Environment Temp: -40⁰ C - +70 ⁰ C Storage Temp: -50 ⁰ C - +80 ⁰ C USB Service Voltage 4.5V - 5.5V Storage Lifetime : More than 10 years Operating System : Win98/ME/2000/XP/Vista/Win7/Win8/Mac OS9.X/Linux2.4 or above USB connection, support Hot Plug & Play Easy to read and read in high speed, no need drive/power supply onlu plug in .