Usb 3.1 Transfer Speed. Correct option is d. Usb 30 is also known as usb 31 gen 1 5gbps.
Right click on a usb driver and choose update drive. Reboot computer if it doesnt and check if usb transfer speed is increased. Read rate from 60mbs to 140mbs and write rate from 50mbs to 110mbs.
Usb 31 gen 1 supports speeds of up to 5gbits while usb 31 gen 2 supports speeds of up to 10gbits.
It provides raw data transfer of 10 gbits and it also reducing line encoding overhead to just 3. Usb 30 is capable of data transfer speeds up to 5gbps. Usb 31 also named usb 31 gen2usb 32 gen2x1 was released in 2013. The usb 31 gen 1 technology usb 30 enables multiple streams of data transfer and simulates its fastest signaling bandwidth to 5gbps that is faster than that of usb 20 480mbps.