I also tested with another one that was problematic that I mentioned above:
....
I purchased this one from Amazon: https://smile.amazon.com/gp/product/B00Q2ONMI0/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
Yes the Beagle 480 looks great if I were to do this on a full time basis. I can do pretty well with the Saleae Logic Analyzer again only up 12MBS... Works pretty well for the lower speed stuff.
For now just trying to make it easier to tap into the signals. I had an USB extension cable that I took apart to the get the signals... But the wires finally broke inside the connector... Could probably fix. But may try to make a simpler connection, I am guessing with the Beagle, you simply plug the USB into your computer and plug the USB you wish to analyze directly into it, which would be nice and simple!
Looks sort of interesting, but sounds like you would have to make your own boards for this... At least I did not see anyone selling them. For now will stick with Logic Analyzer stuff. Again can not do the 480 stuff only the slower stuff.Might be worth mentioning OpenVizsla, which is meant to do everything the Beagle480 does. It's software isn't nearly as developed as what you get from Total Phase.
http://openvizsla.org/
https://www.kickstarter.com/projects/bushing/openvizsla-open-source-usb-protocol-analyzer/
OpenVizsla was one of the earliest Kickstarter projects. Like so many others it went through quite a saga of problems. Eventually the project creator did get the hardware made and shipped, though a pretty much epic struggle without most of the original funding. He passed away a couple years later. He did release everything as open source and it's all still online. Whether anyone else will ever seriously continue its development is a good question.