【FEATURE】Casing Materials: Aluminum and PlasticColors: Gradient Color Case + Silver CapSize: 57*19*11 mm(Folded)Weight: 9 Grams/ UnitChip: Grade A, Original Brand Flash Memory ChipSpeed: Write Speed:6MB/S-8MB/S, Read Speed:15MB/S-18MB/SInterface: USB 2.0, Backwards Compatible to USB 1.1Durability: 50,000 Times Read & WriteOperating System: Windows XP/ 2000/ Vista/ 7/ 8/ 8.1/ 10/ NT Linus/ MAC OS 10.4 and HigherOperating Temperatures: 32º F to 140º F (0º C to 60º C)Storage Temperatures: -4º F to 185º F (-20º C to 85º C)【NOTE】1. The actual available capacity of the small usb flash memory drive is a little smaller than we listed, because of different calculations between the computer and manufacturer:Computer: 1MB=1024KB, 1GB=1024MBManufacturer: 1MB=1000KB, 1GB=1000MBAnd a reserved space is drawn for the stability of the main control and the life of the flash memory.Actual capacity of128MB approximately 106-121MB.256MB: approximately 240-250MB.512MB approximately 480-505MB.1GB approximately 950-970MB.2GB approximately 1.7-1.8GB.4GB approximately 3.5-3.7GB.8GB approximately 7.3-7.6GB.16GB approximately 14GB-15GB.32GB approximately 29GB-30GB.2. Do not pull out the USB flash drive while reading or saving data. The interruption may damage the data or damage the USB flash drive.【TIPS】 1. Don't operate the files in the USB flash directly. It would better first copy the files to computer to operate and then copy back to USB flash after operation.2. To extend USB flash's life span, it would better to plug the USB flash drive down after operation asap.3. Before removing the USB, please delete the symbol on the bottom right of the PC screen to avoid missing files in the dish.4. Please do not format the USB frequently for it may damage the USB flash.