There are restrictions for using any hubs. The combined hub consumes the more energy, the more different controllers it contains. That is, you need to understand that Apple's original USBC-USB3 adapter consumes less power from the iPad Pro battery than this Sunho hub. I had the opportunity to test the full version of their hub.
This one: https://www.hypershop.com/collections/u ... -c-devices
This hub also works great with the tablet.
To these hubs, you can connect an external power supply. I found out that the complete iPad Pro power supply (18W) is not enough to prevent the iPad from discharging after connecting the hub. The speed and degree of discharge of the battery depends on the total number of functions used (that is, on which controllers are used simultaneously).
Here is a fragment of the answer of the representative of HYPERSupport:
«Sorry for my unsatisfied answer, my apologies.
With the iPadPro 18W USB-C charger, 5V 3A or 9V 2A, the USB-C port output from the Ultimate hub is only 2W to 3W( as I measured) It is too little to charge the iPadPro. The rest of power is being allocated to support other ports on the Ultimate hub.
If you use the 29W Apple USB-C charger which I have tested it on the iPadPro 2018, it's working fine. Output from the USB-C port is 13W, which is good enough to charge iPad.»
Moreover, even the power of the Apple power supply 29W is also not enough.
The Ultimate model differs from the iPad Pro model by the presence of a gigabit Ethernet controller.
Therefore, in order for the iPad not to be discharged when the hub is connected, you should use either a 61W or 87W USB-C power supply.
But with this use, it is obvious that the battery life of the iPad Pro will decrease due to the high-speed recharging of Power Delivery.
The speed of importing a video file is almost the same compared to the original adapter from Apple. And it is certainly higher than through Wi-Fi.