The Autobots and Decepticons are locked in the eternal struggle for the All Spark (spelled as two words in the movie). The former clan wants it to rebuild its home world Cybertron and end the war, while the latter wants it to transform Earth's technology for its own benefit and conquer the universe. When falling into the hands of a USB geek, the All Spark would transform into a 4-port USB hub; and given its size, it seems an overkill. Keep in mind though, the manufacturer won't be responsible your USB missile launcher is brought to life.
Did we mention it talks, spouting off classics like "We must protect the All Spark Cube," every time you plug in a device? This surely-authorized product will run you about $35 US, although the toll on your dignity may not be calculable.