| The interface between our computer and mobile phone has been around for a long time. Our USB interface has been used for a long time, and the USB interface on our general computer has also been upgraded for a period of time, upgrading from the original 1.0 standard. Up to now the USB3.2 standard even to today's USB Type-C interface, there are too many things to say here, of course, there are also many ways to wait for us.  Various standards for USB interfaces To prevent being trapped, we need to first understand the USB interface of various specifications. So far, our USB interface standard has undergone many generations of development from USB1.0 to the current USB3.2. Currently we use it. For the USB2.0-USB3.1Gen2 standard interface, it can be said that USB3.0 started, our USB data interface ushered in a substantial development.  When our USB interface comes up with the 3.0 standard, the blue interface allows the new interface to be separated from the previous interface at first glance, but although the USB 3.0 standard has been released for ten years, so far it is not all on our computer. The USB interface is USB3.0 standard, not to mention the USB3.1 Gen2 or even USB Type-C (USB3.2 standard) interface. What we need to pay attention to here is that not all blue interfaces have 10Gbps, USB3.0 is very mixed, and not all Type-C interfaces are USB3.2 standards. Since the implementation of USB3.0 standard, it has appeared A very chaotic scene, and chaos is the reason why business routines are successful. Chaotic interface standard is the beginning of the merchant routine The most famous event in the standard chaotic routine is: In the early days of Apple Macbook, the USB Type-C interface was claimed to be the USB3.1 standard. As a result, the speed of this interface was not 10Gbps of the USB 3.1 standard. Only 5Gbps. As a result, in the official logo, this is USB 3.1 Gen1, this is actually the USB 3.0 vest. These vendors are really going to play, since Apple is doing this, then everyone is doing this, USB 3.1 is good, consumers like it. As a result, many consumers actually didn't notice this USB 3.1 Gen1 and USB3.0. the difference. Then the USB-IF organization in order to standardize the standard (I always feel that this is convenient for manufacturers to better flick), USB 3.0 is now no longer available in the USB-IF specification, but replaced with USB 3.1 Gen1, which is USB 3.1 Gen2. There are a lot of U disk on the market today, the data cable is labeled USB 3.1, and it doesn't tell you whether it is Gen1 or Gen2 standard. So how do we tell if this USB3.1 product is USB 3.0 vest or true USB 3.1 Gen2? There are two main methods: Look at the speed, a USB 3.1 Gen2 standard specification U disk continuous reading speed should exceed 500MB / s; Look at the price, the current mainstream market price of USB 3.1 Gen1 products is 350 yuan / 128GB, If it is the Gen2 standard, the price doubles normally.  To give an example: When you want to transfer a 5GB movie file to a mobile storage device, in a USB 3.1 Gen1, it takes 10s in theory, and if you use USB 3.1 Gen2, you only need 4.13s. In theory, USB3 .1 is more than doubled. In fact, because the impact of other factors such as storage of particles will not reach this speed, but we must know that the USB interface can not only be used to connect storage devices, we need to understand the emergence of a new interface - USB Type -C interface, As a result, the emergence of this USB Type-C interface has led us to face more chaotic choices, and more and more merchants have more routines. The emergence of the USB Type-C interface is more chaotic We can still distinguish them according to various standards. As a result, the appearance of USB Type-C completely makes us more chaotic, because the Thunderbolt 3 transmission protocol is installed on the USB Type-C interface, so many people have the impression of USB Type. -C stands for high-speed interface. But in fact, USB Type-C is just an interface, it can carry a variety of transmission protocols, even if you like it can be used only with USB1.0 (transmission speed is only 192KB / s) transmission protocol .  At the beginning, USB3.0, USB 3.1 Gen1, USB 3.1 Gen2 are all blue Type A interfaces, and the other end interface is to see the needs of connected devices. Since the USB Type-C interface is available, the entire market has been More confusing. Originally USB Type-C was born for USB 3.2 (transmission rate 20Gbps). It needs to be connected to USB Type-C to implement USB 3.2 standard. Also because of the advantages of multi-contact, it is valued by lightning transmission protocol, lightning 3 transmission The protocol (40Gbps) can be mounted on the USB Type-C interface, which also creates the symbol of the USB Type-C high-end high-speed. However, some mobile phones and PC manufacturers use USB Type-A at the other end to use USB Type-C to use the Type-C interface to achieve faster transfer rate and charging speed, and then imply that their mobile PC products are used. USB Type-C can get these BUFF bonuses, and many consumers don't understand these routines. to sum up
Therefore, we must remind you that there is a USB Type-C interface that is not necessarily a lightning high-speed interface. We must pay attention to the product when we buy the product. We all know that the lightning interface is twice as fast as the simple USB Type-C interface. Can transmit video signals, even the charging speed is much higher, so see the USB Type-C interface of the merchant label should also pay attention to whether there is lightning lightning sign, and what kind of Type-C U disk on the market recently also needs Careful screening, although the use of Type-C interface, but the speed can be slow to the pit. The same USB interface can have several times the speed difference. Especially those with Type-A to Type-C Type-C promotes its U disk ultra-high speed, you need to be alert. | |||||||||||||||
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