Features: 1.3 in 1 Design: This memory thumb stick has USB 3.0, Type C and Micro USB interface, facilitate data transmission between smartphones and computers. 2.Large Capacity: This flash drive provides large capacity for the storage of photos, videos, music, PPT for speeches or projects, and back up public files. 3.High Speed: This thumb stick with USB 3.0 interface supports fast data transmission, suitable for Win and for OS X Laptop system. 4.Metal Case: This USB flash drive adopts metal case design, dustproof, waterproof and resistant to temperature and impact. 5.Plug and Play: This flash drive is plug and play, and it does not require software, saving your time and effort. specification:Item Type: Memory Thumb Stick Material: Metal Interface Type: USB 3.0, Type C and Micro USB PackageList:1 x Memory Thumb Stick NoteRegarding Available Capacity: The memory capacity of a usb flash drive may appear less on a PC due to different calculations. The larger the capacity, the greater the deviation. Storage industry area calculation method: 1GB=1000MB=1000x1000KB=1000x1000x1000B Operating system calculation method: 1GB=1024MB=1024x1024KB=1024x10024x1024B Therefore, a storage capacity of 1GB in the operating system is shown as: (1000^3)/(1024^3)0.93GB Please Note the Memo Regarding Storage Product Capacity: 4GB=Approx. 3.4GB to 3.8GB 8GB=Approx. 7.4GB to 7.6GB 16GB=Approx. 14.5GB to 15.5GB 32GB=Approx. 28GB to 30GB 64GB=Approx. 58GB to 60GB 128GB=Approx. 110GB to 120GB