USB spec1.1/2.0 support USB full-speeed(12Mbps)transmission. In Win me.2k.xp,Mac9.0 above,Linux2.4 above,no driver installation needed. . Driver Support Win 98SE LED indicator for status display. Write protection switch. High reading and writing speed:900k/s and 700k/s password protection and data encryption prevents unauthorized access to data Application Software support in Windows OS security function with the Application Software Resize (Partition)available with the Application Software Available in capacity of 128M,256M,512M,1G,2GB,4GB,8GB