... flash drive usb 1.Capacity :from 256MB to 16GB l 2. Authentication FCC,CE,RHOS 3.Shipping: DHL,UPS,FEDEX, ... Capacity: 512MB,1GB,2GB,4GB,8GB,16GB,32GB;2.Interface: USB 2.0;3.Operating Systems: Windows Vista/XP/2000/ ... ME/98/95 and Mac OS 8.6 and above;4.Transfer Rate ... : High Speed USB 2.0;5.Data transfer speed: 15MB/s-21MB ...