Amazon.com: SanDisk 128GB iXpand Go Flash Drive for iPhone, iPad, Computers & Laptops - 2-for-1 USB 3.0 Drive with Type A & Lightning Connectors (SDIX60N-128G-GN6NE) Bundle with 1 Everything But Stromboli Lanyard :
Quick fix for SanDisk iXpand! How to easily reformat your iXpand drive so you can use it again - YouTube