Welcome to our store! This U disk uses A+ grade high-speed chips, rigorously tested to ensure full usage capacity and storage stability. It utilizes a USB interface, connecting to your computer without the need for an extra power supply. Ultra-stable technology is compliant with the USB2.0 standard; supports hot plug, plug and play. The product supports Windows 98/Me/2000/XP / OS X 9.x / OS X / Linux2.4.x systems. This USB2.0 U disk can be used for backing up files, videos, etc., making it very practical in your daily life. Item Type: U Disk No driver required (for Windows98 and later) Applicable system: Windows 98/Me/2000/XP / OS X 9.x / OS X / Linux2.4.x Interface: USB2.0 Computer: For IBM PC/OS X PC or laptop, etc. Maximum write speed: 20mb/s Maximum read speed: 40mb/s Usage: Backup files, videos, etc. Operation Steps: Plug and play The displayed capacity differs from the nominal capacity because the calculation method is different. Manufacturer 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 Includes: 1 x U Disk Customers are our top priority. If you find any problems with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best customer service.