Features: 1.Memory stick come with USB2.0 interface, no drive required, plug and play, very convenient 2.Applicable devices of computers, vehicles for Bluetooth speakers, TVs and other devices that support USB expansion 3.Small size U disk is easy to carry, you can easily carry the product wherever you go 4.This mini portable waterproof memory stick can be used to backup files, videos, etc. 5.There are 3 kinds of memory capacities available to meet your different needs specification:Item Type: U Disk Applicable Software: For Window/XP/Vista/7/8/10/OS X/Linux, etc. Interface: USB2.0 Speed: 12MB/S Application: Backup files, videos, etc. The displayed capacity is different from the nominal capacity because the calculation method is different Manufacturer Standard: 1GB / 1000MB / 1MB = 1000KB Regarding Usable Capacity: Please Note the Memo Regarding Storage Product Capacity: 4GB = about 3.4GB-3.8GB 8GB = about 7.4GB-7.6GB 16GB = about 14.5GB-15.5GB 32GB = about 28GB-30GB 64GB = about 58GB-60GB 128GB = about 119GB-124GB 256GB = about 249GB-250GB 512GB = about 498GB-500GB Size: Approx. 40.3 x 12.3 x 10.8mm / 1.6 x 0.5 x 0.4in PackageList:1 x U Disk