The simple way to add extra, high-speed storage to your device. The SanDisk Ultra Fit USB 3.1 Flash Drive delivers performance that allows you to 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. 1GB=1,000,000,000 bytes. Actual user storage less (1) Write to drive up to 15X faster than standard USB 2.0 drives (4MB/s); up to 130MB/s read speed. USB 3.1 Gen 1 or USB 3.0 port required. Based on internal testing; performance may be lower depending on host device. 1MB=1,000,000 bytes (2)Based on 1.2GB MPEG-4 video transfer with USB 3.1 Gen 1 or USB 3.0 host device. Results may vary based on host device, file attributes and other factors. (3) Password protection uses 128-bit AES encryption and is supported by Windows 7, Windows 8, Windows 10 and macOS v10.9+ (Software download required for Mac, visit the official SanDisk website for Secure Access details) (4)Registration required; terms and conditions apply. (5) Visit the official SanDisk website for warranty details.Five-year limited manufacturer warranty [Visit the official SanDisk website for warranty details]. Keep private files private with included SanDisk Secure Access software (3) [(3) Password protection uses 128-bit AES encryption and is supported by Windows 7, Windows 8, Windows 10 and macOS v10.9+ (Software download required for Mac, visit the official SanDisk website for Secure Access details)]. Move a full-length movie to the drive in less than 30 seconds (2) [(2) Based on 1.2GB MPEG-4 video transfer with USB 3.1 Gen 1 or USB 3.0 host device; Results may vary based on host device, file attributes and other factors]. Write up to 15X faster than standard USB 2.0 drives (1). Read speeds up to 130MB/s (1) [(1) Write to drive up to 15X faster than standard USB 2.0 drives (4MB/s); USB 3.1 Gen 1 or USB 3.0 port required. Based on internal testing; performance may be lower depending on host device; 1MB=1,000,000 bytes]. Simple, fast way to add up to 128GB of storage to your device [1GB=1,000,000,000 bytes - Actual user storage less]. A compact, plug-and-stay, high-speed USB 3.1 flash drive that’s ideal for adding more storage to laptops, game consoles, in-car audio and more.