I have 4 lan cards, same brand (linksys), and I was going to put them in my Asus p5pe-vm mobo and hook up along with the integrated lan to my DSL modem that has 5 ports and see if this will boost my PC's online download times. I am constantly running bitlord with various media and software downloads and I wanted this to help with the load I'm putting on the system. I have a Pentium 4 3.06GHz 533FSB, I just put some Arctic Silver Ceramic compound on the pentium 4 to keep things cool.