This video is about a USB hub with power supply which can charge your laptop and transfer data at same time. This usb 3.0 hub is from a company called "Lention" in which you can connect external power supply of 60w for charging along with high speed data transfer.
This video released by @lotoftech on YouTube. The product is LENTION 8 in 1 3.3FT Long Cable USB C Hub (CB-C37)
Thanks for @lotoftech provide us this very nice products review.