Product discription:Storage capacity: 1GB/2GB/4GB/8GB/16GB/32GBInterface: USB 2.0Environment Temperature: -40C - +70CStorage Temperature: -50C - +80CUSB Service Voltage: 4.5V-5.5VStorage Lifetime: More than 10 yearsUse A-class chip， can be erased repeatedly for 100，0000 timesOperating System: Win98/ME/2000/XP/ Vista/win7 /win8， Mac OS 9.X/Linux2.4 or aboveUSB connection:support Hot plug & Play.Easy to read and read in high speed ，No need drive/power supply only plug in.Package:1*USB Flash Disk