Rosewill Model RC-301 - Dual Serial Port PCI Card Type: PCI to Serial Port Card External Ports: 2 x 9 pins serial connectors Data Transfer Rate: 115200bps Operating Systems Supported: Windows 2000, Windows XP/2003/Vista 32/64 bit, Windows 7 32/64 bit, Windows 8 32/64 bit, Windows 10, Linux Specifications: Chipset: MOSCHIP MCS9835CV Package Contents: Manual, CD Drivers,RC-301 Serial Port Card