KOOTION Fingerprint Encrypted 64 GB Flash Drive USB 3.0 Memory Stick, Black DOUBLE SECTOR - Fingerprint flash drive contains public and hidden sectors, 32GB capacity is divided into two, each sector with a capacity of 16GB each. HIGH-SPEED IDENTIFICATION - 360 fingerprint identification, the maximum 10 fingerprints can be added (including the admins.) With its own fingerprint management software, fingerprints can be added or deleted. COMPATIBILITY SYSTEM - Windows XPVista, Windows7, Windows 8, Windows 8.1, Windows 10, Linux, Mac. Note: our fingerprint management software does not support adding fingerprint on Mac OS, but you can use flash drive on Mac OS, please using fingerprint management software on Windows or other systems. ULTRA FAST TRANSFER RATE - Outstanding read/write speed is coupled with the latest USB 3.0 interface. It saves users precious time backing up to and from the hard drive when transferring mass data files. MANUFACTURER WARRANTY - One year limited warranty (artificial damage and improper use are not included), Free lifetime technical support, if you have any problem about our product, please email us via bolycorao@gmail.com, we will do our best to solve your problem.