I recently purchased this card for a Pentium III, 500 mHz no-hard drive laptop (a Compaq Presario from 1998.) Puppy v.3 automatically detected the presence of the card and used preloaded drivers. I did have to reboot my computer before it would detect the card. It sees my network, now all I have to do is finish entering whatever security codes my network requires. If we had an open network, I'd be surfing on my "ancient" laptop right now.