Article comparing fiber and copper cables in data centershttps://www.anixter.com/en_ca/resources/literature/techbriefs/the-data-center-question-copper-or-fiber.html
S7's active cables combine the best features of copper and fiber. No wonder data center providers want our cables!
Low cost of copper and high data rates, small diameter for ease of installatioin and long rach of fiber.
The article suggests there is an advfantage of using one type of cable throughout! Looks like S7 is ideal for most data centers. So the question of breakdown of cable types was raised earlier. Looks like that's not an issue for S7! They can do it all!