Although the build quality of this is great and it delivers the promised speed, it really could have done with either being powered or taking more power via USB-PD (if your connected host allows). I found that my Logitech Brio 4K webcam could only manage 1080p when connected directly to the UGREEN hub. Initially I thought that it was due to USB speed, but in fact it was because there was insufficient electrical power available for 4K use. In the end, to get 4K, I had to connect it (via the UGREEN hub) to my powered monitor USB 3.0 hub. It now works properly but I wasn't expecting to still be relying on the monitor hub in a daisy-chained hub setup. At least I have more of the 10Gb UGREEN ports available now.