What are the USB port for on the back of the C2300A?

The USB ports are currently not activated on the C2300A. When CenturyLink activates it, you will be able to use it for attaching a network storage device directly to the C2300A. Actiontec does not know when that will be. If you are looking for more information please contact CenturyLink Techincal support at 1-877-348-9005