Hi There have been several requests recently as to what S-100 boards I still have on hand I have remaining: one S-100 Z80 CPU board PCB three S-100 6502 CPU board PCBs twelve S-100 Serial IO board PCBs They are $20 each plus $3 shipping in the US or $6 elsewhere. Please send a PayPal to LYNCHAJ at YAHOO.COM Thanks and have a nice day! Andrew Lynch PS the S-100 IDE V2 board PCBs are gone. The next PCB reorders will be the S-100 ZFDC (intelligent floppy controller) board PCBs, then the S-100 4MB SRAM board PCB, and the S-100 backplane PCBs in that order.