CompuPro - SPIO
This was some kind of Multiuser serial support board- Single board computer. It has 64K Dynamic RAM onboard and what looks like a 80186 or 80286 socket. If you have a manual I will place it her for others to review.

 

Other CompuPro S-100 Boards
CPU8085-88  CPU86-87  CPU-Z  Disk1  Disk1A  Disk1B  Disk2  Disk3   EconoROM2708  Interfacer 1  
RAM Boards   Interfacer 3  Interfacer 4  Interfacer II   M-Drive  MPX-Board  PC-Video  
System-Support1  System-Support2   SPIO  Spectrum  SP186   CPU-286   68000  32016  SPUZ