... flash disk appearance is novelty and fashion. Specificationsusb 3.0 1.Can make customer's design 2.Free data ... 4.Superior quality low priceOEM top sales promotional usb 3.0 1.Available Capacity: 64MB,128MB,256MB,512MB,1GB,2GB ... ,4GB,8GB,16GB,32GB;2.Interface: USB 3.0;3.Operating Systems: Windows Vista/XP/2000/ME/98 ... and above;4.Transfer Rate: High Speed USB 3.0;5.Data transfer speed: 35MB/s-60MB/s ...