Remarkably innovative for something so small, Leef Fuse USB Drive integrates special magnets into the design to make the device more difficult to lose. The Leef design team found a magnetic metal alloy that does not harm flash memory and developed the first ever USB drive with magnetic properties. (WARNING: playing with the magnetic connections in Leef Fuse can become addictive and result in work time and greater relaxation). SPECIFICATIONS Capacities: 8GB, 16GB, 32GB, 64GB Color(s): Dark Grey/White, Dark Grey/Blue, Dark Grey/Black USB 2.0: USB 2.0 High-Speed Operating Temperature: 0°C - 60°C Storage Temperature: -20°C - 85°C System Requirements: Windows® 8, Windows® 7, Windows® XP (SP3), Windows Vista® (SP1, SP2), Windows 2000®, Apple® Mac OS X or later Regulatory Compliance: FCC, CE Warranty: 10-year limited warranty