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New specification promises 10 Gbps

We don’t think that many people were complaining about the existing speeds delivered by USB 3.0, but performance about to get even better. The USB 3.0 Promoter Group announced this week at CES that some tweaks have been made to the USB 3.0 protocol that will allow it to be even faster. Currently, USB 3.0 ports are capable of transfer speeds up to a theoretical 5 Gbps.

The new specification will allow the ports to transfer data at twice that speed promising up to 10 Gbps of data throughput. The promoter group expects the supplement to the USB 3.0 specification to be completed by the middle of the year, which should mean devices supporting the higher-speed will be available then as well.

The higher rate USB 3.0 ports will be compatible with existing cables and connectors. The new specification will provide improved data encoding for more efficient data transfer and will offer improved I/O power efficiency. The faster specification will be compatible with existing USB 3.0 software stacks and device class protocols. The new protocol will also be backwards compatible with USB 2.0 ports and products.

The USB 3.0 Promoter Group says that the faster USB 3.0 port is targeted for industry review during Q1 of this year. More information regarding the specifications in planned for release will be available later.
 

Source: USB.org



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Not Quite
By Shadowself on 1/7/2013 2:10:34 PM , Rating: 3
quote:
The promoter group expects the supplement to the USB 3.0 specification to be completed by the middle of the year, which should mean devices supporting the higher-speed will be available then as well.
Absolutely not. Once the specification is complete, fabs have to build test chips, then pre-production chips, then vendors design and build hardware in parallel with full production chips. Don't expect hardware/systems supporting 10 Gbps USB before 2014, and maybe not until late 2014.

quote:
The higher rate USB 3.0 ports will be compatible with existing cables and connectors.
quote:
The faster specification will be compatible with existing USB 3.0 software stacks and device class protocols. The new protocol will also be backwards compatible with USB 2.0 ports and products.
Compatible with does not mean the same as people will be able to run 10 Gbps over the old USB 3.0 cables designed to support 5.0 Gbps. The USB committee is telling people that you *MAY* be able to get 10 Gbps over those old cables, but don't count on it.

You can certainly count on the new 10 Gbps USB implementation to be backward compatible with the 5 Gbps and 480 Mbps implementations. But don't count on any of your current hardware being "forward" compatible. It might, but don't count on it.




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