Add two serial and two parallel ports to your desktop system through a single pci slot the pci2s2pmc 2s2p pci serialparallel combo card 16c1050 uart adds 2 rs232 serial and 2 ieee 1284 parallel ports to your system through a pci slot supporting rs232 speeds up to 1152 kbps and parallel rates up to 15 mbps the serialparallel adapter offers the added connectivity needed for industrial and business applications while only occupying a single 335v pci slot this 2s 2p card offers a broa