@Danal said in CAN-FD cable:
Preferred cables will be marketed with terms like "High Speed" or "ADSL" or both. This indicates a shielded cable. I used these: https://www.amazon.com/gp/product/B011SS7LYU/
Which is very visibly not at all a shielded cable. There is no point in it being - the connector has no shield, the system it is intended for use in has no shield... If a foil is presented inside there unterminated, it's at best useless, probably harmful..
Cabling required should be nothing more than a common two pair cable and 6P4C connectors.