This is the Pinky/Mandy System for the Atari Lynx. A cheaper alternative
to the 'Howard' system, the Pinky appears to be just a RAM cartridge
of sorts with a parallel interface to a computer.
Here's the inside of the box. The Sony chips are RAM chips, and there's
an EPROM with what I'm assuming is control code to make the device
work properly. It appears that it basically just loads the game code
into the RAM chips, and then it emulates a cartridge into the attached
It connects directly to the cartridge port, with two other wires that
are soldered to the main board of the Lynx.