CONTACT US  Chinese  English

Dynamic

The difference between the USB3.0 and the USB2.0 data lines

Data transmission bandwidth of USB 3 is USB2.0 ten times, just because of this advantage, USB3.0 is more popular. The maximum transmission bandwidth of USB2.0 in theory for 480Mbps (transfer rate up to 60MB/s), and the maximum transmission bandwidth of USB3.0 up to 5.0Gbps (transmission rate up to 640MB/s). In practical applications, limited by many hardware conditions, USB3.0 is not easy to achieve high effect.

In practical application, because USB2.0 has been issued for a long time, almost all the relevant data storage device with USB2.0 interface, so the use of the amount of USB2.0 data line class far exceeding USB3.0.

Although the USB3.0 compatible 2 interface transmission characteristics of high speed, but if you want to play USB3.0, requires the equipment manufacturers to increase the USB3.0 interface chip, and to enhance the peripheral transmission and storage device speed, will not become the bottleneck of USB3.0 speed. The discovery process in the actual test of USB3.0 transmission rate, transmission rate is influenced by the hard disk read and write speed, and ultimately for the hard disk read and write rate is about 140MB/S, if the switch to the new SSD, rate of up to 500MB/S.
 

The advantage of USB3.0 compared with USB2.0

Although in the actual use of the USB3.0 by the interface hardware limitations, but in the overall performance is still better than SB2.0. Compared to USB2.0, USB3.0 has the following advantages:

1, high bandwidth, transmission rate of USB3.0 is ten times more than the USB2.0;

2, large power, USB3.0 can provide higher relative to the USB2.0 power of equipment support. Upgrade from 2.5W to USB2.0 to provide 4.5W power provided by the USB3.0, thus can be compatible with more equipment.

3, low power consumption, energy saving in data transmission of USB3.0 more than USB2.0 (25% lower power consumption at 20MB/S), and the equipment has sleep function, make temporarily disable the device in a suspended state, more energy saving.