BusCard II IEEE-488 Interface, Mike Naberezny, The Buscard II from Batteries Included is an expansion port device for the Commodore 64 that provides an IEEE-488 interface allowing peripherals designed for the PET/CBM series to be used alongside serial IEC peripherals....In addition to the IEEE-488 port, the BusCard II features a parallel printer port. This is a Centronics-style port but uses an nonstandard card edge connector that requires a special adapter. A pass-thru port on the right-side of the unit allows another expansion port device to be connected.
nwpphotoforum.com
Morrissey, James (2005-03-14). "Artist Showcase: Michael Reichmann". The Nature, Wildlife and Pet Photography Forum. Archived from the original on 2016-07-07. Retrieved 2016-07-07.
Morrissey, James (2005-03-14). "Artist Showcase: Michael Reichmann". The Nature, Wildlife and Pet Photography Forum. Archived from the original on 2016-07-07. Retrieved 2016-07-07.