The Super-fast solid state performance in a USB 3.1 flash drive with Read speeds of up to 420MB/s and Write speeds of up to 380MB/s means you can transfer a full-length 4K movie in less than 15 seconds or 1000 photos in less than 25 seconds! Compatible with your USB ports The SanDisk Extreme PRO USB 3.1 Solid State Flash Drive is backwards-compatible so you can plug into any USB 2.0 or 3.0 port. SanDisk SecureAccess Software protects your privacy Create a private folder on your drive with SanDisk SecureAccess software. This 128-bit AES encryption software makes it easy to password-protect critical files. Drag and drop files into the vault, and they will be protected. The capacity to do more Store large amounts of data with enough room for your movie files, photos and other files thanks to capacities up to 256 GB. Built to last The SanDisk Extreme PRO USB 3.1 Solid State Flash Drive features a sophisticated design with durable aluminium metal casing to keep your precious files safe.