hi there,
so whilst you might have a good network with loads of bandwidth, this doesn't mean that your USB redirection can use all of it. Unfortunately due to the way the USB standard works, it is synchronous - meaning that the computer sends a message to the device, the device replies, and then the computer says thanks. Then the next communication happens. Now, if this is a short wire then it can do this incredibly quickly - however for USB redirection the USB packets have to be sent over the network and whatever latency exists will significantly reduce the thruput you can achieve. More-so - because the packet sizes of USB are so small, you will find that it is sending small packets infrequently thus compounding the problem further.
So, I do believe that the bandwidth will be an issue. I also suspect (but haven't tried) that remoting these sorts of devices won't work either. Do try it, and post back your findings, but I don't expect it will work.
If it does work then before you roll out across many folks, then do please try varying the network conditions and simulate a real world network eg with 5ms latency and consider if any users will be connecting from home across a wifi and wan link and simulate that accordingly. as I believe this would definately lead to issues with the solution.
cheers
peterB