>We had an XT/286 and I don't recall any expansion card involved... And other people had an XT that they installed an expansion card into -- like the Pfaster-2

>We had an XT/286 and I don't recall any expansion card involved... And other people had an XT that they installed an expansion card into -- like the Pfaster-286[1] [1]https://books.google.com/books?id=xsMx9D2s6y0C&pg=PA43&lpg=PA43&dq=286+expansion+board&source=bl&ots=_lFrag8VIf&sig=_75OVAZvvnkxp6V8pilMbC3rA_k&hl=en&sa=X&ved=2ahUKEwivn7jxrMbcAhVMn-AKHUkTAn4Q6AEwDXoECAkQAQ#v=onepage&q=286%20expansion%20board&f=false https://books.google.com/books?id=xsMx9D2s6y0C&pg=PA43&lpg=P...