Features: 1.3 in 1 Design: USB stick has type c port, micro usb port and usb 3.0 interface for easy data transfer between for Android smartphone and computer at high speed. 2.Large Storage Space: USB flash drive for backing up photos, recording videos, listening to music, providing power points for presentations or projects, backing up public files, etc. 3.Plug and Play: USB flash drives are plug and play, no need to install any software, just connect it with the USB port on your computer or other devices with USB port and it will work properly. 4.Waterproof: Metal casing defend your pen drive from damage, providing protection from dust, water, temperature and shock. 5.Lightweight and Portable: USB flash drives are compatible with for Windows, for OS x and other operating systems, mini design, you can put the USB flash drive in your pocket or any small space and enjoy data transfer and sharing anytime, anywhere. specification:Item Type: U Disk Material: Metal Interface: USB3.0, Type C, Micro USB PackageList:1 x UDisk NoteAbout USB capacity. Due to different calculation methods, the memory capacity of a usb flash drive may show less on a PC. 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, the storage capacity of 1GB in the operating system is shown as: (1000^3)/(1024^3) 0.93GB 4GB=approx. 3.6GB to 3.8GB 8GB=approx. 7.4GB to 7.6GB 16GB=approx. 14GB to 15GB 32GB=approx. 28GB to 30GB 64GB=approx. 58GB to 60GB 128GB=approx. 110GB to 120GB