Features: 1Data Exchange: This ISA to USB card is used for non real time data exchange between computer and industrial computer and embedded system. 2Widely Compatible: This ISA to USB board supports DOS versions from 3, x to 7, x. Suitable for Win 3.X, for Win 95/98 / ME and other operating systems. 3Less than 5K: Only one CH375DOS.SYS driver file is needed, the length is less than 5K, and only 4K is required after loading. 4Hot Swappable: This ISA to USB industrial card supports hot swappable U disk, easy to use, U disk can only be plugged in when needed. 5Stable Performance: The driver program only works when the application program reads and writes the U disk, and it does not affect the operation of the original DOS system and industrial control computer when it is idle. Package included: 1 x ISA&nbspto&nbspUSB&nbspCard 1 x Driver CD