Sub Group is currently leading the production of USB cable, such as several specifications were 1.0,1.1,2.0,3.0, high quality, enjoy a high reputation in the industry. ★ ★ ★ ★ ★ TEL: +86- USB is the abbreviation for Universal Serial BUS in English, Chinese meaning is "Universal Serial Bus." It is not a new bus standard, but the application interface technology in the PC area. USB is the end of 1994 by Intel, Compaq, IBM, Microsoft and other companies jointly proposed. But until recently, it was widely applied. From November 11, 1994 version released later USB V0.7, USB version has gone through years of development, has now been developed for the 2.0 version, a standard extension to the current computer interfaces. At present the main board is the use of USB1.1 and USB2.0, USB version of the compatibility between the well. USB plug with a 4-pin plug as standard, the use of daisy chain all the peripherals you can connect up to 127 external devices can be connected, and no loss of bandwidth. USB requires a host of hardware, operating systems and peripherals to support three areas to work. Currently the board is generally used to support USB function control chipsets, motherboards are also equipped with USB interface socket, and the back of the socket in addition, the board also set aside a USB pin, front of the chassis received through the connection as a pre-USB interface to facilitate use (note that in connection to carefully read the motherboard manual and press the graph connected, do not take the wrong leaving equipment damage.) And USB interface can also be connected through a special USB cable to achieve double machine interconnection, and can be extended through the Hub more interfaces. USB has a transmission speed (USB1.1 is 12Mbps, USB2.0 is 480Mbps, USB3.0 is 5 Gbps), easy to use, support hot plug, connecting flexible, independent power supply, etc., can be connected to the mouse, keyboard, printer , scanners, cameras, flash drives, MP3, mobile phones, digital cameras, mobile hard drive, external optical floppy, USB card, ADSL Modem, Cable Modem, etc., almost all external devices. USB is an external bus standard to standardize computer and external devices and communications. USB interface supports Plug & Play and hot swap function devices. USB interface can be used to connect up to 127 peripherals, such as mice, modems, and keyboards. Since the 1996 launch of USB, serial and parallel port has been successfully replaced, and a large number of today's personal computers and intelligent devices