1) Used to extend the COM interface to connect the motherboard and old-fashioned game controller interface must motherboard this extension can only be used
2) COM cable with a baffle , installed on the motherboard serial line , you can increase your computer's COM port with the baffles installed in the PCI at
3) 9-pin COM port rear baffle line : one for the standard 9-pin COM port , the other one connected to the motherboard pins
Empty PCI slot
4) Baffle behind to in front of mouth
5) Installation is simple and convenient to a 9-pin COM port for your computer
