I've used several of different brands ones while debugging PCIe NICs, and they are mostly tricky to set up (like sometimes hours or days of fiddling to get a li

I've used several of different brands ones while debugging PCIe NICs, and they are mostly tricky to set up (like sometimes hours or days of fiddling to get a link at the right speed / width). But once setup, they are incredibly informative. The last time I used one was ~2015, and it was not nearly as nice as wireshark