Addendum: After I disassembled this part, I realize that is a (China) Fake !! Yes, it is not even a HUB neither 2.0 nor 1.1 is basically a USB extension stop with 4 parallels Buchsen.Auf the board is a blob of epoxy resin where probably the controller chip shed his soll.Ich have piecemeal removes the resin and guess what there was splashing around, namely there is nothing just a dab of resin! including indicated interconnects the no Microchip are not connected to anything ... nothing strong piece, the seller should time its dealers on their feet treten.Ich think that simply scam or at least for misleading advertising.