SpecificationStorage Capacity32/64/128/256/512MB 1/2/4/8/16/32GBUSB InterfaceHigh-Speed USB 2.0 compliant, (backwards compatible with USB 1.1)Guarantee3years warrantySupport OSWin 2000 / ME / XP /VISTA/ 7, Linux 2.4, Mac Os9.1/XPlug-and-playno external power supply required, USB bus-poweredAll drives are made with high quality MemoryIntel/Samsung/Toshiba/Hynix/Micron memoryReading speed(USB2.0) ...