Let’s start with a hardware overview of ov3, the third attempt to get it right. By the way, you can find everything in the openvizsla github repository. Just in case you want to build your own USB analyzer.
This post is about a teardown of an DPO5000 oscilloscope (DPO5034). This is a 2011, mid-range, Windows-based Tektronix oscilloscope. List price is $12.000, but eBay has them - used - down to $5500 or so if you’re lucky.