Basically, it is more stable if it is directly connected to the USB port of the PC.
(However, if the PC’s power supply is vulnerable, the self-powered HUB may be stable.)
There are a few things to keep in mind when using HUB.
１．Use USB3.0 HUB.
If you use the USB 2.0 type, it will not work normally.
However, if you adjust the number of clocks on the camera side, the video may be displayed.
However, it may cause abnormal behavior, such as extreme slowdown, or low-resolution cameras that show up but not high-resolution cameras.
２．As much as possible, use a self-powered HUB.
Especially when using a notebook PC, the power supply to the camera may be insufficient when using USB bus power, and abnormal operation may appear.
Of course, it depends on the power capacity of the PC side, so it may work just fine.
（Supplement）
Even if you choose a USB 3.0 self-powered HUB, you can see some HUBs that do not have USB 3.0 communication speed.
(Depending on the HUB, the communication speed may be reduced.)
In this case, abnormal behavior may occur, such as a low-resolution camera working but a high-resolution camera not working.
