Typical models: Samsung E638 series, D4 18 series; NEC N6 10 series; Siemens 25 series and 55 series; Sony Ericsson mobile phone data cable; Panasonic mobile phone data cable; Lenovo mobile phone data cable and so on. Unusual popular chips, special chips such as DKU-5, CA-42, DCU- 1 1, etc.
Note: Don't think that the quality with IC is good, and the quality without IC is poor. In fact, whether there is IC or not is produced according to the applicable model of mobile phone. Original factory; Domestic brands; There is no license in China.
1, original factory: directly produced by mobile phone manufacturers, or providing materials to a manufacturer for OEM, marked with the brand of mobile phone, with the best quality and the most expensive price.
2. Domestic brands: the data cable has its own brand, and the address and telephone number of the manufacturer are printed on the package, which is more formal and inexpensive, such as Dingli USB data cable.
3. Unlicensed: there is no logo of the manufacturer and brand. This kind of data line is divided into two categories. The first is the data line of professional export. Foreigners don't need to put up the brand of China. The quality of this line is very good, the price is lower than that of domestic brand lines, and the cost performance is the highest; The second is the miscellaneous brand line. The price is very low and the quality is very poor. Be careful when buying. Please choose a reputable seller to buy. USB3.0 is a USB3.0 promotion group composed of industry giants such as Intel, Microsoft, Hewlett-Packard, Texas Instruments, NEC and ST-NXP. On June165438+1October 18, 2008, it was announced that the USB3.0 standard had been officially completed and publicly released. USB3.0 standard provides ten times higher transmission speed and higher energy-saving efficiency than USB 2.0, which can be widely used in PC peripherals and consumer electronics products. The theoretical bandwidth of USB3.0 interface is increased to 5Gbps, while the theoretical bandwidth of USB2.0 is 480Mbps. All high-speed USB2.0 devices will have better performance after getting USB3.0.
Main differences:
1. 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, which is one of the main differences between USB3.0 and 2.0.
2. Low power consumption (about 25% lower than USB2.0 when the data transmission capacity is 20MB/s);
3.USB3.0 is more energy-saving than 2.0, and the power-saving mode can be used for temporarily waiting devices;
4.USB3.0 can provide more power (2.5W to 4.5W) through cables; 5.USB3.0 comes from backward compatibility and supports USB2.0 devices, but USB2.0 does not support USB3.0. development trends
The increasing power of USB cable means that people can use it to charge their laptops.
Intel and its allies are developing USB power transmission (USB PD) technology. USB 2.0 can transmit 2.5 watts of power, USB 3.0 can transmit 4.5 watts of power, USB BC cable can transmit 7.5 watts of power, USB PD can support 10 watts of mobile phone devices, 18 watts of tablet devices and most peripherals, 36 watts of thin client devices, larger peripherals, 60 watts of notebooks, docking stations and 6550.
The appearance of USB PD simplifies the charging process of mobile phones, tablets and other devices. Intel engineers Sanders and Dunstan said: "By supporting devices such as tablets and laptops, it makes the charging range wider."