The newly announced USB4 architecture is based on the Thunderboltâ„¢ protocol specification.
the USB Implementation Forum (USB-IF) finally revealed the specifications for USB4 on Sep 3, and it looks like USB 4 will match Thunderbolt 3 in every respect. With dual-lane 40Gbps transfer rates, power delivery, and continued support for display protocols, single-cable connectivity to computers will no doubt become the standard.