30M HDMI 2.1 Active Optical CablesHDMI 2. 1 Active Optical Cable. Fiber optic technology allows Active Optical Cables (AOC) to transmit ultra high bandwidth data signals over distances that copper cannot. So what are the advantages of running a fiber optical cable over a copper cable? Fiber cables are much stronger than copper cables and also a lot more flexible. Fiber cables handle weather conditions better than a copper cable ensuring you dont have data stall issues which can cause