SER5056A - Sunix - SUNIX 4-Port RS-232 Universal PCI Serial Board SER5056A - Sunix - SUNIX 4-Port RS-232 Universal PCI Serial Board $195.55 $165.72
PCI-1612A-BE - Advantech - 4 x Port RS-232/422/485 PCI Serial Communication Card PCI-1612A-BE - Advantech - 4 x Port RS-232/422/485 PCI Serial Communication Card $224.25 $190.04
78Y2361 - Lenovo - RS-232 Brainboxes USB to Serial 1 Port 78Y2361 - Lenovo - RS-232 Brainboxes USB to Serial 1 Port $219.95 $186.40
PCI2S950DV - StarTech - 2-Port DB-9 RS-232 PCI Serial Adapter Card PCI2S950DV - StarTech - 2-Port DB-9 RS-232 PCI Serial Adapter Card $98.38 $83.37
PEX2S952 - StarTech - 2-Port DB-9 RS-232 PCI Express Serial Adapter Card PEX2S952 - StarTech - 2-Port DB-9 RS-232 PCI Express Serial Adapter Card $69.38 $58.80