Backup device for Sega Genesis and Super Nintendo games. For those of you who are too young to remember, back in the day we didn't have no intertubes where we could download any game we felt like playing. Back in the day if one wanted to engage in the act of video game piracy, one needed a specialized machine such as this.
These copier machines are essentially add ons that rip the rom from an inserted game and transfer it to a 3.5 floppy disc (where do you think all those roms came from in the first place?) The added benefit here is one could copy a rented or borrowed cartridge and then play it on the original hardware.
This particular copier seems to have a notorious failure rate, as high as 70% (and you thought it was only modern day consoles that broke down..) Apparently half the time the ram chips would fail, also random pieces would come loose and rattle around the inside during shipping. Cheap laptop disk drives were used, the doors of which would snap off easily. The irony here of course is finding an original unit in working condition today is well nigh impossible.