Products Status: Stock Package: Yes Interface Type: USB 3.0 Encryption: No Product Type: Flash Disk Product detail: 1)Memory sizes available: 16g 32g 64GB 2)Compliant USB specification:3.0 3) High speed,at least 10 years of data retention 4)Plug and play support:Win 98SE/2000/ME/XP/ViSTA 5)Plug-and-play,no external power supply,USB bus-powered 6)All drives are made with high quality SUMSUNG/HYNIX/MICRON memory 7)Fast reading and writing speed(USB3.0) 8)Writing speed(USB3.0):25-45Mbps(Computer configuration dependent) 9)Supports multi-partition and password access Note: 1. Flash memory vendors use decimal arithmetic '1MB = 1000KB, 1G = 1000 MB' calculate; 2. But operating system use binary arithmetic '1MB = 1024KB, 1GB = 1024MB' calculate; 3. So this is the difference between display capacity and nominal capacity... 2G is close to 1.82G; 4G is close to 3.6G; 8G is close 7.2G; 16G is close 14.4G; 32G is close 28.8G; 64G is close 56.8G; Why the USB flash drive real capacity is not correct capacity? Flash memory vendors are using decimal arithmetic:1MB = 1000KB,1G = 1000MB calculated, the operating system using binary arithmetic:1MB = 1024KB,1GB = 1024MB; so there are some differences between display capacity and nominal capacity of flash memory product 4G is about 3.6G; 8G is about 7.2G ; 16G is about 14.4G ; 32G is about 28.8G; 64G is about 55.6G;