2012-12-16

Lenovo B570 (laptop)
Win7 HP, x64 SP1

I am not experiencing any problems. I am just trying to figure out how things work. I am exploring the relationships of the Host Controller, Root Hub, and USB Ports. Any helpful insight would be appreciated.

This computer has four USB ports. I plugged the following devices into the USB ports:

1. Logitech Unifying device for wireless mouse/keyboard...

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