I can only confirm that, with the correct USB firmware, and the correct Blackmagic Drivers, you can indeed capture from an Intensity Shuttle USB 3.0. I agree that BM should try to certify more computers for their products, but I realize that they are not a extremely large company, and to try to certify every possible combination is not always practical.
I was looking to create a portable streaming solution for my use case, and to it’s credit, it worked for that purpose, but I had a few dropouts while broadcasting. I’ve decided that in the future, I’m going to use their h.264 encoder to offload as much of the processing as I can and let the computer just work on the streaming.
If you want any further details, let me know, and I’ll see what I can dig out, since I have both the products you were looking at. In all honesty, I’m wishing that I had gone Mac and Thunderbolt, since that’s a much easier thing to quantify.
Jim Archer