Motherboard COM Serial Port Line 9DB Pin Line Nine Pin COM Serial Cable Motherboard COM serial port cable/extension port chicle connector wire/nine pin COM serial cable. A head for standard 9-pin COM interface. 254 In addition, a head on the motherboard inserts the needle. The partition connects to the PCI slot on the back of the hole. Simple and easy to install, add a 9-pin COM port to your computer Product Description: 1. Used to extend the COM interface connected to the motherboard and vintage gamepad interface, you must have this extension function for the motherboard to be used ~ the length of the wire is about 30 cm 2. COM connection cable with partition, cable installed on the motherboard's serial port, can add the computer's COM port, with partition installed on PCI Motherboard COM Serial Port Line 9DB Pin Line Nine Pin COM Serial Cable Motherboard COM serial port cable/extension port chicle connector wire/nine pin COM serial cable. 9-pin COM nozzle splash guard line A head for standard 9-pin COM interface. Also a head from the motherboard insertion needle. The partition connects to the PCI slot on the back of the hole. Simple and easy to install, add a 9-pin COM port to your computer. Product Description: 1. Used to extend the COM interface connected to the motherboard and vintage gamepad interface, you must have this extension function for the motherboard to be used ~ the length of the wire is about 30 cm 2. COM connection cable with partition, cable installed on the motherboard's serial port, can add the computer's COM port, with partition installed on PCI Motherboard COM Serial Port Line 9DB Pin Line Nine Pin COM Serial Cable Motherboard COM serial port cable/extension port chicle connector wire/nine pin COM serial cable. 9-pin COM nozzle splash guard line A head for standard 9-pin COM interface. Also a head from the motherboard insertion needle. The partition connects to the PCI slot on the back of the hole. Simple and easy to install, add a 9-pin COM port to your computer.