This is a 7-port USB hub with 4 USB3 ports and 3 USB2 ports by Zoweetek, ZW-H355. It essentially is consisted of two ICs, GL3523 by Genesys Logic is a 4-port USB3.1 compliant hub controller and HS8836 which appears to be a 4-port USB hub controller but very little information is available online. It appears that one of the USB2 signals goes from GL3523 to HS8836 and HS8836 has 4 pairs of USB2.0 signals going to 3 USB2 ports and one of the USB3 ports. The PC board is not well cleaned especially around through-hole connections, perhaps the switches and connectors are hand soldered. It is not clear if the high-speed traces are matched. There is a footprint for input USB3 connector, but here the wires are directly soldered to the board.
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