1、USB Interface: U disk adopts USB interface, which is connected to the computer without additional power supply. 2、Stable Technology: Cute flash drives adopts ultra stable technology, conforms to USB2.0 standard, and can be used to back up files, videos, etc. 3、Plug and Play: U disk flash drive supports hot plug, no driver required, plug and play, and it is very convenient to use. 4、Support System: USB flash drives supports for Windows 98/ME/2000/XP,for OS X 9.x,for OS X and for Linux2.4.x systems. 5、Anti Interference: USB flash drives adopts electronic storage medium, no mechanical parts, anti seismic and anti electromagnetic interference. Item Type: USB Flash Drives Material: ABS System Support:For Windows 98/Me/2000/XP,for OS X 9.x,for OS X and for Linux2.4.x;Are Supported Without Drivers (above for Windows 98); Interface: USB2.0 Computers:For IBM PC,for IOS PC or Laptop, Etc. Speed: Maximum Writing Speed is 10-20(mb/s) and the Maximum Reading Speed is 4-10(mb/s) Application: Backup Files, Videos, Etc. Manufacturer's Standard: 1GB/1000MB/1MB = 1000KB(Display Capacity and Nominal Capacity Are Different Because of Different Calculation Methods) About Available Capacity: Please Note the Memo About Storage Product Capacity: 4GB = Approx. 3.4GB-3.8GB 8GB= Approx. 7.4GB-7.6GB 16GB= Approx. 14.5GB-15.5GB 32GB= Approx. 28GB-30GB 64GB= Approx. 58GB-60GB 128GB = Approx. 119GB-124GB 256GB = Approx. 249GB-250GB 512GB = Approx. 498GB-500GB 1 x USB Flash Drives