This pci express serial card adds two high performance rs232 serial ports to your desktop computer or server for connecting your serial based devices and equipment convenient system upgrades through pcie the pcie serial card can be installed into an available pci express slot to provide two high performance 16c1050 rs232 serial uart channelsports it offers a convenient solution for connecting modern or legacy equipment to newer computer systems that don39t have rs232 ports the serial card is c