I have tried several multifunctional hubs and some of them are not able to transfer data over the ethernet port. When I got this I immediately tested it on a couple of systems measuring internet speeds while a couple of USB ports were busy. I would say it happened almost every time. There is no internet speed limit, but I can use other ports, either video or USB. The only thing that heats up, but maybe that's normal with a load like mine. It has been working flawlessly for the past month.
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