A motherboard for the KIM-1, to insert the KIM-2, KIM-3, KIM-3b, KIM-5 and KIM-6 boards.
KIM-4 motherboard. Photos made in the TECMUMAS, dem Technikmuseum (Matthias Schmitt)

KIM-4 (photo by Joseph Avins)

KIM-4 (photo by Joseph Avins)
About small SBC systems
A motherboard for the KIM-1, to insert the KIM-2, KIM-3, KIM-3b, KIM-5 and KIM-6 boards.
KIM-4 motherboard. Photos made in the TECMUMAS, dem Technikmuseum (Matthias Schmitt)
KIM-4 (photo by Joseph Avins)
KIM-4 (photo by Joseph Avins)