1、No need of driver, plug and play, compatible with most USB devices on the market, such as mobile phones/computers, etc. 2、USB2.0 interface, the maximum writing speed is 4‑10mb/s, the maximum reading speed is 10‑20mb/s. 3、For Android adapter, it can expand the phone memory, and can directly read and copy files, photos, videos, etc. 4、Rose gold color, cartoon appearance, delicate and cute. Premium metal material, sturdy and durable. 5、Small size, light weight, with a metal keychain, convenient to carry around and not easy to lose. Item Type: U Disk Material: Metal Color: Rose Gold No driver (above for Windows98), support for Windows 98/for Me/2000/XP, for 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 4-10mb/s, the maximum reading speed is 10-20mb/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 1 x U Disk 1 x Adapter for Android 1 x Hanging Ring