... flash drive usb 1.Capacity :from 256MB to 16GB l 2. Authentication FCC,CE,RHOS 3.Shipping: DHL,UPS,FEDEX ... Flash Drive 1.Capacity :from 256MB to 16GB l 2. Authentication FCC,CE,RHOS 3.Shipping: DHL,UPS, ... Capacity: 512MB,1GB,2GB,4GB,8GB,16GB,32GB;2.Interface: USB 2.0;3.Operating Systems: Windows Vista/XP/2000 ... and above;4.Transfer Rate: High Speed USB 2.0;5.Data transfer speed: 15MB/s-21MB/s for read, ...