On Sat, 16 Aug 2014, Ed Vance wrote to mark lewis:

 EV> The LED on the USB cable went Off as I expected it to do.

 EV> The only other thing I thought of when I was turning the box Off
 EV> (Kibernating) was the USB cable gets its power from either the 12
 EV> volt or the 5 volt supply, Maybe the other power supply still has
 EV> some charge to it that is doing something while I turn the UPS Off.

yes, that is also a possibility... many usb hubs that i'm aware of do not
use diodes on the power lines so the power from the hub also flows back
into the computer... a friend's dell system had problems due to a usb hub
like this... we always had to unplug the usb hub before trying to turn the
machine on or reboot it for any reason... it was quite aggrivating...

)\/(ark