| Multiport Serial Boards > ISA Serial Boards |
 | C 104H Series 4-port RS-232 ISA serial boards |
 | C168H 8-Port RS 232 ISA Boards |
 | C218Turbo 8-port Intelligent RS-232 ISA Board |
 | C320Turbo 8-port to 32-port Intelligent RS-232 Multiport Controller ISA Board |
 | CI-132 Series 2-port RS-422/485 ISA Boards |
 | CI-134 4-port RS-422/485 ISA Boards |
