1,This flash drive memory adopt USB interface, no drive required, plug and play 2,The product have small size and easy to carry, you can easily carry wherever you go 3,Compact style and stylish shape, whihc is an unforgettable gift for your beloved, friends and even customers 4,Applicable for Winxp or 7 or 8 or 10 or Vista or Linux4 or OS X 9.0 and above system, etc. 5,The USB0 U disk can be used for backup files, videos, etc., very practical and useful Item Type: U DiskApplicable system for Winxp or 7 or 8 or 10 or Vista or Linux 2.4 or OS X 9.0 and above, etc.Interface: USB 2.0Maximum Writing Speed: 25mb or sMaximum Reading Speed: 13mb or sApplication: Backup files, videos, etc.The displayed capacity is different from the nominal capacity because the calculation method is differentManufacturer Standard: 1GB or 1000MB or 1MB = 1000KBRegarding Usable Capacity: Please Note the Memorandum Regarding Storage Product Capacity: 4GB=approximately 3.4GB- 3.8GB8GB=approximately 7.4GB- 7.6GB16GB=approximately 14.5GB- 15.5GB32GB=approximately 28GB-30GB64GB=approximately 58GB-60GB128GB=approximately 119GB-124GB256GB=approximately 249GB-250GB512GB=approximately 498GB-500GB Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.