What's USB2.0?

USB2.0 technical specifications are by Compaq, Hewlett Packard, Intel, Lucent, Microsoft, NEC, Philips jointly developed and released, the specification of peripheral data transmission speed to 480Mbps, is a USB 1.1 Device 40 times times! But as planned, the new USB 2.0 standard is just about to set the standard at 240Mbps, and then, after a while, to improve it to 480Mbps.

As a result of the changes made at that time, the USB specification produced three kinds of speed choices: 480Mbps, 12Mbps, 1.5Mbps. and June 2003, When the USB2.0 standard began to become popular, the USB association renamed the USB specifications and standards, perhaps at that time the USB association's move is only to better unify the standard without confusion, but perhaps the USB association did not think this standard to the flash disk and the MP3 market caused a chaotic situation.

The USB standard was renamed to convert the original USB 1.1 to USB 2.0 full Speed, while the original USB 2.0 was converted to USB 2.0 high-speed (high speed) and a new logo was announced. It goes without saying that the high-speed version of the USB 2.0 speed of course exceeds the full version of USB 2.0.