i got an external hdd running...one of the 2 cable types....used my battery pack to power it and the n800 to read it...also worked with an ipod in disk mode used its own battery...thought i was on to something...my lifedrive only shows the internal 32 gig not the external 2 gig....i know this is like one of my earlier posts but well im very pleased with the otg.adapter all of the items can be used together on the road which i thought was very cool indeed