| Features |
| 4 RS-232 ports |
| PCI or ISA bus available |
| Low repair rate with ASIC design |
| Speeds up to 921.6 Kbps |
| On-chip hardware flow control |
| Surge protection available |
| C104H/PCI |
PCI bus, 4 port RS-232 board |
| C104HS/PCI |
PCI bus, 4 port RS-232 board with surge protection
|
| C104H |
ISA bus, 8 port intelligent serial board |
| C104HS |
ISA bus, 4 port RS-232 board with surge protection |
