USB hubs with lots of ports (7 or 10) often consist of chained 4-port hubs. I wonder how good the performance of the various ports of those hubs is.
Specifically I'm thinking about mass storage devices (i.e. high throughput+latency, 480M or 5G, enough to potentially saturate the bus) and MIDI/HID devices (i.e. low latency+throughput, 12M or 480M) both connected to the same hub.
I assume 12M performance could be better if each 12M device is plugged into a different hub and thus gets its own TT? And everything else is probably worse, but how much?