The CP-138U series boards provide 8 additional RS422/485 ports on any PC with a 3.3V or 5V PCI slot. The board is optimised for high performance whilst providing a very cost effective solution. A range of breakout cables provide a professional wiring solution for quick and easy installation. Drivers for all popular operating systems are available. The CP-138UI features opical isolation on all ports.

Please note that OPT8 accessories cannot be used with the CP-138UI, please choose 91085047 or 91085046.