Our line of CompactPCI RS-422/485 boards are dedicated serial boards designed specifically for CompactPCI systems. Though electrically similar to standard PCI boards, CompactPCI boards are made to be used in specialized enclosures designed to provide both superior protection against environmental hazards and easy access for rewiring, replacing, or exchanging boards. They cannot be installed directly into a PC unless specialized adapters are used. They offer Windows 95/98/Me/NT/2000/XP support and a 5-year warranty.