... :128MB,256MB, 512MB, 1GB, 2GB, 4GB, 8GB,16GB Interface: USB 2.0 Speed: Read=10MB/Sec.; Write=7MB/Sec. Logo ... Imprint Silicone credit card shape usb product name:bracelet usb,wristband usb,usb wristbandMaterial:silicone Size(L*W*H):210*18 ... years warrantyTransfer Rate :Hi-Speed USB 2.0 Certified, Compatible USB 1.1Compatibility :PC,Notebook,Macintosh with usb portOperating System :Windows 7/ ...