USB 3.2 Specification Promises "Double Speed" Using The Same Type-C Connector

USB 3.2 Specification Promises “Double Speed” Using The Same Type-C Connector

While USB hosts and devices were originally designed as single-lane solutions, USB Type-C™ cables were created to support multi-lane operation to ensure a path for scalable performance.

Unlike micro and miniUSB, however, USB-C has been created to replace both ends of the cable.

The USB-IF and the USB 3.0 Promoter Group have announced USB 3.2, which will be fully unveiled at USB Developer Days 2017 in September. USB 3.2 enables the design of hosts and devices with multi-lane solutions, with up to two lanes of 5Gbps or 10Gbps operation, "effectively doubling the performance across existing cables", the group said.

Type-C is a reversible cable that is meant to charge all of your gadgets and even serve as a new audio jack, video output or charger.

Note, too, that this update applies only to USB-C, which is essentially a connector type.

For a reference, USB 3.1 specification, released in 2013, supports a maximum bandwidth of 10Gbps.

Existing Type-C SuperSpeed cables were designed with support for that second data lane so that they will work with USB 3.2 (look for the SuperSpeed logo below).

Just like every USB version, USB 3.2 interface will be backward compatible with previous generations.

The only small inconvenience is that to use these new speeds you'll need brand new devices at each end of the cable.

On the plus side, you won't need new cables, as the original USB-C cables were created to eventually be used with the higher speeds - that is, as long as they've been certified for SuperSpeed USB 10GBps. In many implementations, this connector, or port, is also used to deliver Thunderbolt 3 capabilities.

Put simply, then, USB 3.2 refers to how data is sent across cables, while USB-C technology is a physical specification that dictates the appearance of plugs and wires.

Changes have been made the hub specification to streamline the transitioning process between single-lane and multi-lane operation when different types of devices are connected to a hub.

The USB 3.0 Promoter Group today detailed in a press release that USB 3.2 will be able to double the performance by taking advantage of multi-lane operations.


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