"USB4 (official style), sometimes referred to as USB 4.0, is a technical specification that the USB Implementers Forum (USB-IF) released on 29 August 2019.[1] USB4 is based on the Thunderbolt 3 protocol specification, which Intel has donated to the USB-IF,[2] but is aligned with the Thunderbolt 4 specification.[3] The USB4 architecture can share a single, high-speed link with multiple hardware endpoints dynamically, best serving each transfer by data type and application.
In contrast to prior USB protocol standards, USB4 mandates the exclusive use of the Type-C connector and USB Power Delivery (USB-PD) specification. USB4 products must support 20 Gbit/s throughput and can support 40 Gbit/s throughput, but because of tunneling, even nominal 20 Gbit/s can result in higher effective data rates in USB4, compared to USB 3.2, when sending mixed data. In contrast to USB 3.2, it allows tunneling of DisplayPort and PCI Express."
https://en.wikipedia.org/wiki/USB4
#usb4
#USB4
#40gbps
#20gbps
#10gbps