Startech PCI1S550, Bus PCI (5 Volt), Chipset ASIX - MCS9820CV, Ports-1, Max Baud Rate 115.2 Kbps, MTBF 6,548,788 Hours, Connector 1 - PCI (5V, 32-bit) Male, External Ports 1 - DB-9 (9 pin, D-Sub) Male, O/S Windows® DOS, 95, 98SE, 2000, Embedded System 2009, XP Embedded, POS Ready 2009, XP, Vista, 7, 8, 8.1, 10, Included 1 Port PCI Serial Card, Low Profile PCI Bracket, Driver CD, Instruction Manual. The PCI1S550 16550 Serial PCI Card can be installed in a PCI slot to add one RS232 serial port - a cost-effective solution for connecting any new serial device or old legacy serial device, with data tr