New specification is backward compatible with existing hubs, cables, and software

The USB 3.0 Promoter Group announced this week that it had completed the specifications for USB 3.1. This new USB 3.1 specification adds enhancements that allow SuperSpeed USB to operate at speeds of up to 10 Gbps. The latest release of the specification is available for download right now from the USB Implementers Forum.

“The USB 3.1 specification primarily extends existing USB 3.0 protocol and hub operation for speed scaling along with defining the next higher physical layer speed as 10 Gbps,” said Brad Saunders, USB 3.0 Promoter Group Chairman.
“The specification team worked hard to make sure that the changes made to support higher speeds were limited and remained consistent with existing USB 3.0 architecture to ease product development.”

The faster USB specification allows for more efficient data encoding and more than twice the effective data throughput compared to existing SuperSpeed USB. The specifications still supports current USB connectors and cables with full backwards compatibility. The specification will be compatible with existing USB 3.0 software stacks, device class protocols, and existing 5 Gbps hubs and devices.

Developers that want to implement new USB 3.1 specification will be able to learn technical details for the new specification at three upcoming developer conferences

Source: (PDF)

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