Categorization：Product Information
USB is "Universal Serial Bus", the Chinese name is Universal Serial Bus, which is a new interface technology widely used in the field of PC in recent years. This is a new type of interface technology that has been widely used in the field of PC in recent years, and the USB interface is characterized by faster transmission speeds, support for hot-swapping, and the connection of multiple devices. It has been widely used in all kinds of external devices. Currently there are three kinds of USB interface: USB1.1 and USB2.0, as well as the emergence of usb3.0 in recent years. theoretically, USB1.1 can reach a transmission speed of 12Mbps/sec, while USB2.0 can reach a speed of 480Mbps/sec, and can be downward compatible with USB1.1. with the rapid development of computer hardware, the peripheral devices are increasing, keyboard, Mouse, modem, printer, scanner has long been known, digital cameras, MP3 Walkman one after another. usb connector why some have a rolled edge, some do not? USB connector from the surface, the male chassis are not rolled edge, the female chassis most of the rolled edge, but some of the machines in order to save space, there is no rolled edge. For female chassis, the difference between rolled edge and unrolled edge is: no rolled edge in order to save space, but also in order to match the shell panel's beauty; with rolled edge, it can be convenient for male and female to plug in conveniently; with rolled edge, it can be grounded with the shell iron shell, which can be more closely in contact with each other.
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