PCI Express 2-port Serial + 1-port Parallel Card The PCIe2S1P PCI Serial/Parallel Combo Card turns a PCIe slot into two external 16C550 serial ports and one external EPP/ECP parallel port Chipset : WCH-382 Features : Compliant to 1-Lane (x1) PCI-Express with transfer rate 2.5Gb/s Compliant with PCI-Express Revision 1.0a Fully Plug & Play compatible Compatible with standard 16C550 UART with 16 byte transmit Receive FIFO Fast data rates up to 1 Mbytes/s Support RS232 Hardware Flow Control Fast date rates up to Built-in 16 Byte FIFO Connectors : 2 X 9-pin Serial, 1 X 25-pin Parallel Ports Supports Windows 2000/XP/2003/Vista Package Content : 1 X Product 1 X Driver CD (Note : Photo attached is for reference only, it may be slightly varied in items of colour, shape from the actual item delivered from time to time.) More models : PCIe 1S, PCIe 1P, PCIe 2S, PCIe 4S, PCIe 8S