Leef Ice is a work of art. Leef Ice USB Drive uses a methacrylic resin with the highest level of light transparency of all acrylics. The design of Leef Ice creates a unique optical experience when the USB device is functioning, as light travels through Leef Ice, it is invisible from certain viewing angles and as the viewing angle changes the light becomes brightly colored. Leef Ice is made for who appreciate design and style SPECIFICATIONS Capacities: 8GB, 16GB, 32GB, 64GB USB: USB 2.0 HIgh-Speed Colors: White with White Band 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