USB data cable factory: USB interface data cables can be roughly divided into three categories based on whether they come with an IC chip: without an IC; With IC; Special chips.

1. Without an IC, also known as a direct line: without a central control chip, only when a mobile phone or computer is plugged in can the line be recognized. This type of line cannot achieve the "flash" function, but other functions can be basically achieved, such as data transmission functions such as picture ringing and internet access.

2. Chip: With a control chip, the models of ordinary chips are 2303, 2101, and 3116. You don't need to plug in your phone or computer to recognize the cable. Due to the price of an IC being over ten yuan, the price is definitely higher than that of a straight line, which is why the price of each cable is different and much more expensive. The working principle of a data cable with a chip is to virtualize USB into a COM port, and convert the USB interface into a serial port for display on the computer. This type of wire can basically achieve the function of "brushing the machine".

3. Equipped with special chips or dual chips: Non ordinary popular chips, specialized special model chips such as DKU-5, CA-42, DCU-11, etc. The price of these data cables is higher than those with single chips.