Polymer cables vs USB and Thunderbolt
Polymer cables could replace Thunderbolt & USB, deliver more than twice the speed from r/gadgets
Researchers are working on a cabling system that could provide data transfer speeds multiple times faster than existing USB connections using an extremely thin polymer cable, in a system that echoes the design path of Thunderbolt.
While the “increasingly bulky and costly” copper could be replaced by fiber optic cables, that introduces its own issues. As silicon chips have difficulty dealing with photons, this makes the interconnection between the cable and the computers more challenging to optimize.
The polymer can also use sub-terahertz electromagnetic signals, which is more energy-efficient than copper at high data loads. It is believed this efficiency brings it close to that of fiber optic systems, but crucially with better compatibility with silicon chips.
It seems plausible that such a system could be employed for a future Thunderbolt-style connection, allowing it to go far beyond the current 40Gbps upper limit.
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more on USB in this IMS blog
https://blog.stcloudstate.edu/ims?s=usb