This is an IO adapter board for the Raspberry Pi 3, based on the awesome Pi1541 project by Steve White.
It plugs into a Raspberry Pi (3B, 3B+ or 3A+) and with the correct software and configuration, exactly emulates a Commodore 1541 disk drive.
You will need to supply your own Raspberry Pi and MicroSD card with the Pi1541 software installed on it, instructions of which can be found at https://cbm-pi1541.firebaseapp.com/
This board implements “option B” of the cable setup documented on the Pi1541 homepage, and as such needs the “splitIECLines = 1” line to be available in options.txt
The Pi1541 IO Adapter is built and provided by silvestron under license from hackup – https://github.com/hackup/Pi1541io