Adafruit Product Code:
USB complexity got you down? Need a hand with enumeration? Reverse engineering a USB device? You will fall in love with the Beagle 12 USB Analyzer. This hardware analyzer is completely non-intrusive, and is much better than flaky software analyzers. Perfect for when a problem is bad enough it crashes the USB host, or for real time data capture analysis. We used the big-sister version (the Beagle 480) for our famous Open Kinect reverse-engineering bounty! It worked so well we decided to carry these in the shop.
The best part about this hardware analyzer is the excellent cross-platform software that runs equally well on Windows, Mac and Linux. Data is captured in real time, saved and parsed. Its trivial to sort through data to find the packet you're looking for. We even have a tutorial on how we did it so you can follow our steps in using the Beagle 12's Data Center Software
This particular model is good for Low-Speed & Full-Speed USB debugging. If you're debugging something that runs at High Speed (such as video or other high speed data transport devices), check out the Beagle 480.