USB3.0 then would have 1 ghz carrier frequency and many subcarriers of 6/8 mhz division(64-256 channels; USB has 127 ports). Then USB 4.0 will use over 2.4 ghz to have more than 1024 channels of data transfer simultaneously
USB 2.0 , USB 3.0 AND USB 4.0
June 26, 2010
