The USB 3.0 standard provides ten times the transfer speed of USB 2.0 and higher energy efficiency, and is widely used in PC peripherals and consumer electronics. The theoretical bandwidth of the USB 3.0 interface is increased to 5 Gbps, while the theoretical bandwidth of USB 2.0 is 480 Mbps. All high-speed USB 2.0 devices will get better performance when they get USB3.0.

The main difference:

1. USB3.0 data bandwidth is ten times that of USB2.0, can reach 5Gb/s (480MB/s), and synchronous transmission bandwidth can reach 384MB/s, which is one of the main differences between USB3.0 and 2.0;

2. Low power consumption (about 25% lower power consumption than USB2.0 at 20MB/s data transfer);

3. USB3.0 is more energy efficient than 2.0. For devices that are temporarily waiting, you can use the power saving mode.

4. USB3.0 can provide more power through cable (2.5W to 4.5W);

5. USB3.0 is backward compatible and supports USB 2.0 devices, but USB 2.0 cannot support USB3.0.