It comes and works as advertised. Just note that this is not actually a 20-port USB hub. These are two 10-port USB hubs in one box. That's why it has two USB Type-B ports on the back - you can see them in one of the photos in the description on the Revain website. That means you use two USB 3.0 data cables (supplied by Sipolar) to connect this hub to two USB 3.0 ports on the host computer. It is no problem for me. This is actually an advantage, as the 5 Gb/s data rate on each host-to-hub cable is only shared by 10 downstream ports, not 20.
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