Forskellige typer USB-datakabel til salg

USB-datakablet bruges til forbindelse og kommunikation mellem computeren og den eksterne enhed; den kan også bruges til opladning af mobiltelefonen og forbindelsen med ydersiden. I lægmandssprog, ledningsnettet, der bruges til at overføre data og oplade.

Introduction of USB data cable
USB is the most widely used external bus standard in the PC field, and is used to regulate 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 increase in USB interface speed 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.
According to different interfaces and data lines of USB, supported devices: 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.

Interface definition of USB data line
Red, white, green, and black are standard wiring colors, corresponding to pins 1, 2, 3, and 4;
The four lines are 1-power, 2-data, 3-data, 4-strøm;
The general arrangement is: red white green black from left to right
definition:
Red – USB power supply marked with – VCC, Strøm, 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:
From left to right: 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 of the USB data cable
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:

pin number	name	function definition
1	dangling	dangling
2	VCHG	Charging voltage
3	dangling	dangling
4	USB_D－	USB dat－
5	dangling	dangling
6	USB_D+	USB data+
7	dangling	dangling
8	dangling	dangling
9	dangling	dangling
10	GND	grounding

Wire requirements for USB data:
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 data cable are the connection port of the mobile phone and the USB port of the PC. The wire length is 1 måler, the wire diameter is 3.8mm, the wire material is a standard mesh shielded wire, and the outer jacket and SR are 75-degree flame-retardant PVC.

Classification of USB data lines
Ordinary USB data cable
There is no central control chip, and the mobile phone and computer must be plugged in to recognize the line, and the price is cheap. Typical models: Samsung CDMA series, D500 series; Motorola E398 series, V3 series; Nokia DKU-2; NEC N720 series; Siemens 65 series and so on.

With IC USB data cable
With a central control chip, the models of ordinary chips are 2303, 2101, 3116, and the line can be detected without plugging in a mobile phone or a computer. Since the price of an IC is more than 10 yuan, the price is more expensive than that without IC. The working principle of the data cable with a chip is USB to COM, which converts the USB interface into a serial port and displays it on the computer.
Typical models: Samsung E638 series, D418 series; NEC N610 series; Siemens 25 series, 55 series; Sony Ericsson mobile phone data cable; Panasonic mobile phone data cable; Lenovo mobile phone data cable and so on.

iphone/android han mikro usb kabel

computer/printer / oplader lightning usb kabel

samsung mini usb cable connector adapter

camera fast charging double usb cable

laptop hdmi usb cable diagram

otg extension inside data usb cable

magnetic usb cable

difference usb cable

Special USB data cable
Non-ordinary popular chips, dedicated special type chips such as: DKU-5, CA-42, DCU-11 and so on.
Note: Don’t mistakenly think that the quality with IC is good, and the quality without IC is poor. The actual with or without IC is produced according to the applicable model of the mobile phone.

USB data classification
Original factory; domestic brand; domestic without license.
1. Original factory packaging: directly produced by the mobile phone manufacturer, or provide materials and entrust a manufacturer to manufacture. The brand of mobile phone marked on it has the best quality and the most expensive price.
2. Domestic brand: The data cable has its own brand, and the address and phone number of the manufacturer are printed on the package, which is more formal, good in quality and low in price. Such as YAXUN USB data cable data cable.
3. Unlicensed: There is no identification of the manufacturer and brand. This type of data cable is divided into two categories. The first is the data cable for professional export, and foreign customers do not need to paste Chinese brands. The quality of this kind of line is very good, and the price is still lower than that of domestic brand lines, which is the most cost-effective. The second is the non-brand line, the price is very low, and the quality is very poor. Everyone should be careful when buying, please choose to buy from more reputable sellers.

USB2.0 and 3.0
USB3.0 is a USB3.0 promotion group composed of industry giants such as Intel, Microsoft, HP, Texas Instruments, NEC, ST-NXP, etc., announced on November 18, 2008 that it had officially completed and publicly released the USB3.0 standard. The USB3.0 standard provides ten times the transmission speed of USB 2.0 and higher energy-saving efficiency, and can be widely used in PC peripherals and consumer electronics products. The theoretical bandwidth of the USB3.0 interface is increased to 5Gbps, while the theoretical bandwidth of USB2.0 is 480Mbps. All high-speed USB2.0 devices will perform better when they are connected to USB3.0.

The main difference between USB2.0 and 3.0:
1. The data bandwidth of USB3.0 is ten times that of USB2.0, which can reach 5Gb/s (480MB/s), and the synchronous transmission bandwidth can also reach 384MB/s. This is one of the main differences between USB3.0 and 2.0;
2. Low power consumption (about 25% lower power consumption than USB2.0 at 20MB/s data transfer);
3. USB3.0 is more energy-efficient than USB 2.0, and you can use power-saving mode for devices that are temporarily in a waiting state;
4. USB3.0 can provide more power through the cable (2.5W increased to 4.5W);
5. USB3.0 is backward compatible and supports USB2.0 devices, but USB2.0 cannot support USB3.0.

The development trend of USB data cable
The increasing power of USB cables means people can use them to charge laptops.
Intel and its allies are developing USB Power Delivery (USB PD) technology. USB 2.0 can deliver 2.5 watts, USB 3.0 can deliver 4.5 watts, and a USB BC cable can deliver 7.5 watts. And USB PD can support 10 watts of mobile devices;
18W tablet devices and most peripherals;
36W client devices, larger peripherals; 60W laptops, docking stations and 100W workstations.
The emergence of USB PD simplifies the charging process of devices such as mobile phones and tablets. Intel engineers Saunders and Dunstan said:
“By supporting devices such as tablets, laptops, etc., it enables a wider range of charging.”

Interface Classification of USB Data
USB female head, USB male head, USB printer cable, MINI USB, micro USB
1. Type A USB plug (plug) and Type A USB socket (receptacle)
Pin order (Plug on the left, Receptacle on the right):
Pin definition:

serial number	definition	color recognition
1	VBUS	Red
2	D-	White
3	D+	Green
4	GND	Sort

Package Dimensions (Single PIN Receptacle):
2. Type B USB plug (plug) and Type B USB socket (receptacle)
Pin sequence (Plug on the left, Receptacle on the right, note that the slant pointed by the arrow is upward, and the USB port is facing itself):
The pin definition and package size are the same as the Type A USB pin description.
Package Dimensions (Single PIN Receptacle):
3. Mini B type USB plug (plug) and Mini B type USB socket (receptacle)
Pin order (Plug on the left, Receptacle on the right, note that the wide side is on the top, and the USB port is facing itself):
Pin definition:

serial number	definition	color recognition
1	VBUS	Red
2	D-	White
3	D+	Green
4	ID	Not connected
5	GND	Sort

Package size (Receptacle):
The above part is the content of the USB 2.0 specification, and the following Micro USB is actually a supplementary specification released in 2006.
Since this interface definition cannot backward support the USB 3.0 protocol, it still belongs to the USB 2.0 protocol package.

4. Micro USB plug and socket
Micro USB Supplement defines the Micro USB interface for cellular phones and portable devices, which is smaller than the Mini USB interface.
Among them, standard A type, standard B type and Mini-B type are all defined in the USB 2.0 specification, and the Micro USB supplemented in 2006
The specification defines, supplementing the following definitions: Micro-B plug and receptacle，Micro-AB receptacle micro charger ，male printer connector wire iphone android lightning omputer samsung arduino inside otg extension camera apple ast charging diagram double mobile laptop hdmi power difference magnetic usb cable.