Measurements are of main circuit board only. This is parallel port dual disk interface to Corvus and Pippin hard disk drives. It is likely that Pippin was a code name for the Profile disk drives, It uses a 6522 VIA (versatile interface adapter with dual 8bit bidirectional parallel ports to talk to th e disk drives. There are 2 34 wire flat cables with female connectors included that plug into a pair of male 34pin connectors on the board. There is a 50 pin edge connector that plugged into the LISA. The board has 10 unconnected DIP footprints on the board for breadboarding, 5 of which are 16 pin, and 5 of which are 20 pin.
