Features: 1.USB2.0 interface, superior chip, provides high?speed and more stable transmission. 2.Features a maximum write speed of 8?13mb/s and a maximum read speed of 13?25mb/s. 3.No need of driver, it supports for Windows 98/Me/2000/XP, for OS 9.x/OS X and for Linux 2.4.x. 4.Plug and play, simple to operate. Can be used to back up files and videos, etc., practical to use. 5.Premium zinc alloy shell, rugged, waterproof and durable. Cute appearance, can be used as a gift for others. specification:Item Type: U Disk Material: Zinc Alloy Color: Dark Gray No driver (above for Windows98), support for Windows 98/for Me/2000/XP, for OS X OS 9.x/OS X and for Linux2.4.x; Interface: USB2.0 Computer: for IBM PC, for OS X PC or laptop, etc.; Speed: The maximum writing speed is 8-13mb/s, the maximum reading speed is 13-25mb/s Application: Backup files, videos, etc. How to Use: Plug and play The display capacity is different from the nominal capacity, because the calculation method is different, the manufacturer's standard: 1GB / 1000MB / 1MB = 1000KB Regarding Usable Capacity: Please note the memorandum 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 PackageList: 1 x U Disk 1 x Microusb Adapter 1 x Buckle