Does a USB hub affect performance?

Posted by user1018733 on Super User See other posts from Super User or by user1018733
Published on 2012-06-15T20:22:50Z Indexed on 2012/06/15 21:19 UTC
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usb

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usb-2

I have two devices I want maximum throughput and latency with. (Midi drums and midi keyboard for example)

Would connecting both to the same USB port via a hub effectively limit the maximum data transfer rate to 1/2 to each of them?

I am assuming yes, but I didn't know if USB hubs had a handshaking and priority giving protocol available (e.g. let the device with the longer built up buffer of data communicate first)

Thanks

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