Hi! There are still five (5) S-100 SMB, twelve (12) S-100 bus extenders, and three (3) S-100 8088 CPU board PCBs left in case anyone is looking for them. Here are the latest descriptions of these boards: http://s100computers.com/My%20System%20Pages/SMB%20Board/S100%20Bus%20SMB.ht m http://s100computers.com/My%20System%20Pages/Extender%20Board/Extender%20Boa rd.htm http://s100computers.com/My%20System%20Pages/8088%20Board/8088%20CPU%20Board .htm The PCBs are $20 each plus $3 shipping in the US and $6 elsewhere. The S-100 SMB is a dual PCB so it is $40. Please send a PayPal to LYNCHAJ at YAHOO.COM and I will send your boards right away! Thanks and have a nice day! Andrew Lynch