Well, they may be, but not quite yet. As John Covici pointed out, you can get cables and brackets to extend the serial headers on your mother board, if it has them. On the other hand, if you have an old isa card, and are in the market to buy a new computer, there are still companiesout there that make computers with both isa and pci slots, you just have to look for them. One that I found while doing a search is Nixsys Open Systems. Their web site is nixsys.com, where you will find a link for isa slot computers. They come in both short tower and rack mount configurations. Hope this helps. Gene