Transfer A Full-Length 4K Movie In Less Than 40 Seconds - With write speeds of up to 150MB/s, the SanDisk Extreme? Go USB 3.1 Flash Drive lets you quickly copy and go. Up to 35X faster than standard USB 2.0 drives7, so you can transfer a full-length 4K movie to the drive in less than 40 seconds1. The design keeps the retractable connector protected when not in use, and the included SanDisk Secure - Accesssoftware provides password protection2 of your private files while leaving the rest of the drive available for sharing. PRODUCT FEATURES HIgh-speed performance of up to 200MB/s read and up to 150MB/s write. Transfer files to drive up to 35X faster than standard USB 2.0 Drives, so you can quickly transfer and GO USB 3.1/USB 3.0 enabled (backward-compatible with USB 2.0) SanDisk Secure - Access software included for 128-bit AES file encryption and password protection. PRODUCT DETAILS SanDisk Secure - Access software protects your privacy - Create a private folder on your drive with SanDisk Secure - Access software. This 128-bit AES encryption software makes it easy to password-protect critical files2. Drag and drop files into the vault, and they’ll be protected. Easy file recovery with Rescue - PRO Deluxe software - The drive comes with a Rescue - PRO Deluxe data recovery software download offer6. This software makes it easy to recover files that have been accidentally deleted (download required).