IDEfile - A ProFile Emulator
This is a cool hardware emulation of the Apple ProFile drive for Apple III and Lisa computers. From the site:
"A Lisa Emulator Project can be found on the net, but up to now hardly any working ProFile emulators are known. Years ago, Sun Remarketing and Sigma Seven offered ProFile-compatible hard drives. Tom Stepleton and Al Bui tried to design a bridge from the ProFile parallel interface to an EPP printer port, letting a PC emulate the drive. Project documentation can be found here, but after their prototype refused to work, they abandoned the project. Therefore I decided to design and build my own drive.
IDEfile is a ProFile compatible hard drive for Apple /// and Lisa systems. Emulation of the classic 5MB ProFile and the rare ProFile 10M is provided. I intend to support Widget-10 and a big 20MB Widget-20 too, but before that I have to figure out the syntax of its additional commands. Any help on this is appreciated, also any technical information on calibrating and formatting these beasts!:

IDEfile - A ProFile Emulator