Material: stainless steel Product size: 45x17x7.5mm Weight: 20.2g USB 2.0 version;Lifetime Warranty, Samsung Chipset Capacity range: 2 to 16GB Maximum write speed: 15Mbps Maximum reading speed: 30Mbps Power and data accessing indicators Operating temperature: -20 to +60° Storage humidity: 20 to 80% RH OS supported: Microsoft Windows 98, ME, 2000, XP, Vista,7, Macintosh OS 9.0 or higher, and Linux Kernel 2.4.1 or higher