I ordered a few things from Ultimarc, ipac4, optipac, trackball. It came with two cables for the ipac4 but I thing that I am missing a usb cable for the optipac. I assume there should be some sort of serial to usb cable. If this is the case I know that I could get a hold of Andy and get one but is this something that I could just get at CompUSA, BestBuy ect so that I don't have to wait for one.