I want to buy a pure usb 3.1 typec hub but I can't find it in a certain treasure. Is it because there is no such thing as a usb typec hub in this world?

Replies

• Anonymous10543 Sep 4, 2021
  Is there a hub that can switch usb-c input? All the ones on the market now are usb3. The requirement is a monitor usb-c input. A Mac mini and an MBP are both usb-c outputs, which can switch two different outputs with one click.
• Anonymous10544 Sep 5, 2021
  https://www.zhihu.com/question/36350042/answer/993044104 Alternative: a normal usb hub + multiple usb male to typec female adapters (dog head
• Poster Sep 5, 2021
  @ Anonymous5126 @ Anonymous4801 I saw the LG ultrafine mentioned by a V friend in LS. It belongs to 1 TB port in and 3 typec ports out. This monitor should be TB3 because there was no TB4 at that time. However, its TYPEC port only has 5G bandwidth, which should be because the display function takes up other bandwidth. I searched on Apple's official website with the thunderbolt keyword. The closest product is Belkin Thunderbolt 3 Dock Pro, but it only has one TB3 in and one TB3 out, and there is also a C that says it is powered, which is equivalent to not adding the C port that can be used. The two in the stackexchange post are TB4, and one of them was mentioned in a V friend's reply, but he didn't buy it and didn't know how stable it was. all in all, can it be understood that port A can share bandwidth in the form of Hub, but port C cannot? These two ports are not only different in physical form, but the logic of the main control chip is also completely different? In addition, what I am currently using is the imac that comes with a 5k monitor, so the monitor cannot be downgraded. If I have a monitor in the future, I will wait for the stock to rise and buy a 6K... I shouldn't buy 4k and 5k again
• Poster Sep 5, 2021
  @ Anonymous5126 mentioned in the original post: Update (2018-07-30): Accidental Tech Podcast reports on a rumor that next year Intel will finally ship the chip that's needed for making a USB-C that adds additional type-C ports. We've heard from an anonymous person that Intel is finally releasing a hub chip for USB-C next year. We may not see products based on it until 2020. So now it's September 2021 is this chip still not available... Or is it TB4 that this is said? Instead of usb-c hub?
• Poster Sep 5, 2021
  @ Anonymous10543 I used to have a dell monitor with two DP input ports. Check if your monitor also has two?
• Poster Sep 5, 2021
  @ Anonymous10544 hahahaha, if I were an unscrupulous merchant, I would make this product now (ordinary hub plus built-in N heads of a to c) and sell it at a high price to people like me who are struggling to find usbc hub.....
• Anonymous4801 Sep 5, 2021
  @ Poster 4K is two Thunderbolt 3 ports and three type-c ports One wire is connected to mbp charging, external display and external type-c devices https://i.imgur.com/91xb3Vd.jpg 5K can only support one Thunderbolt 3 and three type-c due to higher resolution and bandwidth reasons
• Poster Sep 5, 2021
  @ Anonymous4801 It's really good, but it's not suitable for me to buy this now. A big guy only uses it as a hub, and there's not that big place at home...
• Poster Sep 5, 2021
  @ Anonymous4801 u1s1, this thing is really great for use in the office
• Anonymous11092 Sep 5, 2021
  I think the same as you and think it's technically okay. It's just that the market is too small and no one will do it for the time being.
• Poster Sep 5, 2021
  @ Anonymous11092 Why do I think the market is not small? For example, the M1 mac mini and the low-end version of the M1 imac only have two c ports. How can this be enough?..
• Anonymous5126 Sep 5, 2021
  @ Poster Thunderbolt and usb are two protocols, physical interface bearer protocol. In the past, their physical interfaces were completely different, but only recently they were unified into the physical interface of typec. Just because Thunderbolt 3 can implement chub doesn't mean usb can. The general reason why usb cannot be converted to multiple USBs is that it cannot recognize the type of data transferred; Thunderbolt 3 is equivalent to packaged transmission, so it can be converted to multiple USBs, but this still doesn't mean that it can be converted to multiple thunderbolts. This was not really realized until Thunderbolt 4. In addition, Thunderbolt 3 can't meet the requirement of allocating video bandwidth to data bandwidth as you mentioned, because about 22G of its 40Gbps bandwidth is allocated to video, and data transmission is only 18G, which means that even two usb3.1 can't do it. Thunderbolt 3 only has video bandwidth that can occupy data bandwidth, but data bandwidth cannot occupy video bandwidth. Finally, regarding the shared bandwidth you mentioned, "Product manufacturers that can be used seriously will at least consider whether the downlink interface can be shared." It is still feasible for things like shared bandwidth to deceive ignorant junior consumers when they appear in inferior docking stations worth hundreds of dollars. After all, they have been cheated and don't know who did it; If it appears on thousands of advanced docking stations, advanced consumers are not fools, just wait to be sprayed. Plug in a monitor and then the ssd bandwidth is not enough to hang up. Don't you want to laugh when you think about it carefully? As offensive as it may be, I would say that you are very new to these interfaces and protocols. Now that you know that the result of converting usb to multiple usb is not working, the so-called feasible ones you encounter are all feasible in a non-broad sense, and Apple can scrap them all at once; If you want to find out what the principle is, the sparse reply of v station is too inefficient, and the station friends are not obliged to teach you the knowledge system from beginning to end. (Although I bought a lot of c-port peripherals, I still can't guarantee that I understand all the details of usb and Thunderbolt.) Very knowledgeable knowledge needs to be paid. You can go to the corresponding technical consulting office to pay for consultation, but it usually costs a few questions. It's enough for you to buy a Thunderbolt 3 docking station from the official website. I remember the most expensive one can plug into a c-port usb3.1 and a c-port usb3.0, which is already very good. So I said at the beginning that what you want, just buy it according to the official website. The above documents are enough for ordinary people. If it is written above, it is OK, and if it is not, it is not OK. Manufacturers are really not fools, especially Apple.
