How to prevent a very complicated USB Type-C world cable trouble?(ITMEDIA Mobile) --Yahoo! News

USB terminals introduced this time

　Until a few years ago, although there were many Android terminals equipped with the Micro USB terminal, the mainstream was to the USB Type-C terminal. The next three years of mobile phones are likely to be equipped with USB Type-C terminals when changing the model next time. [Image] The inside of the USB Type-C Childnnector may be the "price difference of the cable" to be Childnfused by the person who buys a smartphone equipped with USB Type-C for the first time. The Micro USB (to USB Standard A) cable is a few hundred yen, and you can get a fairly decent one, but the price of the cable with the USB Type-C Childnnector is from pin to drill. You can even get it in a hundred. I'm grateful to be able to buy at stores in the living area, such as Childnvenience stores and Hyakusen, but "Let's put music files from a PC on a smartphone", "Let's back up a lot of photos from a smartphone to a PC." It seems that it can be projected on a mobile display, so let's Childnnect it. "And Childnnected the cable I bought, but it seems that it is not broken, but I can not transfer data, but slow, I can not output video. I tend to fall into such trouble. So how do you avoid such troubles?

Know the USB Type-C standard

　Amazon.Child.If you open the JP and search for the "USB Type-C cable", items in various price range will be hit, from several tens of yen to those that exceed 10,000 yen.If you enter "USB Type-C cable 1m", you can squeeze a little more, but you can see that it is still about 700 yen to a price of several thousand yen.Where does this price difference come from?In fact, the "USB Type-C" is just the shape of the connector, the number of pins inside the USB standard, the number of pins inside the connector, and the line connected to it (the copper wire in the electric wire).Depending on the number and type of), there are things you can do.For example, in the USB Type-C to USB Type-C cable, it is in a fairly cheap cable (although the standard price is 3630 yen including tax) "Sanwa Supply USB2).0 Typec cable 1m KU-CCP510 is USB2.0という規格に準拠したもので、データ転送速度は480Mbps（1秒間に60MBのデータを転送できる）。　対する「Anker USB-C & USB-C Thunderbolt 4 100W ケーブル 0.7m is the USB Type-C in the shape of the connector, but the standard is Thunderbolt 4.It is possible to transfer data with up to 40Gbps and output video on a sub monitor with a USB Type-C port such as a mobile display.In this way, the cable with a USB Type-C connector shape is based on the USB standard specified by the USB standard, and is led by Intel.There is something that conforms to "Thunderbolt 3" and "Thunderbolt 4"."USB 2.0 "" USB 3.The numbers such as "0" indicate a version of the USB (universal serial bus) exchanged signal.The relationship between the version and the maximum communication speed (theoretical value) is as follows.・ USB 2.0: Up to 480Mbps (60MB per second) / USB 3.0: Up to 5Gbps (640MB per second) / USB 3.1: Up to 10Gbps (1 per second).25GB) ・ USB 3.2: Up to 20Gbps (2 per second).5GB) ・ USB4: Up to 40Gbps (5GB per second)I will make corrections.] USB 3.1 to 3.2 also has the concept of "Gen (generation: generation)", all of which have the same meaning.・ USB 3.0 = USB 3.1 Gen1 = USB 3.2 Gen1 / USB 3.1 = USB 3.1 Gen2 = USB 3.2 Gen2 / USB 3.2 = USB 3.2 Gen2x2 [Correction: January 19, 2022 19:30, USB 3.There was an error in the description of 1.I will make corrections.Even more complicated is the "Alternate Mode (alternate mode)" that sheds signals other than USB standard "other" in USB Type-C.For example, the signal of "DisplayPort", which is a video / audio transmission standard used mainly on PCs and smartphones, can be used (called "DisplayPort Alternate Mode").However, since DisplayPort has a large number of signal lines required for transmission, it is USB 3 when transmitting with a USB Type-C cable..You have to prepare something that complies with more than 0 standards (but not all cables are compatible). The above -mentioned Thunderbolt 3 also exchanges signals with a standard "PCI Express", which is even faster than USB standards, utilizing Alternate Mode. However, a cable that claims "Thunderbolt 3 (4)" is required for connection with Thunderbolt 3 (4) compatible devices for the signal to exchange only. USB4 is the latest version of USB standard, but is formulated based on Thunderbolt 3. A cable that claims "USB4 compatible" is recommended for connection with USB4 compatible devices. Thunderbolt 4 is almost the same as USB4, but the requirements on the specifications are partially strict (details will be omitted). USB4 and Thunderbolt 4 are supported by "tunneling", so that the signals can be mixed and transmitted. [Correction: January 24, 2022 At 11:50, there was an incorrect description of USB4 and tunneling. I will make corrections. ] ... It's confusing. Let's summarize it once. In this way, the data transfer speed varies depending on the standard, and the standard name is different, but it actually refers to the same standard, so the USB Type-C world is very complicated. The fact that the connector shape is the same, but some of the standards may be even more confused. It is also convinced that there are many cases where I could not do it with the cable I bought. So is there a way to do what you want to do?

Page 1/2