Item Type: Flash Memory Material: Silicone Appearance: Tank-Shaped Hardware Requirements: PC, Laptop, For OS X with USB Connection.1We provide 4 different types of capacities for you to choose from, you can pick the one that satisfy your need.The novel USB can easily distinguish traditional USB flash drives, making your working more enjoyable. 2USB2.0 ensures high reading and writing speed. Plug and play, no driver installation required. Mobile hard disk is used for fast data transfer, supports mobile phone OTG. No external power supply required. 3Made of silicone material, the flash drive is durable, which can be used for a long time. With a cute cartoon tank, it is lovely and easy to carry, it is also a practical gift for friends or family. 4With the function of shockproof, the hard drive adopts anti?electromagnetic storage. It also supports different types of operating systems, hot?swappable playback. 5USB flash drives are suitable for digital data storage, transmission and sharing, and are suitable for data storage such as music, photos, movies, designs, manuals, and publicity.Regarding the capacity standard: there is a difference between the manufacturer and the PC. The PC's 1GB=10.7374182.4 billion bytes, the market standard is 1GB=1 billion bytes. The actual capacity of the USB disk: 16GB=Approx. 14.5GB?15.5GB 32GB=Approx. 28GB?30GB 64GB=Approx. 58GB?60GB 128GB=Approx. 119GB?124GB1 x FlashMemory