Although they are great devices for lawyers, iPads (and other iDevices) have one notable shortcoming. They do not have expandable storage. Many Android and Windows devices have micro-SD card slots to expand storage by as much as 128 GB. With an iPad, whatever came on your device when you bought it is what you are stuck with - until now.
A new type of USB drive with a standard full-sized USB connector on one side and an Apple Lightning connector on the other side lets you expand storage and transfer files between your computer and your iPad (or iPhone).
The SanDisk iXpand series of USB flash drives comes in capacities of 16, 32, or 64 GB. Prices range from $60 to $120, making it significantly more expensive that ordinary USB flash drives. Whether the price is fair depends on how badly you need to expand your iPad's storage or need to move files between your iPad and other devices without a cable/software or Internet connection. Reviews, such as this one on CNET, have been positive