StarTech.com Serial & Parallel Port Low & Full PC Backplates with Header Cable - StarTech.com PLATE9M16, This StarTech.com PLATE9M16 9-pin Serial Port Backplate has 1 x DB9 male connector and 1 x IDC10 motherboard connector. It is designed to connect to your motherboard and adds a serial port to the back of your PC on a full height backplate. The adaptor is constructed of high quality components and expertly designed to ensure durability and reliability. Please refer to your motherboard’s technical specifications to ensure compatibility with this product.Backed by StarTech.com\'s lifetime warranty. StarTech PLATE9M16 400mm 10-pin Header Cable to 9-pin Serial Full Size Backplate