For ordinary users, 30AWG means low power consumption at the same transmission speed. For ordinary users, the data rate is determined by the hard disk and the OS, and there is no difference under normal use. If you don't spend money, of course, the higher the AWG, the better. If you say the relationship between the two:

1. Data cable: Use a cable that is usually connected to the computer's USB port and mobile phone. Download or upload files.. ringtones, pictures, etc. If the phone has a driver disk, you need to install the driver first..

2 Infrared.. means that two mobile phones need to have infrared function at the same time.. You can align the infrared interface to transfer files...

3. Bluetooth.. Bluetooth is the meaning of short-distance wireless transmission. It can be searched and transmitted within a short distance with a computer or mobile phone with a Bluetooth device.

Cable classification

As the structure of connectors has become increasingly diverse, new structures and applications have emerged, and attempts to solve classification and naming problems with a fixed pattern have become difficult to adapt. Still, some basic classifications are still valid.

1. The level of interconnection depends on the functions of the internal and external connections of the electronic device. The interconnection can be divided into five levels. The internal connection of the 1 chip package connects the 2IC package pins to the PCB. Typical connector IC socket. 3 printed circuit connection to the wire or printed board. A typical connector is a printed circuit connector. 4 The connection between the bottom plate and the bottom plate. A typical connector is a cabinet connector. 5 The connection between the device and the device. A typical product is a circular connector. There are some overlaps at levels 3 and 4. Among the five levels of connectors, the highest market is the third and fifth level products, and the fastest growing is the third level.

2. The level of the connection line specification. According to the classification of the International Electrotechnical Commission (IEC), the connector belongs to the electromechanical component for electronic equipment, and its specification level is: family example: connector sub-family example: circular connector type (type) : YB type circular connector variety (style) example: YB3470 specification (variant)

3. The definition of the connection line in our country. In China's industry management, connectors, switches, keyboards, etc. are collectively referred to as electrical connector components, while electrical connector components and relays are collectively referred to as electromechanical components.

4. The product category of the cable. Although the division of connector product types is somewhat confusing, technically, there are only two basic methods for the connector product category: 1 by shape: circular and rectangular (cross-section), 2 by operating frequency: low frequency and high Frequency (by 3MHz). According to the above division, the coaxial connector is circular, and the printed circuit connector is rectangular (historically, the printed circuit connector is separated from the rectangular connector), and is currently popular. The rectangular connector has a trapezoidal cross section and is approximately rectangular. The frequency division of low frequency and high frequency and radio waves is also basically the same. As for other uses, installation methods, special structures, special properties, etc., many different types can be divided, and often appear in the publications and manufacturers' promotional materials, but generally only to highlight a certain feature and use, the basic classification is still There is no more than the above division principle. Taking into account the technical development and actual conditions of the connector, from its versatility and related technical standards, the connector can be divided into the following categories (classified): 1 low frequency circular connector; 2 rectangular connector; 3 printed circuit Connector; 4 RF connector; 5 fiber connector.

5. The model number of the cable is named. The model name of the connector is the basis for customer procurement and manufacturer organization production. In the connector industry at home and abroad, there are two ideas for product model naming: one is to use the letter code plus the number method, and strive to reflect the main structural characteristics of the product in the model naming. The advantage of this method is that it is easy to identify, but the arrangement is too long and too complicated. As the connector is miniaturized, it brings a lot of difficulties to printing. At present, this method is still popular in China, and is regulated in some industry standards and even national standards, such as SJ2298-83 (printed circuit connector), SJ2297-83 (rectangular connector), SJ2459-84 (band cable connection). ()), GB9538-88 (band cable connector), etc. Due to the increasing variety of connector structures, it has become increasingly difficult to cover a certain type of connector with a naming convention in practice. Another way of thinking is to use a combination of Arabic numerals. The benefits of this approach are simple and easy to use for computer management and logo printing for small products. This is the way most major connector manufacturers in the world currently use this. It can be expected that the naming schemes that each manufacturer has to reflect its own characteristics will gradually replace the method of stipulating certain naming rules by the whole industry under the planned economic system.