An outdated but current optical cable company sales pitchWas researching active copper and cam across this site, the most interesting part being the table comparing attributes passive copper, active copper, and optical. 3 of the 5 attributes are dated in the context of sev tech, just one more optical company about to be disrupted.
https://www.finisar.com/markets/data-center/cabling-data-center https://www.finisar.com/markets/data-center/cabling-data-center