USB 3.1 Specs finalized with 10Gbps Speed
"SuperSpeed USB 10 Gbps uses a more efficient data encoding and will deliver more than
twice the effective data through-put performance of existing SuperSpeed USB over
enhanced, fully backward compatible USB connectors and cables. Compatibility is assured
with existing USB 3.0 software stacks and device class protocols as well as with existing 5
Gbps hubs and devices and USB 2.0 products" Announcement
There is still no word on when the cables and devices using the new version will be available for purchase by everyone.