First of all, the hub of usb 3.0 all in 1 hdd docking depends on the number of ports, the more can be up to eight in one, etc., the low can also be two in one, one to one, depending on consumer demand, for example A simple example is that some have only type C in and then connect three USB type A 3.0 ports. This is a three-in-one. When communicating with customers, it is recommended to first look at the product application and price that the customer wants to push. How many devices are needed, such as an external screen to use, and a wireless mouse receiver, to connect a wired mouse, or to use a USB flash drive, a USB hard drive, or need to be connected to a power supply for charging, or For business needs, RJ45 is necessary, or whether to use all of these interfaces at the same time, all need to be measured.
In general, a small hub of 1 to 4 is enough. If there are more, the power supply will not be enough. In the most direct way, a usb port can only be inserted into a usb device in theory! You may not be able to bring it if you plug in two. Of course, you can use a chip or a solution to improve it, but if there is no special customer demand, try to choose the best solution with less mouth.