"Ensure smooth data flow from either your serial or parallel port with an I/O Add-a-Port Adapter Cable from Cables To Go. Choose DB9-pin or DB25-pin male serial ports. These adapter cables connect to the motherboard or I/O adapter via flat ribbon cabling, and attach to a port knockout on your computer case. Connectors: Internal 10-pin IDS dual row to external DB9 Male. Straight-through configuration. Compatible with Intel D815EEA and like motherboards. Application: Serial."