Where can I find the relevant USB driver version? Nortek Support June 22, 2019 15:25 Updated Follow The latest serial to USB driver can be downloaded from the software page. Related articles What does Checksum error from your Nortek instrument mean? How can we get the Nortek standard control software to start-up automatically? My instrument is not communicating. What should I do next? Integrators Guide – Signature Performance Model for Nortek Signature Series Comments 0 comments Please sign in to leave a comment.