4GB USB 2.0 Drive, Plug & Play functionality in Windows® XP, 2000, ME, Linux 2.4 and later, Mac OS 9, X and later, Drivers on CD for Windows® 98, Lanyard, USB cable and driver CD included, Supports sustained read spead of 19MB/sec, Supports sustained write speed of 13MB/sec, Security features: Partition password protect utility, Ten year warranty