USB is the abbreviation of English Universal Serial Bus (Universal Serial Bus), which is an external bus standard used to regulate the connection and communication between computers and external devices. It is an interface technology applied in the PC field. The USB interface supports plug and play and hot plugging of devices. USB was proposed by Intel, Compaq, IBM, Microsoft and other companies at the end of 1994.
In order to distinguish between the USB2.0 and 3.0 interfaces of the industrial computer, pay careful attention that the colors of these two interfaces are different. The 3.0-selected USB interface has a blue core. If it is 2.0, the USB interface is generally black or white.
In terms of transfer speed, USB 3.0 transfers files faster than 2.0. The maximum transmission rate of USB2.0 is 480Mbps, which is 60MB / s. The actual transfer rate of USB3.0 is about 3.2Gbps (ie 400MB / S).
Our common industrial computer USB interface is used:
1. USB mouse, keyboard device, box, gamepad;
2. Industrial printers and scanners;
Third, the camera, data flash disk, SD connected to the slot;
Fourth, external optical drive, mobile hard disk, mobile phone charger, USB network card;
Fifth, communication equipment ADSL Modem, Cable Modem.