The USB cable supports devices according to different interfaces and data cables: mouse, keyboard, printer, scanner, camera, flash disk, MP3 player, mobile phone, digital camera, mobile hard disk, external optical floppy drive, USB network card, ADSL Modem, Cable Modem And other electronic products. Ordinary USB data cables do not have a central control chip, and they must be plugged into a mobile computer to recognize the cable, which is cheap. The USB data cable has an IC with a central control chip, and it will recognize the cable without plugging in a mobile phone or computer, so the price is more expensive than that without an IC. The working principle of the data line with chip is to convert the USB interface into a serial port and display it on the computer.
