Tripp Lite 2-Port DB9 (RS-232) Serial PCI Card with 16550 UART, Full Profile (PCI-D9-02) Type: Serial PCI Card Operating Systems Supported: System Requirements: Computer with available universal 3.3V and 5V 32-bit PCI/PCI-X slot Windows (XP and later) or Linux (2.6.x and later) Specifications: Color: Red Connector A: 110 IDC Connector B: DB9 (MALE) Ports: 2 Package Contents: PCI-D9-02 2-Port DB9 Serial PCI Express Card with 16550 UART, Full Profile Driver CD Owner's manual