I found this in my loft still in original box unused.The box is a bit battered but intact

It is a cable to attach a Casio FX Graphic caculator to a windows pc

sotware on floppy disk and manual come with it in the box

requirements (min) are cpu 386/2MB RAM  VGA  win 3.1 or higher

Some retro loving person must want this item

list of COMPATIBLE  calculators is in the photos on the front of the box

box contains everything you need to exchange data on these old machines