The Syba SI-PEX50103 PCI Express parallel and serial Combo card with ASIX AX99100 chipset turns a PCI Express slot into 2 RS232 (DB9) serial, and 1 parallel port. Works with old software that requires re-mapping to legacy address. Designed around the well known serial/parallel I/O power house ASIX chipset. Serial ports are ideal for connecting to modem, cellular phone, PDA, ISDN terminal adapter, Satellite receiver, graphic tablet, bar Code scanner, label printer, automated teller machine, GPS, finger print identification, Infra-Red transceiver, packet radio, magnetic card reader, Pops devices, multi-modem dial-up server, digital camera, automation interface, and card reader. Keeps old serial devices alive.