TUSB4041I: 16 Slaves switch/hub

Part Number: TUSB4041I


Hi,

Unfortunately, the website requires selecting a specific part number, but my question is more general.
I'm looking for a switch or hub in order to split communications in a new design.
I need to transfer general data.

The structure of the system is that there is one master card controlling four identical semi-master cards. Each semi-master card controls four identical slave cards.
This means that in total, I have 16 slave cards. These 16 cards need to send data to the master card.

I’m looking for a suitable communication channel, such as USB or Ethernet.
The maximum required speed is 70 Mbps per channel.
I considered using a 5-port switch, or a hub with one master input and four slave outputs.

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What do you think?