editing.