You have to use the bulit in Wifi hotspot that is part of that drive to transfer files back and forth.
You don't use the USB connection.
Download the app for this drive.
You turn on the Wifi signal on the drive with the side button.
This drive generates its own local WiFi hotspot.
That is why you need to keep the drive charged up over a USB charger.
In Settings App, Wifi, the drive should show up as a Wifi spurce, select the flash drive to connect up to.
I am not sure what other app or procedures you need to use to get your PPP to the Sandisk app to transfer it to the flash drive over WiFi.
Maybe the SanDisk drive or app appears in the PP app under the share feature (either the app says share or uses the symbol of a square with an arrow through it.)
I have only used this for videos, pics and documents/PDFs.
Not sure about how to get an iPad created PP presentation to this drive via WiFi.
The needs to be able to have the Sandisk drive or app listed in the share or share icon feature to be able to make the back and forth WiFi transfer.
Good Luck!
