Features:  - 360° design, multiple compatible mobile phones.  - Zinc alloy fuselage, adopt nickel plating treatment, durable and scratch resistant.  - Type-c, Android, computer, Suitable for a variety of devices.  - Easily back up videos and photos, Instantly release your phones memory.  - Enjoy your favorite movies and music anytime, anywhere.    Specifications:  - Capacit: 32/64/128/256GB;  - Material: metal;  - Interface: type-c / micro USB / USB3.0;  - Colour: gray / black;  - Size: 60x15x19mm;  - Working current: ≤100mA;  - Waiting state current: ≤ 30MA;  - Reading Speed: 20-40MB / S;  - Writeing Speed: 18-30MB / S;  - Working voltage: 4.75V-5.25V;  - Storage temperature: -30℃-55℃;  - Working temperature: 0 ℃ + 70℃;    Package Includes:  1 x 3 in 1 USB Flash Drive;    About capacity:   The displayed capacity is not equal to the nominal capacity. Manufacturers of Flash (memory) or hard disk devices generally use 1000 as the base, that is, 1KB=1000 Bytes, 1MB=1000KB, 1GB=1000MB, and the operating system is based on 1024 to calculate the capacity. 1KB=1024Bytes, 1MB=1024KB, 1GB= 1024MB, the formatted capacity will be smaller than the nominal capacity. Under different operating systems, system files and firmware will also occupy a small amount of space, but the actual space used must be greater than or equal to 90% of the nominal capacity.    16GB=approximately 14GB-15GB;  32GB=approximately 28GB-30GB;  64GB=approximately 58GB-60GB;  128GB=approximately 113GB-124GB;    Note: This is calculation difference between manufacturer and our PC, just for you reference.