The Enhanced SuperSpeed host passes the USB 3.2 data to the USB 3.2 downstream port adapter, and then transfers the data through the USB4 port to the USB4 port of the USB4 hub
In USB 3.2, DisplayPort video and USB 3.2 data are transmitted on different channel adapters, while in USB4, DisplayPort video, USB 3.2 data and PCIe data can be transmitted on the same channel.
USB4 supports speeds of up to 40Gbps, which is double the current USB 3.2 standard (20Gbps), but whether this speed can be reached depends on the type of device used.
