... etc.)Capacity64M~32G (64MB, 128MB, 256MB, 512MB, 1GB, 2GB, 4GB, 8GB, 16G, 32G)Styleanimal, bracelet, card, lanyard, necklace, etc., many styles ... or Mac with a USB interface.Interface TypeUSB 2.0 & USB 3.0Transfer RateHi-Speed USB 2.0 Certified,Compatible USB 1.1Operating SystemWindows ... ’t drop the circuit protection device;4. Pull out USB in a correct way;5. Not to connect it with computer ...