... , 4G,8G 2) Both USB 1.1 and 2.0 available USB wristband(1) Material :100% silicon rubber ,harmless for body ,Green material ... ) Capacity: 128MB,256, 512MB, 1G, 2G, 4G,8GB for USB driver bracelet(5) Both USB 1.1 and 2.0 available(6) Driverless ... installation in Windows 98, 2000, XP, Vista and Mac. OS 9.0 USB ...