I'm interested in purchasing a new MacBook Pro. I will need to run Windows onboard in order to utiize some GPS processing software that I use in my line of work. My question is, is there a USB cable adapter available that will allow me to plug in a software dongle to a DB25 female port? I will need this option in order to run this software license for my GPS/GIS software. Any intel you could provide would be appreciated. This is the only roadblock to my purchasing a MacBook. Thanks in advance.