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The USB data cable is used for the connection and communication between the computer and the external device, and can also be used for the charging of the mobile phone and the external data connection. In layman’s terms, a connection cable for data transmission and charging. According to different interfaces and data lines of USB, supported devices include: mouse, keyboard, printer, scanner, camera, flash disk, MP3 machine, mobile phone, digital camera, mobile hard disk, external optical floppy drive, USB network card, ADSL Modem, Cable Modem and other electronic products.

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Introduction of USB cable
USB is the most widely used external bus standard in the PC field. It is used to standardize the connection and communication between computers and external devices. The USB interface supports the plug-and-play and hot-swap functions of the device. With the rapid development of computer hardware, the application of USB has increased the speed of data transmission between external devices. The biggest benefit of the speed increase for users is that they can use more efficient external devices. For example, with a USB 2.0 scanner, it only takes about 0.1 second to scan a 4M picture, greatly improving work efficiency.

Interface definition of USB cable
Red, white, green, and black are standard wiring colors, corresponding to pins 1, 2, 3, and 4;
The four wires are 1-power, 2-data, 3-data, 4-power.
The general arrangement is: red, white, green, black, from left to right
definition:
Red – USB power supply marked with – VCC, Power, 5V, 5VSB
White – USB data cable (negative) – DATA-, USBD-, PD-, USBDT+
Green – USB data cable (positive) – DATA+, USBD+, PD+, USBDT+
Black – Ground – GND, Ground
USB is a commonly used PC interface with only 4 wires, two for power and two for signals. It should be noted that the positive and negative poles must not be reversed, otherwise the south bridge chip of the USB device or computer will be burned!

Common USB interface: miniUSB male port (type A plug), miniUSB male port (type B plug), USB male port (type B), USB female port (type A socket), USB male port (type A plug).

Specifications
USB data cable interface spec
The female base of the mobile phone uses a 10pin mini USB connector, the model is LINKTEK: USBXN-01015-TP0X (compatible products from other manufacturers can also be used). The pin arrangement is shown in Figure 1 (inside view):

USB data line interface definition:

Wire requirements:
1. The interface on the PC side is the standard Stand A interface.
2. For the specification and size of the USB interface, please refer to the detailed regulations in the USB2.0 protocol standard.
3. The interface of the mobile phone is the above-mentioned 10 pin MINI USB interface male, please choose the matching interface.
4. The two ends of the download line are the mobile phone connection port and the PC USB port respectively. The wire length is 1 meter, the wire diameter is 3.8mm, the wire is a standard mesh shielded wire, and the outer sheath and SR are 75-degree flame-retardant PVC.