SuperSpeed uses separate transmit and receive differential pairs, which additionally require shielding ( typically, shielded twisted pair but twinax is also mentioned by the specification ).
9.
Network wiring consists of a shielded twisted pair, with a characteristic impedance of 120 Ohms, with a termination resistor at the end of the cable furthest from the controller to absorb signal reflections.
10.
Whether the telecommunications system is based on "'Shielded Twisted Pair ( STP ) "'or "'Unshielded Twisted Pair ( UTP ) "'cable, TIA-607-B requires that each and every metallic component making contact with a telecom cabling infrastructure be bonded, even if it is merely touching another metal component that is directly attached.