On September 18, 2007, at the Intel Developer Forum a demonstration of USB 3.0 was presented. Two months later the USB 3.0 Promoter Group announced that the specifications for version 3.0 were complete and was ready for the USB Implementers Forum, the managing body of USB specifications to decimate the specifications and monitor implementation.
A new feature USB 3.0 is the bus, which provides a fourth transfer mode at 4.8 Gbit/s. This gives is a “Superspeed.” With the raw throughput at 4 Gbit/s, and the new specifications, it is possible to achieve a speed of 3.2 Gbit/s, which translates to 0.4 GByte/s or 400 MByte/s or more after protocol overhead.
Max out usb 2.0 and 3.0 can you read this link
A new feature USB 3.0 is the bus, which provides a fourth transfer mode at 4.8 Gbit/s. This gives is a “Superspeed.” With the raw throughput at 4 Gbit/s, and the new specifications, it is possible to achieve a speed of 3.2 Gbit/s, which translates to 0.4 GByte/s or 400 MByte/s or more after protocol overhead.
Max out usb 2.0 and 3.0 can you read this link
