The SanDisk USB Extreme Pro is a compact and fast USB flash drive. You can transfer a 4K movie or save a library of 1,000 photos within 25 seconds, thanks to a writing speed of 380MB/s and a reading speed of 420MB/s. The aluminum casing of your USB flash drive also protects your data against falls and impacts. All your files and media are protected against online theft through the SanDisk SecureAccess 128-bit AES encryption. You accidentally deleted your files? Retrieve them with the RescuePro Deluxe Software. If your computer doesn't support USB 3.1, the flash drive will simply work with USB 2.0 and 3.0.