1、Adopts USB interface and connects to computer through USB interface without additional power supply. 2、Ultra‑stable technology, in line with USB2.0 standard, supports hot‑swappable, plug‑and‑play. 3、Electronic storage medium, no mechanical parts, anti‑vibration and moisture‑proof, anti‑electromagnetic interference. 4、There are 32GB, 64GB, 128GB 3 kinds of storage capacity to choose from, you can choose the specifications you need. 5、No driver required (for Windows 98 and above), support for Windows 98/Me/2000/XP/OS X 9.x/OS X/Linux2.4.x. Item Type: U Disk No driver required (for Windows 98 and above), support for 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. Speed: Maximum write speed 20mb/s, maximum read speed 40mb/s Application: Backup files, videos, etc. How To Use: Plug and Play 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 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 Lanyard