Hi Troy,
The problem we find with a lot of laptops is that they simply don't have sufficient bandwidth to support our USB 3.0 devices. I'm afraid I couldn't suggest whether the HP Elitebook you mention will work as it is not one I'm aware of.
Currently we only certify the MSI GE620 for use with the UltraStudio Pro and Intensity Shuttle. You can find more information on compatibility on the following pages.
http://www.blackmagic-design.com/support/detail/supportnotes/supportnote/?s...
http://www.blackmagic-design.com/support/detail/supportnotes/supportnote/?s...
These articles can also be found from the UltraStudio pages in our support section here
http://www.blackmagic-design.com/support
Chris Pearse
Technical Support Consultant
Blackmagic Design EMEA