The Usb Promoter Group has announced the arrival of usb4 version 2.0, which should allow speeds of up to 80 Gbps via a single type-c cable. In addition to the increased amount of data, an update in the field of power supply is also expected, although no details are shared. In the course of November, the Usb DevDays will take place, during which more information should come to light.
It is not entirely clear to what extent the new standard will be supported by existing cables. 40Gbps models, thanks to a new physical layer architecture speeds “up to 80 Gbps”, in addition, there will also be active cables that are specifically aimed at this higher speed.
The Usb Promoter Group is not exactly known for the clear naming of the standard.
There are also updates to the data and display protocols to make better use of the available bandwidth. For example, data tunneling via USB 3.2 should be able to exceed the limit of 20 Gbps from now on, and there are also updates to be compatible with the latest versions of Displayport and PCIe. In the field of backwards compatibility is called usb4 1.0, as well as usb 3.2, usb 2.0 and Thunderbolt 3. Thunderbolt 4 and the older usb 1.0 are therefore not part of the party.
Source: USB Promoter Group
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