1) USB 1.0/ 1.1/ 2.0 2) hot plug and play 3) storage capacities: abailable 4) operating system: win98 SE, XP.ME.2000, LINUX 2.4 or later, Mac 4) one year for warranty, long time to retention 5) shockproof 6) Relative humidity under storage 5% -95% 7) housing material: metal 8) with laser