Feature: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 DiskMaterial: PVCSupport for Windows98 Above: For Windows 98/Me/2000/XP, for OS X 9.x, for OS X and for Linux2.4.xInterface: USB2.0Computer: IBM PC, for PC or laptop, etc.Speed: Maximum Write Speed 10-20MB/s, Maximum Read Speed 4-10MB/sApplications: Backup Files, Videos, Etc.Displayed Capacity and Nominal Capacity Are Different Because the Calculation Method is DifferentManufacturer's Standard: 1GB/1000MB/1MB = 1000KBRegarding The Available Capacity: Please Note the Memo About the Capacity of Storage Products.4GB = Approx. 3.4GB to 3.8GB8GB = Approx. 7.4GB to 7.6GB16GB = Approx. 14.5GB to 15.5GB32GB = Approx. 28GB to 30GB64GB= Approx. 58GB to 60GB128GB= Approx. 119GB to 124GB256GB= Approx. 249GB to 250GB512GB= Approx. 498GB to 500GB.Package List:1 xUSB2.0 U Disk1 x Hanging Chains