This is a very uncommon device. The Double-Density format it uses cannot be read by the CorComp, Atronic, or BwG disk controllers unless they are being used in a Geneve9640. There are other controllers that will read the format without problems: the original TI Double-Sided Double Density Disk Controller (rare), the TI Hex-Bus Floppy (rare), and the Myarc Hard and Floppy Disk Controller (common).