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.
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C2G 27550 C2G DB9M Serial Add-A-Port Adapter serial cable Gray