• Poster Sep 5, 2021
  @ Anonymous5126 Thank you for your reply. I'm really very unfamiliar, but I can really tell that Thunderbolt and USB are different protocols, so when I asked the question in the post, I just said usb 3.1, not Thunderbolt. My need is to implement usbc hub. I say thunder and lightning because everyone's replies mention thunder and lightning hub. I said bandwidth allocation is trying to analyze the LG ultrafine mentioned in the above post, his does have 3 typec outputs but only 5G bandwidth. So I understand again that because typeA can only connect to USB devices, there will be no problem for users to only connect USB devices. However, there are too many devices that can be connected to the C port, and only one HUB does not support display and PD, which will cause trouble to users, so simply don't make the C port? I understand that what Apple doesn't do is sometimes because it really doesn't work, but some of it is not done from a commercial point of view, which is not necessarily technically impossible.
• Anonymous11092 Sep 5, 2021
  @ Anonymous5126 Thanks for the rational discussion. 1. There is no "low-level" problem in sharing bandwidth. The four thunderbolts of MacBook Pro are also two groups of two sharing protocol bandwidth respectively, and any usb-hub is also N sharing one bandwidth. Four PCI-e interfaces (except the one directly connected to the cpu) and more than a dozen usb interfaces on various motherboards are sharing the limited bandwidth of the superior bus. This is not a deception to consumers, and there is no industry consensus that all interfaces must be at full speed at the same time. 2. Can usbc make more than 1-minute hub? I think it is possible, but no one has done it for the time being. There is no stone hammer evidence in the building, such as datasheet, to show that there are restrictions.
• Anonymous5126 Sep 5, 2021
  @ Poster Ultrafine 4k uses Thunderbolt 3 as input. If you read my reply above carefully, you will know that Thunderbolt 3 only supports up to 18G data bandwidth, so it can only plug in 3 usb3.0 or 1 usb3.1 +1. usb3.0, and the remaining data bandwidth less than 5G is used by usb2.0 or sd cards. The remaining 22G bandwidth can only be used for video output. If the data bandwidth cannot be used, it will be a waste if you don't use it. I have two of this monitor, and it should still be convincing. So if you want a Thunderbolt 3 docking station to only expand the c port of usb3.1 and transmit data, then you can only make one c port, not even two, because the bandwidth is not enough. As for the usb3.1 docking station, not to mention. I said at the beginning that this issue involves a lot of things, and I can't finish telling you even if I am kind and obliged to tell you. After I reply to you, I guess you have many questions again. If you are unfamiliar, you will know that you are unfamiliar. Just buy whichever you can buy, and really don't think too much. If you really want to figure it out, go to technical consulting, pay for knowledge, and give you enough money, and they can tell you until you fully understand it, but it's not necessary, right?
• Anonymous5126 Sep 5, 2021
  @ Anonymous11092 Hi 1. Your understanding of shared bandwidth is different from what the original poster said. The dual Thunderbolt sharing of 40Gbps of MacBook Pro you mentioned, for example, is based on the fact that Thunderbolt 3 has sufficient bandwidth and has multiple uses. This kind of sharing can add an additional typec interface to improve scalability. One is plugged into ssd and the other is connected to an external monitor. The situation is very common and reasonable; But what the poster originally meant was that one usb3.1 interface should be expanded to multiple usb3.1 interfaces. Let's not talk about whether it can be, even if it can be connected, it is meaningless at all, because even if you insist on connecting it, it is only reasonable to expand two usb3.0 interfaces by one usb3.1. 2. My impression is that usb3 really can't do cHub, and it was not until usb4 that it was realized by using thunderbolt. This is a brief introduction I just found https://www.cnet.com/tech/computing/usb-4-will-resurrect-those-useful-usb-hubs-vanished-with-usb-c/ And if it is done, some people do try to implement it in a narrow sense, but there are many problems, and it can't be used normally basically
• Anonymous3279 Sep 6, 2021
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• Anonymous3279 Sep 6, 2021
  9.0 ha D92sXL38yuP ah https://m.tb.cn/h.fYv211W? sm = 45020b CalDigit Thunderbolt 4 Element Hub Thunderbolt 4 Docking Station 1 to 7 USB4 Hub
• Anonymous10545 Sep 6, 2021
  I don't know if it's because if Type-C (USB function only) is used downstream, the Hub needs to add an additional switch chip to realize the function of plug direction detection. Currently only USB3.2Gen 2x2 20Gbps must use Type-C, and other rates can be achieved with Type-A. The poster can consider buying a port A hub + Type-C female to Type-A male converter to meet this need.
• Anonymous11092 Sep 6, 2021
  @ Anonymous5126 lz also didn't ask 1 usb3.1 to expand n full speed usb3.1. From the reply on the 8th floor, we know that lz accepts shared bandwidth. One of the multiple ports is connected to the hard disk and the other to the keyboard and mouse (the topic of few keyboards and mice in the c port will not be discussed), which is also a very reasonable requirement. As for the actual products, the products on the third floor, if port A is physically dismantled, it is equivalent to realizing c hub.