USB 3 added two extra pairs of wires for superspeed 5/10gbps data transfer, requiring thicker cables than usb2.
USB 3.2 supports the optional dual lane mode which uses two more superspeed wire pairs when using a type c connector on each end, although not every c-to-c cable includes these (but also were often used for earlier USB cables so that protocols such as Displayport could work.
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