4 port Serial RS232 RS-232 COM port to PCI-e Express PCIE Adapter with Cable - 9904 Chip

Add four RS-232 serial COM ports to a PCI-e Express (PCIE) slot with this adapter card, supplied complete with cable. Built on the 9904 chip, the card delivers four RS232 (RS-232) ports for reliable serial communication and legacy device connectivity.You may also like FOR UT-6312MT Industrial 10/100M TCP/IP RJ45 to 2 Ports RS-485/422 (RS485/422/RS422) Serial Device Server Converter.