The USB Promoter Group published the final specifications for USB4 version 2.0 this week. The specification’s main improvement is that it doubles bandwidth from 40Gbps to 80Gbps.
Recap: When the USB Promoter Group revealed the latest USB specifications last month, they anticipated they would publish the final spec before November. Now the full sheets are here. As the new standard competes with the upcoming Thunderbolt update, the groups behind the interfaces are becoming more careful with potentially confusing naming and labeling (to no avail).
The USB Promoter Group published the final specifications for USB4 version 2.0 this week. The specification’s main improvement is that it doubles bandwidth from 40Gbps to 80Gbps.
Using PAM3 signal encoding, 80Gbps connections are possible over newly-defined 80Gbps USB-C active cables or existing 40Gbps passive cables.
