Usb Transfer Speed. In fact usb 31 gen 1 is equivalent to usb 30 the transfer rate of usb 30 and usb 31 gen1 is the same but only the difference in name the actual transfer rate of usb30 and usb 31 gen 1 is about 32gbps 410mbs. 5 gigabits per second gbps usb 31.
Usb 30 up to 5gbps 625mbs usb 20 up to 480mbps 60mbs the values seen above and any marketing messages. The original usb 30 speed reaches 50gbps 640mbs and its maximum output current is 5v900ma. The now aging usb 20 standard can theoretically transfer data at a very high 480 megabits per second mbps or 60 megabytes per second mbps.
Usbdeview make this test by writing a large file into the usb flash drive and then reading back the same file to getting the read speed.
When connecting devices with different usb versions the data transfer rate will be limited by the slowest of the connected devices. For this speed mode it requires the use of certified usb c cables. As an example it may read like this. The limitation is that the dual channel mode needs to use usb type c interface.