Do not download "GEV189 driver" from third-party driver update websites. These are often malware-infected or outdated. Stick to support.[manufacturer].com .
Because this cable uses a unique 5-pin Lemo-to-USB connection, it requires a specific to help your computer recognize the instrument as a communication port. The Story of the GEV189: "The Missing Link" gev189 driver
The result? Motion so smooth, veteran machinists would place a hand on the moving axis and swear it was off. Do not download "GEV189 driver" from third-party driver