They enable older machines with floppy drives to support latest USB Pendrives and SD cards to read / write designs and data.
Storage options are growing day by day and eventually the floppy drives, started to fade out. We now days have much more versatile options to replace floppy drive as source of data transfer.
This is useful for following machines-
a) CNC machines ( Electronica, Sodick , Seib and Meyer)
b) Plastic Moulding Machines
c) Robotics industry ( ABB / Kuka robots )
d) Textiles industry ( Bonas, Grosse , Staubli )
e) Embroidery machines ( Tajima, ZSK , SWF , Lasser , Saurer, Brother, Barudan )
f) Wire Cutting ( Electronic etc)
g) Diamond Cutting
h) Music Industry (Yamaha Musical Keyboards and synthesizers , Korg , Roland, Tritron, Kerton etc)