PCB Design Guide (USB)

The layout requirement for USB interfaces depends on the version that needs to be supported. Up to USB 2.0, the interface was consisting of a single bidirectional data signal pair. The USB 3.0 standard introduces two additional data signal pairs for the Super Speed link. These two pairs are running at 5 Gbit/s and are fully compliant to the PCI Express Base Specification, Revision 2.0. Super Spe..