Item Type: U Disk System: For WinXP/7/8/10/Vista/Linux2.4/OS X 9.0 and above, 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 = approximately 3.4GB-3.8GB 8GB= approximately 7.4GB-7.6GB 16GB= approximately 14.5GB-15.5GB 32GB= approximately 28GB-30GB 64GB= approximately 58GB-60GB 128GB= approximately 119GB-124GB 256GB= approximately 249GB-250GB 512GB= approximately 498GB-500GB Size: Approx. 39 x 12.1 x 4.6mm / 1.5 x 0.5 x 0.2in 39mm / 1.5in 12.1mm / 0.5in 4.6mm / 0.2in 1、This U disk has a USB interface, no driver, plug and play, very convenient. 2、The compact style and stylish shape are an unforgettable gift for your beloved, friends and even customers. 3、Small size, easy to carry and store, convenient to use and with good performance. 4、This U disk support for WinXP/7/8/10/Vista/Linux2.4/OS X 9.0 and above, etc. 5、Strict quality control and quality assurance, high safety factor, can be used with peace of mind. 1 x U Disk 1 x Clip