Product details: Capacity: 32GB Interface: compatible with USB 3.0 and USB 2.0 (backward compatible with USB 1.1) Compatibility: The memory stick is compatible with all common operating systems such as Windows 7/8/10 / 2000 / XP / Vista / ME / NT, Linux and Mac OS. Tips: The USB stick capacity of the factories is calculated according to 1 MB = 1000 KB, 1 G = 1000. MB and the operating system uses a binary algorithm, that is 1 MB = 1024 KB, 1 G = 1024 MB. The display capacity of the USB stick is about 90% of the nominal capacity, this is a normal.phenomenon and does not affect your use. The USB stick capacity 32GB, 64CB, 128GB ect. The actual usage is around 28.8 GB, 57.6 GB,115.2 GB and so on. About the read / write speed of the product: Since the computer configuration, the USB stick, the file size and the number of files copied at the same time directly affect The actual speed, the USB stick is different when it is actually used. the product includes: Flash Drive 32 GB 3.0 * 1 Pack