Dennis,
If you are not trying to make a display cable as Fred mentioned and are trying to find out the #'s and name of your Scocket cards ports go into your Windows device manager (Control Panel / System / Hardware / Device Manager / Ports (COM & LPT) or if you are using Split Second software you can access the device manager from the Setup and Test page where you would assign your Timer and Scoreboad ports.
You will see a list of ports on your computer. The Socket card's ports will be listed depending on if you are using a dual or quad card as follows.
Socket Dual I/O Port A (com?)
Socket Dual I/O Port B (com?)
The question mark will be the com port #
For a quad card it would be
Socket Quad I/O Port A (com?)
Socket Quad I/O Port B (com?)
Socket Quad I/O Port C (com?)
Socket Quad I/O Port D (com?)
This will also show if they are working properly. If you see a small yellow triange with an exclamation point in it then the port is not working properly and you may have to reload you Socket Drivers or software.