... , 4GB, 8GB, 16GB, 32GBOperating Temperature :-32°F to 140°F (0°C to 60°C)Storage Temperature-4°F to 185 ... -write speed:Read speed 18M/S,write speed:3.8M/S (USB2.0)Working voltage:5VWorking power:300mAConvenientSturdy loop supports most key ... . File preload, files can be non-erasable.3. Advertisement files Auto-play once USB was plugged into the computer.4. Website auto ...