A. The iPad doesn’t have a USB port so you may think you can’t use a USB stick but actually you can.
First you get an Apple USB 3.0 Camera Connection Kit for Lightning, which gives you USB 3.0 A type port for all Lightning-port iPads and iPhones. This is available directly from Apple or an Apple dealer
The USB stick will plug directly into the USB port on the adapter. There is an additional Lightning port for powering the iPad.
If you have IOS 13, it directly supports external storage in IOS
How to use external storage on iPad and iPhone with iOS 13
If you have an earlier IOS version, selected apps support external storage from within the apps but you don’t have direct access to the external storage from IOS.
If your USB device draws more than the average amout of power from the USB port, and it complains of insufficient device power, then you may need to add a USB hub that has an AC power adapter between the adapter and the USB device.
There are a few USB memory sticks that have a built in Lightning plug as well as a USB Type A plug.
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