1、Using A+ grade high-speed chips, through multiple rigorous tests, fully guarantee the use capacity and storage stability of the U disk. 2、The size and thickness of the bank card is only 2MM and the same size as the bank card, which is convenient to carry and not easy to lose. 3、Ultra‑stable technology, in line with the USB0 standard, supports hot swap, plug and play. 4、The product has been tested, even if it is dropped into water or taken out in rain, wipe it dry and it can be used normally. 5、No driver required (for Windows98 or above), support for Windows 98/Me/2000/XP/OS X 9.x/OS X /Linuxx. 1 x U Disk Item Type: Card U DiskInterface: USB 2.0Computer: For IBM PC/OS XPC or laptop, etc.;Speed: Maximum Write Speed: 6mb/sMaximum Reading Speed: 15mb/sApplication: Backup files, videos, etc.No driver required (for Windows 98 and above), support for Windows 98/Me/2000/XP/OS X 9.x/OS X/Linux 2. 4.x;How to Use: Plug and PlayThe displayed capacity is different from the nominal capacity because the calculation method is differentManufacturer Standard: 1GB / 1000MB / 1MB = 1000KBRegarding Usable Capacity: Please Note The Memorandum Regarding Storage Product Capacity: 4GB = about 3.4GB- 3.8GB8GB=approximately 7.4GB- 7.6GB16GB=approximately 14.5GB- 15.5GB32GB=about 28GB-30GB64GB=approximately 58GB-60GB128GB=approximately 119GB-124GB256GB=approximately 249GB-250GB512GB=approximately 498GB-500GB