Hello Jeff2k, thanks for joining the Intel Community.
I was able to test this behavior and the reason why the mouse disappears from the system is because it is connected to a USB 3.0 port.
The generic USB Hub is going to show the devices connected to a USB 2.0 ports. You can test this by connecting the mouse to a USB 2.0 port, click on refresh and the mouse will appears under description.
JH Moon, thanks for the information.
Would you please let me know if you are able to use the mouse and keyboard on your system even thought they are disappearing from the power required description?
Yes. I can use the USB keyboard and USB mouse. It works well.