V5 Beta Smart Cable use

I’m searching the Forums but not finding an answer.

Is the Smart Cable pack that came with the Beta kits LEGAL for use in competition?

No. None of the beta equipment is legal.

See rule <R5>e in the game manual.

Here’s a link to the Q&A adressing this. It appears to say that the motor cartridges and wires from the beta test kit can be used on robots: https://www.robotevents.com/VRC/2018-2019/QA/72

correct.