PCI-1620A/B PCI-1620U NEW 8-port RS-232 PCI Commu.
Advantech
PCI-1620B - 8-port RS-232 PCI Communication Card
PCI-1620A/B PCI-1620U NEW 8-port RS-232 PCI Communication Card, with Surge Protection 8-port RS-232 Universal PCI Communication Card, with Surge Prot.