Most tablets and smartphones do no have a Flash card reader. The Kingston Digital MobileLite Wireless Flash Reader is a compact device you can pick up to connect SD cards and Flash drives to your iOS or Android device wirelessly. You can share photos, files, and movies with up to 3 users.
This Wireless Flash Reader can serve as a backup battery for your tablet. You get to copy and transfer files between USB Flash drives and SD cards or copy files locally to your mobile device. This compact gizmo costs $94.