With storage capacity on the rise data transfer was still generally slow, until now. USB 3.0 solves the major flaw of it’s predecessor USB 2.0, by greatly increasing in transfer speeds. USB 3.0 is generally 3x the speed of USB 2.0 in practice and transfer speeds of 50-70MB per second are not uncommon. This is more suitable given larger disk sizes and the improvements in network speeds. It is now easier to saturate a 1 gigabit network connection. Not to mention one has the flexibility of using USB rather than some other harder to support technology such as esata, or firewire. With more software vendors supporting USB 3.0, it is the way to go if you want to have speedy transfers with less headache.