The difference between usb3.0 and 2.0

The difference between usb3.0 and 2.0: 1. Difference inside the interface; 2. Difference in interface rate; 3. Difference in output power; 4. Different transmission rate; 5. Different appearance; 6. Socket pins Different; 7. Backward compatibility; 8. Different energy consumption; 9. Different data transmission modes; 10. Transmission method; 11. Data line color; 12. Transmission efficiency; 13. Power management; 14. Connection method. Detailed introduction: 1. The difference inside the interface, USB 2.0 adopts a 4-pin design, while USB 3.0 adopts a 9-pin design, etc.

There are significant differences between USB 3.0 and USB 2.0 in many aspects, as follows:

1. Differences within the interface : USB 2.0 adopts a 4-pin design, while USB 3.0 adopts a 9-pin design. In comparison, USB 3.0 is more powerful. The USB 3.0 interface is marked with the "SS" style; USB 2.0 is only marked with the ordinary USB universal logo. In order to distinguish it from USB 2.0, the USB 3.0 Primoter Group recommends that manufacturers use a blue base in the USB 3.0 interface.

2. The difference in interface speed: USB 3.0 is 10 times faster than USB 2.0. USB 2.0 is 480mbps, while USB 3.0 is 4.8gbps. Many devices don't require such high speeds, but devices such as hard drives and card readers still have high-speed requirements, and USB 3.0 will save more energy than USB 2.0.

3. Output power difference: USB 3.0 also provides more efficient power management functions and achieves more powerful power output than USB 2.0.

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4. Different transmission rates: Theoretically speaking, the transmission speed of USB 3.0 is 4.8Gbps, which is 10 times that of USB 2.0.

5. Different appearance: Compare from the appearance of USB: USB2.0 is usually white or black, USB3.0 has a blue interface.

6. The socket pins are different: Compare from the USB socket pins: USB2.0 adopts a 4-pin design, while USB3.0 adopts a 9-pin design, which is more powerful.

7. Backward compatibility: USB 3.0 is backward compatible, that is to say, USB 3.0 devices can be used on the USB 2.0 interface, but the transmission speed will be reduced to USB 2.0 level.

8. Different energy consumption: USB3.0 consumes less power than USB2.0 when transmitting data.

9. Different data transmission modes: USB3.0 is implemented by transmitting two signals on a single data line, while USB2.0 is achieved by transmitting one signal on two data lines. signals are implemented.

10. Transmission method: USB 3.0 uses a single channel to transmit data, while USB 2.0 uses a dual channel to transmit data.

11. Data cable color: The USB 3.0 data cable color is usually blue, while the USB 2.0 data cable color is usually black or white.

12. Transmission efficiency: USB 3.0 has higher transmission efficiency and can transmit large amounts of data faster, and is suitable for high-speed data transmission and real-time applications.

13. Power management: USB 3.0 has more advanced power management functions, which can better control the power supply of the device, thereby improving the energy efficiency of the device.

14. Connection method: There are also some differences in connection methods between USB 3.0 and USB 2.0. For example, USB 3.0 uses a push-in connection, while USB 2.0 uses a traditional socket connection.

In short, USB 3.0 and USB 2.0 have significant differences in many aspects, mainly in interface design, transmission speed, transmission method, power management, etc. Choosing the appropriate interface standard can achieve better performance and experience based on actual needs.

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