WT-UPI3.0-32GB 32GB USB 3.0 Flash Drive (up to 100MB/s), High Speed with rotating stainless shell design Read :100Mb/s Write:30Mb/s Warranty time for 1 year upport OS:Windows Me/2000/XP/Vista/7/8 Linux Kernel2.4 /MAC OS 9.x Interface :USB1.1/2.0/3.0 / Plug and Play 6cmX0.6cmX2.2cm LxWxH , Weight :23g