Difference between usb3.0 data cable and usb data cable

1.data transfer rate, 3.0 is SuperSpeed 5.0Gbps, 2.0 is 1.5Mbps, 12Mbps or 480Mbps

2. Data interface. 3.0 is full-duplex independent of the USB 2.0 signal four-way differential signaling, support for simultaneous bidirectional data transmission 2.0 is half-duplex, two-way differential signaling, unidirectional data transmission, the need for prior consultation on the direction of transmission of the total line

3. Number of signal lines, 3.0 is a 4-way SuperSpeed data lines, 2-way HighSpeed data lines and 2-way power and ground 2.0 is a 2-way LS/FS/HS data lines, 2-way power and ground

4. Bus transaction protocol, 3.0 is the host-led asynchronous mode of transmission traffic control, packet transfer is able to explicitly route 2.0 is the host-led polling mode of transmission traffic control, packet transfer is through the broadcast mode to all devices.

5. Power management, 3.0 is a multi-level link power management, supporting Idle, sleep and suspend states.

2.0 is managed at the port level, can have two levels of entry/exit on the hang state

6. bus power, 3.0 and USB 2.0 is almost the same, but the power is not configured to have a 50% increase in the power has been configured to have an 80% increase in power 7. host controller. 3.0 with xHCI. 2.0 is EHCI. XHCI provides technical support in the virtualization technology