Features: 1.USB Interface: Portable U disk adopts USB interface and connects with computer through USB interface without extra power supply. 2.Plug and Play: Cartoon USB stick adopts ultra stable technology, complies with USB2.0 standard, supports hot swappable, plug and play. 3.Support System: USB stick is made of ABS material, wear resistant and durable, compatible with for Windows 98/Me/2000/XP, for OS X 9.x, for OS X and for Linux2.4.x. 4.Shock Resistant: Electronic storage media, no mechanical parts, shock resistant, anti electromagnetic interference. 5.Large Storage Space: USB flash drive can be used for backing up photos, recording videos, listening to music, providing power points for presentations or projects, backing up public files, movies, music, pictures, software, data, etc. specification:Item Type: USB2.0 U Disk Material: PVC Support for Windows98 Above: For Windows 98/Me/2000/XP, for OS X 9.x, for OS X and for Linux2.4.x Interface: USB2.0 Computer: IBM PC, for PC or laptop, etc. Speed: Maximum Write Speed 10-20MB/s, Maximum Read Speed 4-10MB/s Applications: Backup Files, Videos, Etc. Displayed Capacity and Nominal Capacity Are Different Because the Calculation Method is Different Manufacturer's Standard: 1GB/1000MB/1MB = 1000KB Regarding The Available Capacity: Please Note the Memo About the Capacity of Storage Products. 4GB = Approx. 3.4GB to 3.8GB 8GB = Approx. 7.4GB to 7.6GB 16GB = Approx. 14.5GB to 15.5GB 32GB = Approx. 28GB to 30GB 64GB= Approx. 58GB to 60GB 128GB= Approx. 119GB to 124GB 256GB= Approx. 249GB to 250GB 512GB= Approx. 498GB to 500GB PackageList:1 x USB2.0UDisk 1 xHanging Chains