Reproduction Ohio Scientific OSI 400 "Superboard" 6502 CPU Board SBC

Original Ohio Scientific OSI 450 Circuit board

Reproduction Ohio Scientific 582 4-Slot Backplane Board for Challenger C4P

Reproduction Ohio Scientific OSI 495 Prototyping Board

Reproduction Ohio Scientific OSI 510C Triple CPU Board

Commodore 1902 Monitor Replacement Door

Reproduction Solid State Music IO-2 S-100 Board S100 I/O Interface Protoboard

Reproduction Ohio Scientific OSI 580 8-Slot Backplane