There are also two main types of DACs, active and passive. Passive use less power. Active use more power but gain a bit more distance. Still, even active DAC cables do not reach the same distances as optical connections. We will quickly note here that there are Active Optical Cables that...
Aluminum substitutes for copper in power cables, electrical equipment, automobile radiators, and cooling and refrigeration tube; titanium and steel are used in heat exchangers; optical fiber substitutes for copper in telecommunications applications; and plastics substitute for copper in water pipe, drain ...