Hardware News Technology

USB 3.2 doubles data rates using same cables

When USB Type-C was introduced it was welcomed with open arms by everyone thanks its reversible connector, the support of up to 100 watts of power, and up to 10Gbps data transfer speeds.

And we have another good news for you, that is the data rate is set to double using the same cable. The USB 3.0 Promoter Group announced this week that it is preparing to release the USB 3.2 specification.

USB-C cables were designed to support multi-lane operation, with USB 3.1 Gen 2 supporting up to 10Gbps using two lanes (5Gbps per lane). With USB 3.2, that rate doubles, allowing up to 10Gbps data rates per lane, giving a total of 20Gbps or 2GB/sec transfer speeds.

Of course, in order to enjoy that increased speed, you will need USB 3.2-compatible devices. However, what you won’t require is a new cable.

Brad Saunders, USB 3.0 Promoter Group chairman, explains in the following statement:

“When we introduced USB Type-C to the market, we intended to assure that USB Type-C cables and connectors certified for SuperSpeed USB or SuperSpeed USB 10Gbps would, as produced, support higher performance USB as newer generations of USB 3.0 were developed.”

In short your existing USB-C cable should be capable of allowing USB 3.2 data transfer speeds once new supporting hardware starts appearing.

USB 3.2 will also continue to use the existing SuperSpeed USB physical layer data rates and encoding techniques, and only requires a minor hub spec update to “assure seamless transitions between single and two-lane operation.”

We are expecting the formal release of the USB 3.2 specification in time for the USB Developer Days North America event in September.

After that event, it’s up to hardware manufacturers as to how quickly the new tech is adopted and built into devices.


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