Question: what is the difference between usb and usb2?
Answer: USB 1.0 vs USB 2.0 Speed USB 2.0 and USB 1.0 differ in the data transfer rate they are capable of. The maximum speed that USB 1.0 devices can achieve is 12Mbps while 2.0 devices can theoretically achieve up to 40 times of that at 480Mbps. ... These devices transmitted only a small amount of data to function.