You must be familiar with USB memory but did you know there is actually USB File Transfer Cable available? When you try to transfer a big files or multiple folders/files from one computer to the other one, or you when move data from your old computer to a new one, most likely USB memory can not hold the entire files at a time. Even if you had a large capacity USB memory or external HDD/SSD, you had to copy it to USB memory and copy it again to the other computer.