The Advantages Of USB3.0 Compared To USB2.0 Connectors

19 Apr.,2023

 

1. Advantages of transmission rate

The USB2.0 connector provides a transfer rate of 480 Mbps, while the USB3.0 connector provides a transfer rate of 4.8 Gbps. The transfer speed of the USB3.0 connector is 10 times higher than that of the USB2.0 connector.


2. The advantages of physical bus

The USB 3.0 connector doubles the number of wires compared to the USB 2.0 connector, from 4 to 8 times.


3. Advantages of power consumption

The USB2.0 connector provides 500mA, while the USB3.0 connector provides up to 900mA.


4. The advantages of bandwidth

A USB 3.0 connector can use two unidirectional data paths, one for receiving data and the other for transmitting, whereas a USB 2.0 connector has only one data transfer direction.


5. Advantages of bus utilization

The USB3.0 connector has one more new function than the USB 2.0 connector, which is to use the data packets NRDY and ERDY. Its main function is to let the device synchronously notify the host that it is ready.


In addition, the USB3.0 connector also provides better speed and more efficient power management than the USB2.0 connector, although the USB3.0 connector is backward compatible with USB2.0 standard devices, but the data transfer speed is limited to USB2.0.


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