Features: 1.Advanced thumb drive, class A chip U disk provides stable and reliable performance. Our USB memory sticks have been tested twice before shipment. 2.Best gift for your family, friends, students, teachers, neighbors, and colleagues. You can store some pictures, music, movies and beautiful memories in it to give them a big surprise. 3.Extensive compatibility, the memory stick is suitable for all USB 2.0 ports. Compatible with all devices with USB?A port desktops, laptops, tablets, TVs, speakers. 4.Portable and waterproof, with high?quality metal casing for durability with key ring to prevent loss. 5.Reliable and safe storage for photos, videos, music and other files, and available in capacities from 16GB to 128GB. specification:Item Type: USB 2.0 Memory Stick Material: Metal Compatible System: For Windows 7/8/10 / Vista / XP / Unix / 2000 / ME / NT / Linux 2.6 / OS X, Etc. Scope of Application: Data Storage, Transmission and Sharing of Music, Photos, Movies, Designs, Manuals, Handouts, Homework, Etc. PackageList:1 x Flash Drive NoteManufacturer standard: 1GB / 1000MB / 1MB = 1000KB Regarding usable capacity: Please note the memorandum about storage product capacity: 16GB=Approx. 14.5GB?15.5GB 32GB=Approx. 28GB?30GB 64GB=Approx. 58GB?60GB 128GB=Approx. 119GB?124GB