This is the Micro-Professor MPF-I, including the manuals, power supply, and BASIC keyboard overlay as shown. It also has the MPF-IB 4 kilobyte BASIC interpreter installed. I've tested it as best I can, and it appears to be in good working order. At least one of the manuals has some notes left by a previous owner.
The MPF-I was released in 1981 as a system for teaching machine code and assembly language programming for the Z80 microprocessor. This is a rare piece of equipemt, an interesting find for anyone passionate about vintage computers.
CPU: Zilog Z80 @ 1.79 MHz
Memory: 2 KB RAM
Operating system: 2 KB monitor ROM
Display: Six digit 7-segment display.
Sound: Beeper
Power: 5V via 7805 from 9V at 500 mA mains adapter