Well, there are vintage computer computer components and then there are components that were vintage when the vintage was new. This is a networking ISA card, the "AST-5251/11 Enhanced." I briefly websearched and found a source that said it made use of "Twinax" cable to network. I can't vouch for that though. This card looks okay and I figure it'd work if you have the cable and a driver (neither included) for it. But it is so old I am selling it "as is" and listing it inexpensively.
