TRIPP LITE Add-On Cards Model PCE-D9-04-CBL Type: PCI Express to Serial Port Card External USB Ports: PCI Express Data Transfer Rate: 2.50 Gbit/s Operating Systems Supported: System Requirements: x0AComputer with available PCI Express (PCIe) expansion slot (x1, x4, x8 or x16) x0AWindows (2000 and later) or Linux (2.6.13 and later) Specifications: Connector A: PCIE 1-LANE (X1) x0AConnector B: (4) DB9 (MALE) x0APorts: 4 Package Contents: 4-Port DB9 (RS-232) Serial PCI Express card x0ADB9 breakout cable (HD44 to 4x DB9 M/M) x0ADriver CD x0AOwner's manual