Best-chioce 2 Ports 9-Pin Serial RS232 PCI-E PCI Express Card Adapter Speed OZUS External USB Ports: 2 Port Operating Systems Supported: automated teller machine, bar-code reader, digital camera, digitizing tablet, external modem, finger print identification, infra-red transceiver, ISDN T/A, magnetic card reader, PDAs, POS devices, multi-modem dial-up server etc |