Description brand new and high quality Features: Allows to connect serial and parallel devices to your computer easily. Stable and reliable chipset AX99100 with signal enhancement chip. Plug and for play installation. Specification: Model Number: TXB102 Chipset: AX99100-1P1S Port number: 1 x 9Pin Serial,1 x 25Pin Parallel Interface: PCI for Express 1X slot Applicable Model: regular desktop Support OS: Vista, XP, 2000,Linux, DOS, for Windows Server 2003 Material: PCB Baffle Size: approx.120mm/4.72in Color: As pictures shown Quantity: 1 Pc Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package Includes: 1 x PCIE Riser Card