You are either using a USB1.1 controller or a USB2.0 controller but don't have USB2.0 drivers installed. If your motherboard has USB2.0 you have to install USB2.0 drivers that comes with the motherboard to take advantage of high speed USB. If you only have USB1.1 you could buy a USB controller expansion card. You can also leave it the way it is, it will just be slower.