Tech Specifications: Chip: Grade A, original brand. Interface Type: USB 3.0. Writing speed: 40mb/s-45mb/s Reading speed: 10mb/s-15mb/s Compatibility: Desk PC, Laptop, Mac, Tablet, Speaker with USB port. Operating System : Windows 7/Vista/XP/2000/ME/NT, Linux and Mac OS. Operating Temperatures : 32o F to 140o F (0o C to 60o C). Storage Temperatures: -4o F to 185o F (-20o C to 85o C). Package Includes: 1 x usb flash drives