The new type of USB4 will continue the USB-IF’s questionable naming scheme that only its members and a thumbtack-and-string-covered corkboard can truly appreciate. When it’s all said and done, it seems you’ll be able to find USB-C ports that are USB4 Version 2.0, USB4 Version 1.0, USB 3.2 Gen 2x2, USB 3.2 Gen 2, USB 3.2 Gen 1, or USB 2.0, plus some will opt for Intel Thunderbolt certification. And in the case of USB4 Version 1.0, you’ll still need more information to know if the port supports the spec’s max potential speed of 40Gbps.
screaming intensifies
USB4 Version 2 FINAL.doc