... 4GB, 8GB, 16GB, 32GB,2MaterialMetal plastic3ColorsYellow, Brown, any other colors depend on ur prefer,4Operating SystemSWINDOWS 98SE/ME/2000/XPLinux2 ... UPS, FedEx, EMS Details Features Easy to carry,No pollution to Environment Antimagnetic, antiknock, moisture resistance, high ... temperature resistance, Hit resistance . Operating Temperature 32F to 140F ( 0C- 60C) Storage Tnemperature(-4F- 185F) ...