... ,UPS,FEDEX,EMS... USB 2.0 USB Flash Drive 1.Capacity :from 256MB to 16GB l 2. Authentication FCC,CE,RHOS ... ,FEDEX,EMS...Specification:1.Available Capacity: 512MB,1GB,2GB,4GB,8GB,16GB,32GB;2.Interface: USB 2.0;3.Operating Systems ... and Mac OS 8.6 and above;4.Transfer Rate: High Speed USB 2.0;5.Data transfer speed: 15MB ... buyers'need;15.Warranty: 5 years warranty. guitar 1/2/4/8/16/32G usb flash drive usb