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This article is to share with you about the differences between usb2.0 and 3. 0 on USB disk. The editor thought it was very practical, so I shared it with you as a reference. Let's follow the editor and have a look.

The difference between USD2.0 and USD3.0: 1. The speed of [USB3.0] is 5Gbps, while the speed of [USB2.0] is 480Mbps, [USB2.0] adopts 4-pin design, and [USB3.0] adopts 9-pin design, which is more powerful than [USB3.0].

The difference between USB 2.0 and 3.0:

1. The rate of USB3.0 is 5Gbps, while the rate of USB2.0 is 480Mbps.

2, from the appearance of USB, USB2.0 is usually white or black, while USB3.0 is changed to a "high-end" blue interface.

3. From the point of view of USB socket pins, USB2.0 adopts 4-pin design, while USB3.0 adopts 9-pin design, so USB3.0 is more powerful.

There are three USB interfaces: USB1.1,USB2.0 and USB3.0. Theoretically, the transmission speed of USB1.1 can reach 12Mbps, while that of USB2.0 can reach the speed of 480Mbps, and it can be backward compatible with USB1.1.

As early as 1995, personal computers already have USB interfaces, but due to the lack of software and hardware support, the USB interfaces of these personal computers are idle. After 1998, with Microsoft's built-in support module for USB interface in Windows 98 and the increasing number of USB devices, USB interface gradually entered the practical stage.

Extended data:

USB technology has been developed for more than 20 years since 1993. The first generation of official definition USB 1.0 was officially launched in 1996. It can provide the low-speed transmission rate of 1.5MB/s for subchannel keyboard and mouse, and achieve a transmission rate of 12 MB/s in full-speed channel state. USB 2.0 was introduced in 2001 and has achieved great-leap-forward development of up to 480 MB/s high-speed transmission rate. In 2010, USB 3.0 finally hit the market.

USB 3.0 is the third major version of the Universal Serial bus (USB) standard for computer connections. Among other improvements, USB 3.0 adds a new transfer mode called SS, which can achieve data rates of up to 5 GB/s (625 MB/s), more than ten times the high-speed mode of USB 2.0480 MB/s (60 MB/s).

In addition to the different connectors used on the USB 3.0 cable, various USB 3.0 connectors also have SS capital letters on the blue ports or plugs that are different from version 2.0.

A subsequent standard, called USB 3.1, was launched in July 2013 and provides a transmission rate of up to 10 GB/s (1.25 GB/s, known as "SuperSpeed+"), which is comparable to the first version of Thunderbolt.

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