SanDisk 128GB Ultra Fit USB3.1 FD The simple way to add extra, high-speed storage to your device! The SanDisk Ultra Fitô USB 3.1 Flash Drive delivers performance that lets you move a full-length movie up to 15x faster than with standard USB 2.0 drives.1 Plus, thanks to its compact, streamlined design, you can plug it in and leave it in.