I'm looking for any 3dfx cards. if you have any let me know.

Were you able to look for a 3dfx cards? I just don't know if this can still help. I was able to find out that IMHO which is known as the best manufacturer of 3dfx cards in the '90s. There are the following cards currently on sale. You may as well check the details about it in the internet. Otherwise, you also check with Best Buy who has a listing several 3Dfx graphics boards for sale.