USB 3.0/3.1/3.2 Gen 1 aka the kind that can do 5 gbps can only use cables up to 3m in length. Meanwhile Ethernet uses a similar twisted pair copper cable, but can do 10 gbps over 100m.
What gives, why is USB so limited in terms of cable length?
In: 413
The voltage of the signals is entirely different. See, data is just 1 and 0 transmitted in a certain format. On usb the range for the „1“ Signal is from 5 volt to 1 volt(or even less), everything below is interpreted as 0. if a cable is longer, it naturally has more resistance and a lesser voltage comes out on the other side. on Ethernet the range for the „1“ signal is from 45 volt to 1 volt. So much more voltage can be lost due to length of the cable before the signals can’t be read correctly.
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